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List of contexts inside reports submitted by ALEXANDERS INC

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Report: alx-20181231.xml or XBRLViewer

  1. Date: From Jan 1, 2021 to Dec 31, 2021
  2. Date: As of Dec 31, 2021
  3. Date: As of Jan 31, 2019
  4. Date: As of Jan 10, 2019
  5. Date: As of Jan 1, 2019
  6. Date: From Jan 1, 2018 to Dec 31, 2018
  7. Date: As of Dec 31, 2018
  8. Date: As of Dec 12, 2018
  9. Date: From Dec 11, 2018 to Dec 11, 2018
  10. Date: As of Oct 3, 2018
  11. Date: As of Oct 2, 2018
  12. Date: From Jul 1, 2018 to Sep 30, 2018
  13. Date: From Apr 1, 2018 to Jun 30, 2018
  14. Date: As of Jun 30, 2018
  15. Date: From May 17, 2018 to May 17, 2018
  16. Date: From Jan 1, 2018 to Mar 31, 2018
  17. Date: As of Jan 1, 2018
  18. Date: From Jan 1, 2017 to Dec 31, 2017
  19. Date: As of Dec 31, 2017
  20. Date: From Jul 1, 2017 to Sep 30, 2017
  21. Date: From Apr 1, 2017 to Jun 30, 2017
  22. Date: As of Apr 4, 2017
  23. Date: From Jan 1, 2017 to Mar 31, 2017
  24. Date: From Jan 1, 2016 to Dec 31, 2016
  25. Date: As of Dec 31, 2016
  26. Date: From Mar 1, 2016 to Mar 31, 2016
  27. Date: As of Dec 31, 2015
  28. Date: From Feb 1, 2014 to Feb 28, 2014
  29. Date: As of Dec 31, 2001

Report: alx-20180930.xml or XBRLViewer

  1. Date: As of Dec 31, 2021
  2. Date: From Jan 1, 2021 to Dec 31, 2021
  3. Date: As of Oct 26, 2018
  4. Date: As of Oct 3, 2018
  5. Date: From Oct 3, 2018 to Oct 3, 2018
  6. Date: From Jan 1, 2018 to Sep 30, 2018
  7. Date: As of Sep 30, 2018
  8. Date: As of Jun 30, 2018
  9. Date: From May 17, 2018 to May 17, 2018
  10. Date: From Jan 1, 2018 to Mar 31, 2018
  11. Date: As of Jan 1, 2018
  12. Date: As of Dec 31, 2017
  13. Date: From Jul 1, 2017 to Sep 30, 2017
  14. Date: As of Sep 30, 2017
  15. Date: From Jul 28, 2017 to Jul 28, 2017
  16. Date: As of Apr 4, 2017
  17. Date: As of Dec 31, 2016
  18. Date: From Mar 1, 2016 to Mar 31, 2016
  19. Date: From Feb 1, 2014 to Feb 28, 2014
  20. Date: As of Dec 31, 2001

Report: alx-20180630.xml or XBRLViewer

  1. Date: As of Dec 31, 2021
  2. Date: From Jan 1, 2021 to Dec 31, 2021
  3. Date: As of Jul 27, 2018
  4. Date: From Jan 1, 2018 to Jun 30, 2018
  5. Date: As of Jun 30, 2018
  6. Date: From May 1, 2018 to May 31, 2018
  7. Date: As of Mar 31, 2018
  8. Date: As of Jan 1, 2018
  9. Date: As of Dec 31, 2017
  10. Date: From Jul 28, 2017 to Jul 28, 2017
  11. Date: From Jan 1, 2017 to Jun 30, 2017
  12. Date: As of Jun 30, 2017
  13. Date: As of Dec 31, 2016
  14. Date: From Mar 1, 2016 to Mar 31, 2016
  15. Date: From Feb 1, 2014 to Feb 28, 2014
  16. Date: As of Dec 31, 2001

