Annual report pursuant to Section 13 and 15(d)

Segment Information (Details)

v2.4.0.6
Segment Information (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2010
Sep. 30, 2010
Jun. 30, 2010
Mar. 31, 2010
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Segment Reporting Information [Line Items]                      
Number of Reportable Segments 4               4    
Real estate rental revenue $ 76,708 [1],[2] $ 71,931 [1],[2] $ 71,684 [1],[2] $ 69,204 [1],[2] $ 65,364 [1],[2] $ 65,032 [1],[2] $ 64,087 [1],[2] $ 64,007 [1],[2] $ 289,527 $ 258,490 $ 256,549
Real estate expenses                 97,192 86,660 89,289
Net operating income                 192,335 171,830 167,260
Depreciation and amortization                 (93,297) (80,066) (77,549)
Interest expense                 (66,473) (67,229) (72,694)
General and administrative                 (15,728) (14,406) (13,118)
Acquisition costs                 (3,607) (1,161) (788)
Other income (expense)                 1,144 1,193 1,205
Real estate impairment                 (14,526) 0 0
Loss on extinguishment of debt, net                 (976) (9,176) 5,336
Gain from non-disposal activities                 0 7 71
Gain (loss) from discontinued operations                 10,153 14,968 17,877
Gain on sale of real estate                 97,491 21,599 13,348
Income tax benefit (expense)                 (1,138) 0 0
Net income 31,098 [1],[2] 63,036 [1],[2] 6,556 [1],[2] 4,688 [1],[2] 10,615 [1],[2] 6,658 [1],[2] 15,021 [1],[2] 5,265 [1],[2] 105,378 37,559 40,948
Less: Net income attributable to noncontrolling interests in subsidiaries                 (494) (133) (203)
Net income attributable to the controlling interests 30,689 [1],[2] 63,008 [1],[2] 6,522 [1],[2] 4,665 [1],[2] 10,591 [1],[2] 6,625 [1],[2] 14,994 [1],[2] 5,216 [1],[2] 104,884 37,426 40,745
Capital expenditures                 33,436 25,437 27,688
Total assets 2,120,758       2,167,881       2,120,758 2,167,881 2,045,225
Office [Member]
                     
Segment Reporting Information [Line Items]                      
Percentage of Real Estate Rental Revenue by Segment                 0.49 0.48 0.48
Percentage of Real Estate Assets                 0.53 0.48  
Real estate rental revenue                 142,870 123,860 123,347
Real estate expenses                 48,960 42,392 43,897
Net operating income                 93,910 81,468 79,450
Capital expenditures                 21,065 13,983 14,200
Total assets 1,118,074       938,638       1,118,074 938,638 926,433
Medical Office [Member]
                     
Segment Reporting Information [Line Items]                      
Percentage of Real Estate Rental Revenue by Segment                 0.16 0.17 0.18
Percentage of Real Estate Assets                 0.17 0.19  
Real estate rental revenue                 45,257 45,028 44,911
Real estate expenses                 14,242 14,715 15,218
Net operating income                 31,015 30,313 29,693
Capital expenditures                 5,654 4,986 6,613
Total assets 347,735       353,508       347,735 353,508 360,220
Retail [Member]
                     
Segment Reporting Information [Line Items]                      
Percentage of Real Estate Rental Revenue by Segment                 0.17 0.16 0.16
Percentage of Real Estate Assets                 0.17 0.17  
Real estate rental revenue                 50,421 41,003 41,821
Real estate expenses                 14,273 10,310 10,680
Net operating income                 36,148 30,693 31,141
Capital expenditures                 2,922 1,982 1,270
Total assets 365,164       313,003       365,164 313,003 225,548
Multifamily [Member]
                     
Segment Reporting Information [Line Items]                      
Percentage of Real Estate Rental Revenue by Segment                 0.18 0.19 0.18
Percentage of Real Estate Assets                 0.13 0.16  
Real estate rental revenue                 50,979 48,599 46,470
Real estate expenses                 19,717 19,243 19,494
Net operating income                 31,262 29,356 26,976
Capital expenditures                 2,823 2,387 2,287
Total assets 247,170       228,769       247,170 228,769 240,442
Industrial/Flex [Member]
                     
Segment Reporting Information [Line Items]                      
Real estate rental revenue                   0 0
Real estate expenses                   0 0
Net operating income                   0 0
Capital expenditures                 351 1,707 2,967
Total assets 0       225,206       0 225,206 251,986
Corporate And Other [Member]
                     
Segment Reporting Information [Line Items]                      
Real estate rental revenue                 0 0 0
Real estate expenses                 0 0 0
Net operating income                 0 0 0
Capital expenditures                 621 392 351
Total assets $ 42,615       $ 108,757       $ 42,615 $ 108,757 $ 40,596
[1] With regard to per share calculations, the sum of the quarterly results may not equal full year results due to rounding.
[2] The prior quarter results have been restated to conform to the current quarter presentation. Specifically, results related to properties sold or held for sale have been reclassified into discontinued operations.