v2.4.0.8
Consolidated Statements Of Cash Flows (USD $)
In Thousands, unless otherwise specified
 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Cash flows from operating activities:    
Net income $ 564,692 $ 190,009
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 255,795 221,940
Non-cash compensation expense 32,464 18,113
Impairment loss 8,306 0
Income from unconsolidated joint ventures (57,504) (32,912)
Gain on Consolidation of Joint Ventures (387,801) 0
Distributions of net cash flow from operations of unconsolidated joint ventures 25,689 20,190
Gains from investments in securities (916) (615)
Non-cash portion of interest expense 20,120 21,893
Settlement of accreted debt discount on repurchases of unsecured exchangeable senior notes (56,532) (68,760)
Gains from early extinguishments of debt (264) (1,196)
Gain (Loss) on Disposition of Real Estate, Discontinued Operations 0 (36,877)
Gain on forgiveness of debt from discontinued operations (20,182) 0
Impairment loss from discontinued operations 3,241 0
Change in assets and liabilities:    
Cash held in escrows 2,687 8,067
Tenant and other receivables, net (7,018) 30,120
Accrued rental income, net (29,127) (39,524)
Prepaid expenses and other assets 17,708 38,703
Accounts payable and accrued expenses 1,399 (2,710)
Accrued interest payable 2,022 (3,917)
Other liabilities (20,086) (7,589)
Tenant leasing costs (19,855) (23,855)
Total adjustments (229,854) 141,071
Net cash provided by operating activities 334,838 331,080
Cash flows from investing activities:    
Acquisitions of real estate (522,900) (621,359)
Construction in progress (181,056) (152,548)
Building and other capital improvements (23,681) (21,569)
Tenant improvements (55,988) (72,786)
Proceeds from the sales of real estate 39,320 61,963
Cash recorded upon consolidation 79,468 0
Issuance of notes receivable 12,491 (1,974)
Capital contributions to unconsolidated joint ventures 0 (325)
Capital distributions from unconsolidated joint ventures 201,182 3,057
Investments in securities, net (1,138) (873)
Net cash used in investing activities (452,302) (806,414)
Cash flows from financing activities:    
Repayments of mortgage notes payable (79,865) (219,865)
Proceeds from unsecured senior notes 1,194,753 997,790
Redemption/repurchase of unsecured exchangeable senior notes (393,468) (507,434)
Deferred financing costs (8,546) (7,758)
Proceeds from Issuance of Preferred Stock and Preference Stock 193,920  
Net proceeds from ATM stock issuances 0 247,186
Net proceeds from equity transactions (694) 973
Dividends and distributions (223,451) (185,269)
Contributions from noncontrolling interest in property partnerships 6,018 0
Distributions to noncontrolling interest in property partnerships (4,450) (1,500)
Net cash provided by (sued in) financing activities 684,217 324,123
Net decrease in cash and cash equivalents 566,753 (151,211)
Cash and cash equivalents, beginning of period 1,041,978 1,823,208
Cash and cash equivalents, end of period 1,608,731 1,671,997
Supplemental disclosures:    
Cash paid for interest 271,177 276,494
Interest capitalized 32,854 21,278
Non-cash investing and financing activities:    
Additions to real estate included in accounts payable and accrued expenses 4,746 3,225
Real estate and realted intangibles recorded upon consolidation 3,356,000 0
Debt recorded upon consolidation 2,056,000 0
Working capital recorded upon consolidation 91,280 0
Noncontrolling interest recorded upon consolidation 483,488 0
investment in unconsolidated joint venture elminated upon consolidation 361,808 0
Mortgage note payable extinguished through foreclosure 25,000 0
Real estate transferred upon foreclosure 7,508 0
Land improvements contributed by noncontrolling property partnership 4,546 0
Dividends and distributions declared but not paid 112,425 93,353
issuance of common stock in connection with the exchange of exchangeable senior notes 43,834 0
Conversions of noncontrolling interests to stockholders' equity 10,309 6,831
Conversion of redeemable preferred units to common units 0 4,115
Issuance of restricted securities to employees and directors $ 30,077 $ 25,955