Report: alx-20180331.xml or XBRLViewer

  1. Date: As of Dec 31, 2021
  2. Date: From Jan 1, 2021 to Dec 31, 2021
  3. Date: As of Apr 27, 2018
  4. Date: From Jan 1, 2018 to Mar 31, 2018
  5. Date: As of Mar 31, 2018
  6. Date: As of Jan 1, 2018
  7. Date: As of Dec 31, 2017
  8. Date: From Jul 28, 2017 to Jul 28, 2017
  9. Date: From Jan 1, 2017 to Mar 31, 2017
  10. Date: As of Mar 31, 2017
  11. Date: As of Dec 31, 2016
  12. Date: From Mar 1, 2016 to Mar 31, 2016
  13. Date: From Feb 1, 2014 to Feb 28, 2014
  14. Date: As of Dec 31, 2001

Report: alx-20171231.xml or XBRLViewer

  1. Date: As of Dec 31, 2021
  2. Date: From Jan 1, 2021 to Dec 31, 2021
  3. Date: From Jan 1, 2018 to Mar 31, 2018
  4. Date: As of Jan 31, 2018
  5. Date: From Jan 1, 2018 to Jan 1, 2018
  6. Date: As of Jan 1, 2018
  7. Date: As of Dec 31, 2017
  8. Date: From Jan 1, 2017 to Dec 31, 2017
  9. Date: From Jul 1, 2017 to Sep 30, 2017
  10. Date: As of Sep 19, 2017
  11. Date: From Jul 28, 2017 to Jul 28, 2017
  12. Date: As of Jun 30, 2017
  13. Date: From Apr 1, 2017 to Jun 30, 2017
  14. Date: From Jun 1, 2017 to Jun 1, 2017
  15. Date: As of Jun 1, 2017
  16. Date: As of May 31, 2017
  17. Date: From Jan 1, 2017 to May 31, 2017
  18. Date: From May 18, 2017 to May 18, 2017
  19. Date: As of Apr 4, 2017
  20. Date: From Jan 1, 2017 to Mar 31, 2017
  21. Date: From Jan 1, 2016 to Dec 31, 2016
  22. Date: As of Dec 31, 2016
  23. Date: From Jul 1, 2016 to Sep 30, 2016
  24. Date: From Apr 1, 2016 to Jun 30, 2016
  25. Date: From Mar 1, 2016 to Mar 31, 2016
  26. Date: As of Mar 31, 2016
  27. Date: From Jan 1, 2016 to Jan 31, 2016
  28. Date: From Jan 1, 2015 to Dec 31, 2015
  29. Date: As of Dec 31, 2015
  30. Date: From Oct 1, 2015 to Oct 31, 2015
  31. Date: As of Dec 31, 2014
  32. Date: From Feb 1, 2014 to Feb 28, 2014
  33. Date: As of Dec 31, 2001

Report: alx-20170930.xml or XBRLViewer

  1. Date: As of Dec 31, 2021
  2. Date: From Jan 1, 2021 to Dec 31, 2021
  3. Date: From Jan 1, 2018 to Mar 31, 2018
  4. Date: From Oct 1, 2017 to Dec 31, 2017
  5. Date: As of Oct 30, 2017
  6. Date: From Jul 1, 2017 to Sep 30, 2017
  7. Date: As of Sep 30, 2017
  8. Date: From Jul 28, 2017 to Jul 28, 2017
  9. Date: From Jun 1, 2017 to Jun 1, 2017
  10. Date: As of Jun 1, 2017
  11. Date: As of May 31, 2017
  12. Date: From Jan 1, 2017 to May 31, 2017
  13. Date: From May 18, 2017 to May 18, 2017
  14. Date: As of Dec 31, 2016
  15. Date: From Jan 1, 2016 to Sep 30, 2016
  16. Date: As of Sep 30, 2016
  17. Date: As of Mar 31, 2016
  18. Date: From Mar 1, 2016 to Mar 31, 2016
  19. Date: From Jan 1, 2016 to Jan 31, 2016
  20. Date: As of Dec 31, 2015
  21. Date: From Jun 1, 2014 to Jun 30, 2014
  22. Date: From Feb 1, 2014 to Feb 28, 2014
  23. Date: As of Dec 31, 2001

