FUTURE MINIMUM LEASE RENTALS (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015
Future minimum lease rentals
2015 (Nine months ending December 31, 2015)	$ 117,818
2016	139,621
2017	129,176
2018	107,835
2019	95,343
Thereafter	314,662
Total	904,455
Governmental Tenants
Future minimum lease rentals
2015 (Nine months ending December 31, 2015)	41,272
2016	47,190
2017	41,992
2018	39,605
2019	38,207
Thereafter	118,522
Total	326,788
Other Tenants
Future minimum lease rentals
2015 (Nine months ending December 31, 2015)	76,546
2016	92,431
2017	87,184
2018	68,230
2019	57,136
Thereafter	196,140
Total	$ 577,667

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Future minimum rental payments in aggregate as of the balance sheet date under operating leases.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 4

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6454179&loc=d3e41551-112718

+ Details

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- Definition

Future rental payments receivable within the fifth year from the balance sheet date under an operating lease.

+ References

+ Details

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- Definition

Future rental payments receivable within the fourth year from the balance sheet date under an operating lease.

+ References

+ Details

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- Definition

Future rental payments receivable within the third year from the balance sheet date under an operating lease.

+ References

+ Details

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- Definition

Future rental payments receivable within the second year from the balance sheet date under an operating lease.

+ References

+ Details

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- Definition

Amount of required minimum rental payments receivable in the remainder of the fiscal year following the latest fiscal year ended for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

No definition available.

+ Details

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- Definition

Future minimum lease payments receivable under operating leases for periods greater than five years following the balance sheet date.

+ References

+ Details

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