Report: alx-20170630.xml or XBRLViewer

  1. Date: As of Dec 31, 2021
  2. Date: From Jan 1, 2021 to Dec 31, 2021
  3. Date: As of Jul 31, 2017
  4. Date: As of Jul 28, 2017
  5. Date: From Jul 28, 2017 to Jul 28, 2017
  6. Date: From Jan 1, 2017 to Jun 30, 2017
  7. Date: As of Jun 30, 2017
  8. Date: From May 1, 2017 to May 31, 2017
  9. Date: As of May 31, 2017
  10. Date: As of Dec 31, 2016
  11. Date: From Apr 1, 2016 to Jun 30, 2016
  12. Date: As of Jun 30, 2016
  13. Date: As of Mar 31, 2016
  14. Date: From Mar 1, 2016 to Mar 31, 2016
  15. Date: From Jan 1, 2016 to Jan 31, 2016
  16. Date: As of Dec 31, 2015
  17. Date: From Jun 24, 2014 to Jun 24, 2014
  18. Date: From Feb 1, 2014 to Feb 28, 2014
  19. Date: As of Dec 31, 2001

Report: alx-20170331.xml or XBRLViewer

  1. Date: As of Dec 31, 2021
  2. Date: From Jan 1, 2021 to Dec 31, 2021
  3. Date: As of Apr 30, 2017
  4. Date: From Jan 1, 2017 to Mar 31, 2017
  5. Date: As of Mar 31, 2017
  6. Date: As of Dec 31, 2016
  7. Date: From Jan 1, 2016 to Mar 31, 2016
  8. Date: As of Mar 31, 2016
  9. Date: From Jan 1, 2016 to Jan 31, 2016
  10. Date: As of Dec 31, 2015
  11. Date: From Oct 14, 2015 to Oct 15, 2015
  12. Date: From Jun 23, 2014 to Jun 24, 2014
  13. Date: From Feb 1, 2014 to Feb 28, 2014
  14. Date: As of Dec 31, 2001

Report: alx-20161231.xml or XBRLViewer

  1. Date: From Jan 1, 2021 to Dec 31, 2021
  2. Date: As of Dec 31, 2021
  3. Date: As of Jan 31, 2017
  4. Date: As of Jan 2, 2017
  5. Date: From Jan 1, 2016 to Dec 31, 2016
  6. Date: As of Dec 31, 2016
  7. Date: From Jul 1, 2016 to Sep 30, 2016
  8. Date: From Apr 1, 2016 to Jun 30, 2016
  9. Date: As of Jun 30, 2016
  10. Date: From May 1, 2016 to May 31, 2016
  11. Date: As of Mar 31, 2016
  12. Date: From Jan 1, 2016 to Mar 31, 2016
  13. Date: As of Jan 31, 2016
  14. Date: From Jan 1, 2016 to Jan 31, 2016
  15. Date: As of Dec 31, 2015
  16. Date: From Jan 1, 2015 to Dec 31, 2015
  17. Date: From Oct 1, 2015 to Oct 31, 2015
  18. Date: From Oct 14, 2015 to Oct 15, 2015
  19. Date: From Jul 1, 2015 to Sep 30, 2015
  20. Date: From Apr 1, 2015 to Jun 30, 2015
  21. Date: From Jan 1, 2015 to Mar 31, 2015
  22. Date: From Jan 1, 2014 to Dec 31, 2014
  23. Date: As of Dec 31, 2014
  24. Date: From Dec 1, 2014 to Dec 22, 2014
  25. Date: From Dec 1, 2014 to Dec 21, 2014
  26. Date: From Jun 23, 2014 to Jun 24, 2014
  27. Date: From Feb 1, 2014 to Feb 28, 2014
  28. Date: As of Dec 31, 2013
  29. Date: As of Dec 31, 2001

Report: alx-20160930.xml or XBRLViewer

  1. Date: As of Dec 31, 2021
  2. Date: From Jan 1, 2021 to Dec 31, 2021
  3. Date: As of Oct 31, 2016
  4. Date: As of Sep 30, 2016
  5. Date: From Jan 1, 2016 to Sep 30, 2016
  6. Date: From May 1, 2016 to May 31, 2016
  7. Date: As of Mar 31, 2016
  8. Date: From Mar 1, 2016 to Mar 31, 2016
  9. Date: As of Jan 31, 2016
  10. Date: From Jan 1, 2016 to Jan 31, 2016
  11. Date: As of Dec 31, 2015
  12. Date: From Oct 14, 2015 to Oct 15, 2015
  13. Date: As of Sep 30, 2015
  14. Date: From Jan 1, 2015 to Sep 30, 2015
  15. Date: As of Dec 31, 2014
  16. Date: As of Oct 31, 2014
  17. Date: From Oct 1, 2014 to Oct 31, 2014
  18. Date: From Jun 23, 2014 to Jun 24, 2014
  19. Date: From Feb 1, 2014 to Feb 28, 2014
  20. Date: As of Dec 31, 2001

Report: alx-20160630.xml or XBRLViewer

  1. Date: As of Dec 31, 2021
  2. Date: From Jan 1, 2021 to Dec 31, 2021
  3. Date: As of Jul 31, 2016
  4. Date: As of Jun 30, 2016
  5. Date: From Jan 1, 2016 to Jun 30, 2016
  6. Date: From May 1, 2016 to May 31, 2016
  7. Date: From Mar 1, 2016 to Mar 31, 2016
  8. Date: As of Mar 31, 2016
  9. Date: As of Jan 31, 2016
  10. Date: From Jan 1, 2016 to Jan 31, 2016
  11. Date: As of Dec 31, 2015
  12. Date: From Oct 14, 2015 to Oct 15, 2015
  13. Date: From Jan 1, 2015 to Jun 30, 2015
  14. Date: As of Jun 30, 2015
  15. Date: As of Dec 31, 2014
  16. Date: As of Oct 31, 2014
  17. Date: From Oct 1, 2014 to Oct 31, 2014
  18. Date: From Jun 23, 2014 to Jun 24, 2014
  19. Date: From Feb 1, 2014 to Feb 28, 2014
  20. Date: As of Dec 31, 2001

Report: alx-20160331.xml or XBRLViewer

  1. Date: As of Dec 31, 2021
  2. Date: From Jan 1, 2021 to Dec 31, 2021
  3. Date: As of Apr 30, 2016
  4. Date: From Jan 1, 2016 to Mar 31, 2016
  5. Date: As of Mar 31, 2016
  6. Date: As of Jan 31, 2016
  7. Date: From Jan 1, 2016 to Jan 31, 2016
  8. Date: As of Dec 31, 2015
  9. Date: From Oct 14, 2015 to Oct 15, 2015
  10. Date: As of Mar 31, 2015
  11. Date: From Jan 1, 2015 to Mar 31, 2015
  12. Date: As of Dec 31, 2014
  13. Date: As of Oct 31, 2014
  14. Date: From Oct 1, 2014 to Oct 31, 2014
  15. Date: From Jun 23, 2014 to Jun 24, 2014
  16. Date: From Feb 1, 2014 to Feb 28, 2014
  17. Date: As of Dec 31, 2001

Report: alx-20151231.xml or XBRLViewer

  1. Date: From Jan 1, 2021 to Dec 31, 2021
  2. Date: As of Dec 31, 2021
  3. Date: From Jan 1, 2016 to Dec 31, 2016
  4. Date: As of Jan 31, 2016
  5. Date: From Jan 1, 2016 to Jan 31, 2016
  6. Date: As of Dec 31, 2015
  7. Date: From Jan 1, 2015 to Dec 31, 2015
  8. Date: From Oct 1, 2015 to Oct 31, 2015
  9. Date: From Oct 14, 2015 to Oct 15, 2015
  10. Date: From Jul 1, 2015 to Sep 30, 2015
  11. Date: As of Aug 31, 2015
  12. Date: From Aug 1, 2015 to Aug 31, 2015
  13. Date: From Apr 1, 2015 to Jun 30, 2015
  14. Date: As of Jun 30, 2015
  15. Date: From May 1, 2015 to May 31, 2015
  16. Date: From Jan 1, 2015 to Mar 31, 2015
  17. Date: As of Dec 31, 2014
  18. Date: From Jan 1, 2014 to Dec 31, 2014
  19. Date: From Dec 21, 2014 to Dec 22, 2014
  20. Date: As of Oct 31, 2014
  21. Date: From Oct 1, 2014 to Oct 31, 2014
  22. Date: From Jul 1, 2014 to Sep 30, 2014
  23. Date: From Apr 1, 2014 to Jun 30, 2014
  24. Date: From Jun 23, 2014 to Jun 24, 2014
  25. Date: From Jan 1, 2014 to Mar 31, 2014
  26. Date: As of Feb 28, 2014
  27. Date: From Feb 1, 2014 to Feb 28, 2014
  28. Date: From Jan 1, 2013 to Dec 31, 2013
  29. Date: As of Dec 31, 2013
  30. Date: As of Dec 31, 2012
  31. Date: As of Nov 28, 2012
  32. Date: From Nov 27, 2012 to Nov 28, 2012
  33. Date: As of Dec 31, 2001

Report: alx-20150930.xml or XBRLViewer

  1. Date: As of Dec 31, 2021
  2. Date: From Jan 1, 2021 to Dec 31, 2021
  3. Date: As of Jan 1, 2016
  4. Date: As of Oct 30, 2015
  5. Date: From Oct 14, 2015 to Oct 15, 2015
  6. Date: From Jan 1, 2015 to Sep 30, 2015
  7. Date: As of Sep 30, 2015
  8. Date: From Aug 4, 2015 to Aug 5, 2015
  9. Date: As of Aug 5, 2015
  10. Date: From Apr 1, 2015 to Jun 30, 2015
  11. Date: From May 1, 2015 to May 31, 2015
  12. Date: As of Dec 31, 2014
  13. Date: From Dec 21, 2014 to Dec 22, 2014
  14. Date: From Oct 1, 2014 to Oct 31, 2014
  15. Date: As of Oct 31, 2014
  16. Date: From Jul 1, 2014 to Sep 30, 2014
  17. Date: As of Sep 30, 2014
  18. Date: From Jun 23, 2014 to Jun 24, 2014
  19. Date: As of Dec 31, 2013
  20. Date: As of Dec 31, 2001

Report: alx-20150630.xml or XBRLViewer

  1. Date: From Jan 1, 2021 to Dec 31, 2021
  2. Date: As of Dec 31, 2021
  3. Date: As of Jan 1, 2016
  4. Date: As of Jul 31, 2015
  5. Date: From Jan 1, 2015 to Jun 30, 2015
  6. Date: As of Jun 30, 2015
  7. Date: From May 1, 2015 to May 31, 2015
  8. Date: As of Dec 31, 2014
  9. Date: From Dec 21, 2014 to Dec 22, 2014
  10. Date: From Oct 1, 2014 to Oct 31, 2014
  11. Date: As of Oct 31, 2014
  12. Date: As of Jun 30, 2014
  13. Date: From Apr 1, 2014 to Jun 30, 2014
  14. Date: From Jun 23, 2014 to Jun 24, 2014
  15. Date: As of Dec 31, 2013
  16. Date: As of Dec 31, 2001

Report: alx-20150331.xml or XBRLViewer

  1. Date: From Jan 1, 2021 to Dec 31, 2021
  2. Date: As of Dec 31, 2021
  3. Date: As of Jan 1, 2016
  4. Date: As of Apr 30, 2015
  5. Date: As of Mar 31, 2015
  6. Date: From Jan 1, 2015 to Mar 31, 2015
  7. Date: As of Dec 31, 2014
  8. Date: From Dec 21, 2014 to Dec 22, 2014
  9. Date: From Oct 1, 2014 to Oct 31, 2014
  10. Date: As of Oct 31, 2014
  11. Date: From Jun 23, 2014 to Jun 24, 2014
  12. Date: From Jan 1, 2014 to Mar 31, 2014
  13. Date: As of Mar 31, 2014
  14. Date: As of Dec 31, 2013
  15. Date: As of Dec 31, 2001

Report: alx-20141231.xml or XBRLViewer

  1. Date: As of Dec 31, 2021
  2. Date: From Jan 1, 2021 to Dec 31, 2021
  3. Date: As of Jan 1, 2016
  4. Date: As of Jan 31, 2015
  5. Date: As of Dec 31, 2014
  6. Date: From Jan 1, 2014 to Dec 31, 2014
  7. Date: From Dec 21, 2014 to Dec 22, 2014
  8. Date: From Oct 1, 2014 to Oct 31, 2014
  9. Date: As of Oct 31, 2014
  10. Date: From Jul 1, 2014 to Sep 30, 2014
  11. Date: As of Jun 30, 2014
  12. Date: From Apr 1, 2014 to Jun 30, 2014
  13. Date: From Jun 23, 2014 to Jun 24, 2014
  14. Date: From May 1, 2014 to May 31, 2014
  15. Date: From Jan 1, 2014 to Mar 31, 2014
  16. Date: As of Feb 28, 2014
  17. Date: From Feb 27, 2014 to Feb 28, 2014
  18. Date: From Jan 1, 2013 to Dec 31, 2013
  19. Date: As of Dec 31, 2013
  20. Date: From Jul 1, 2013 to Sep 30, 2013
  21. Date: From Apr 1, 2013 to Jun 30, 2013
  22. Date: From Jan 1, 2013 to Mar 31, 2013
  23. Date: As of Dec 31, 2012
  24. Date: From Jan 1, 2012 to Dec 31, 2012
  25. Date: As of Nov 30, 2012
  26. Date: From Nov 29, 2012 to Nov 30, 2012
  27. Date: From Nov 27, 2012 to Nov 28, 2012
  28. Date: As of Nov 28, 2012
  29. Date: As of Dec 31, 2011
  30. Date: As of Dec 31, 2001

Report: alx-20140930.xml or XBRLViewer

  1. Date: From Jan 1, 2021 to Dec 31, 2021
  2. Date: As of Dec 31, 2021
  3. Date: As of Oct 31, 2014
  4. Date: From Oct 1, 2014 to Oct 31, 2014
  5. Date: From Jan 1, 2014 to Sep 30, 2014
  6. Date: As of Sep 30, 2014
  7. Date: From Jun 23, 2014 to Jun 24, 2014
  8. Date: From May 1, 2014 to May 31, 2014
  9. Date: From Feb 27, 2014 to Feb 28, 2014
  10. Date: As of Feb 28, 2014
  11. Date: As of Dec 31, 2013
  12. Date: From Jul 1, 2013 to Sep 30, 2013
  13. Date: As of Sep 30, 2013
  14. Date: As of Dec 31, 2012
  15. Date: As of Dec 31, 2001

Report: alx-20140630.xml or XBRLViewer

  1. Date: As of Dec 31, 2021
  2. Date: From Jan 1, 2021 to Dec 31, 2021
  3. Date: As of Jul 31, 2014
  4. Date: As of Jun 30, 2014
  5. Date: From Jan 1, 2014 to Jun 30, 2014
  6. Date: From Jun 23, 2014 to Jun 24, 2014
  7. Date: From May 1, 2014 to May 31, 2014
  8. Date: As of Feb 28, 2014
  9. Date: From Feb 27, 2014 to Feb 28, 2014
  10. Date: As of Dec 31, 2013
  11. Date: From Apr 1, 2013 to Jun 30, 2013
  12. Date: As of Jun 30, 2013
  13. Date: As of Dec 31, 2012
  14. Date: As of Dec 31, 2001

Report: alx-20140331.xml or XBRLViewer

  1. Date: As of Dec 31, 2021
  2. Date: From Jan 1, 2021 to Dec 31, 2021
  3. Date: As of Apr 30, 2014
  4. Date: As of Mar 31, 2014
  5. Date: From Jan 1, 2014 to Mar 31, 2014
  6. Date: From Feb 27, 2014 to Feb 28, 2014
  7. Date: As of Feb 28, 2014
  8. Date: As of Dec 31, 2013
  9. Date: As of Mar 31, 2013
  10. Date: From Jan 1, 2013 to Mar 31, 2013
  11. Date: As of Dec 31, 2012
  12. Date: As of Dec 31, 2001

Report: alx-20131231.xml or XBRLViewer

  1. Date: From Jan 1, 2021 to Dec 31, 2021
  2. Date: As of Jan 31, 2014
  3. Date: From Jan 1, 2013 to Dec 31, 2013
  4. Date: As of Dec 31, 2013
  5. Date: From Jul 1, 2013 to Sep 30, 2013
  6. Date: As of Jun 30, 2013
  7. Date: From Apr 1, 2013 to Jun 30, 2013
  8. Date: From May 1, 2013 to May 31, 2013
  9. Date: From Jan 1, 2013 to Mar 31, 2013
  10. Date: As of Dec 31, 2012
  11. Date: From Jan 1, 2012 to Dec 31, 2012
  12. Date: From Nov 1, 2012 to Nov 30, 2012
  13. Date: As of Nov 30, 2012
  14. Date: As of Nov 28, 2012
  15. Date: From Nov 27, 2012 to Nov 28, 2012
  16. Date: From Jul 1, 2012 to Sep 30, 2012
  17. Date: From Apr 1, 2012 to Jun 30, 2012
  18. Date: From Jan 1, 2012 to Mar 31, 2012
  19. Date: From Jan 1, 2011 to Dec 31, 2011
  20. Date: As of Dec 31, 2011
  21. Date: From Nov 1, 2011 to Nov 30, 2011
  22. Date: As of Dec 31, 2010
  23. Date: As of Dec 31, 2002
  24. Date: As of Dec 31, 2001

Report: alx-20130930.xml or XBRLViewer

  1. Date: As of Dec 31, 2021
  2. Date: From Jan 1, 2021 to Dec 31, 2021
  3. Date: As of Oct 31, 2013
  4. Date: As of Sep 30, 2013
  5. Date: From Jan 1, 2013 to Sep 30, 2013
  6. Date: From May 1, 2013 to May 31, 2013
  7. Date: As of Dec 31, 2012
  8. Date: From Jan 1, 2012 to Sep 30, 2012
  9. Date: As of Sep 30, 2012
  10. Date: As of Dec 31, 2011
  11. Date: As of Dec 31, 2001

Report: alx-20130630.xml or XBRLViewer

  1. Date: From Jan 1, 2021 to Dec 31, 2021
  2. Date: As of Dec 31, 2021
  3. Date: As of Jul 31, 2013
  4. Date: As of Jun 30, 2013
  5. Date: From Jan 1, 2013 to Jun 30, 2013
  6. Date: From May 1, 2013 to May 31, 2013
  7. Date: As of Dec 31, 2012
  8. Date: From Apr 1, 2012 to Jun 30, 2012
  9. Date: As of Jun 30, 2012
  10. Date: As of Dec 31, 2011
  11. Date: As of Dec 31, 2001

Report: alx-20130331.xml or XBRLViewer

  1. Date: From Jan 1, 2021 to Dec 31, 2021
  2. Date: As of Dec 31, 2021
  3. Date: As of Apr 30, 2013
  4. Date: As of Mar 31, 2013
  5. Date: From Jan 1, 2013 to Mar 31, 2013
  6. Date: As of Dec 31, 2012
  7. Date: As of Mar 31, 2012
  8. Date: From Jan 1, 2012 to Mar 31, 2012
  9. Date: As of Dec 31, 2011
  10. Date: As of Dec 31, 2001

Report: alx-20121231.xml or XBRLViewer

  1. Date: From Jan 1, 2021 to Dec 31, 2021
  2. Date: As of Dec 31, 2021
  3. Date: As of Dec 31, 2012
  4. Date: From Jan 1, 2012 to Dec 31, 2012
  5. Date: From Nov 1, 2012 to Nov 30, 2012
  6. Date: As of Nov 30, 2012
  7. Date: From Nov 27, 2012 to Nov 28, 2012
  8. Date: As of Nov 28, 2012
  9. Date: From Jul 1, 2012 to Sep 30, 2012
  10. Date: From Apr 1, 2012 to Jun 30, 2012
  11. Date: As of Jun 30, 2012
  12. Date: From May 1, 2012 to May 31, 2012
  13. Date: From Jan 1, 2012 to Mar 31, 2012
  14. Date: From Jan 1, 2011 to Dec 31, 2011
  15. Date: As of Dec 31, 2011
  16. Date: From Jul 1, 2011 to Sep 30, 2011
  17. Date: From Apr 1, 2011 to Jun 30, 2011
  18. Date: From Jan 1, 2011 to Mar 31, 2011
  19. Date: As of Dec 31, 2010
  20. Date: From Jan 1, 2010 to Dec 31, 2010
  21. Date: As of Dec 31, 2009
  22. Date: As of Dec 31, 2002

Report: alx-20120930.xml or XBRLViewer

  1. Date: As of Oct 31, 2012
  2. Date: As of Oct 21, 2012
  3. Date: From Oct 20, 2012 to Oct 21, 2012
  4. Date: From Jan 1, 2012 to Sep 30, 2012
  5. Date: As of Sep 30, 2012
  6. Date: From May 1, 2012 to May 31, 2012
  7. Date: As of Dec 31, 2011
  8. Date: From Jan 1, 2011 to Sep 30, 2011
  9. Date: As of Sep 30, 2011
  10. Date: As of Dec 31, 2010

Report: alx-20120630.xml or XBRLViewer

  1. Date: As of Jul 31, 2012
  2. Date: From Jan 1, 2012 to Jun 30, 2012
  3. Date: As of Jun 30, 2012
  4. Date: From May 1, 2012 to May 31, 2012
  5. Date: As of Dec 31, 2011
  6. Date: From Apr 1, 2011 to Jun 30, 2011
  7. Date: As of Jun 30, 2011
  8. Date: As of Dec 31, 2010

Report: alx-20120331.xml or XBRLViewer

  1. Date: From Jan 1, 2021 to Dec 31, 2021
  2. Date: As of Dec 31, 2021
  3. Date: As of Apr 30, 2012
  4. Date: As of Mar 31, 2012
  5. Date: From Jan 1, 2012 to Mar 31, 2012
  6. Date: As of Dec 31, 2011
  7. Date: From Jan 1, 2011 to Mar 31, 2011
  8. Date: As of Mar 31, 2011
  9. Date: As of Dec 31, 2010

Report: alx-20111231.xml or XBRLViewer

  1. Date: From Jan 1, 2021 to Dec 31, 2021
  2. Date: As of Dec 31, 2021
  3. Date: As of Dec 31, 2011
  4. Date: From Jan 1, 2011 to Dec 31, 2011
  5. Date: From Nov 29, 2011 to Nov 30, 2011
  6. Date: As of Nov 30, 2011
  7. Date: From Oct 4, 2011 to Oct 5, 2011
  8. Date: From Jul 1, 2011 to Sep 30, 2011
  9. Date: From Apr 1, 2011 to Jun 30, 2011
  10. Date: As of Jun 30, 2011
  11. Date: As of Jun 29, 2011
  12. Date: From Jun 1, 2011 to Jun 29, 2011
  13. Date: As of Jun 10, 2011
  14. Date: From Jun 9, 2011 to Jun 10, 2011
  15. Date: From May 25, 2011 to May 26, 2011
  16. Date: From Jan 1, 2011 to Mar 31, 2011
  17. Date: From Oct 1, 2010 to Dec 31, 2010
  18. Date: As of Dec 31, 2010
  19. Date: From Jul 1, 2010 to Sep 30, 2010
  20. Date: From Apr 1, 2010 to Jun 30, 2010
  21. Date: From Jan 1, 2010 to Mar 31, 2010
  22. Date: From Jan 1, 2009 to Dec 31, 2009
  23. Date: As of Dec 31, 2009
  24. Date: As of Dec 31, 2008
  25. Date: From Jan 1, 2003 to Dec 31, 2003
  26. Date: As of Dec 31, 2003

Report: alx-20110930.xml or XBRLViewer

  1. Date: From Jan 1, 2011 to Sep 30, 2011
  2. Date: As of Sep 30, 2011
  3. Date: As of Dec 31, 2010
  4. Date: As of Sep 30, 2010
  5. Date: From Jan 1, 2010 to Sep 30, 2010
  6. Date: As of Dec 31, 2009

Report: alx-20110630.xml or XBRLViewer

  1. Date: From Jan 1, 2011 to Jun 30, 2011
  2. Date: As of Jun 30, 2011
  3. Date: As of Dec 31, 2010
  4. Date: As of Jun 30, 2010
  5. Date: From Jan 1, 2010 to Jun 30, 2010
  6. Date: As of Dec 31, 2009