Consolidated Balance Sheets (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
ASSETS    
Land and land improvements $ 1,187,786 $ 1,189,760
Building and improvements 5,347,120 5,343,908
Less accumulated depreciation (1,221,059) (1,182,569)
Operating real estate 5,313,847 5,351,099
Development in progress 269,518 277,411
Land held for development 272,349 269,059
Net real estate 5,855,714 5,897,569
Cash and cash equivalents 38,755 69,346
Restricted cash 18,911 20,325
Accounts receivable 19,039 15,481
Deferred rent receivable 113,129 107,909
Deferred financing and leasing costs, net of accumulated amortization (2015, $173,076; 2014, $169,468) 202,231 206,286
Investments in and advances to unconsolidated joint ventures 215,403 208,832
Assets held for sale 0 8,389
Prepaid expenses and other assets 101,322 91,399
Total assets 6,564,504 6,625,536
LIABILITIES    
Mortgage loans 484,584 487,301
Unsecured notes 2,607,874 2,509,094
Credit facility 50,000 167,000
Accounts payable 51,783 52,043
Accrued interest 36,691 24,513
Dividend and distributions payable 72,512 72,253
Other liabilities 199,311 219,418
Total liabilities 3,502,755 3,531,622
Noncontrolling interest - operating partnership - 301,483 preferred units outstanding as of March 31, 2015 and December 31, 2014 7,537 7,537
EQUITY    
Common shares of beneficial interest, $.001 par value, 283,987,000 shares authorized; 150,367,813 (includes 1,249,909 in treasury) and 149,807,179 (includes 1,249,909 in treasury) shares issued and outstanding as of March 31, 2015 and December 31, 2014, respectively 150 150
Additional paid-in capital 3,760,834 3,740,594
Accumulated other comprehensive loss (17,346) (6,252)
Distributions in excess of net income (694,748) (654,869)
Common shares in treasury, at cost, 1,249,909 shares as of March 31, 2015 and December 31, 2014 (51,951) (51,951)
Total Liberty Property Trust shareholders' equity 2,996,939 3,027,672
Noncontrolling interest - operating partnership    
Noncontrolling interest - operating partnerships 53,354 54,786
Noncontrolling interest - consolidated joint ventures 3,919 3,919
Total equity 3,054,212 3,086,377
Total liabilities, noncontrolling interest - operating partnership and equity 6,564,504 6,625,536
Liberty Property Limited Partnership [Member]    
ASSETS    
Land and land improvements 1,187,786 1,189,760
Building and improvements 5,347,120 5,343,908
Less accumulated depreciation (1,221,059) (1,182,569)
Operating real estate 5,313,847 5,351,099
Development in progress 269,518 277,411
Land held for development 272,349 269,059
Net real estate 5,855,714 5,897,569
Cash and cash equivalents 38,755 69,346
Restricted cash 18,911 20,325
Accounts receivable 19,039 15,481
Deferred rent receivable 113,129 107,909
Deferred financing and leasing costs, net of accumulated amortization (2015, $173,076; 2014, $169,468) 202,231 206,286
Investments in and advances to unconsolidated joint ventures 215,403 208,832
Assets held for sale 0 8,389
Prepaid expenses and other assets 101,322 91,399
Total assets 6,564,504 6,625,536
LIABILITIES    
Mortgage loans 484,584 487,301
Unsecured notes 2,607,874 2,509,094
Credit facility 50,000 167,000
Accounts payable 51,783 52,043
Accrued interest 36,691 24,513
Dividend and distributions payable 72,512 72,253
Other liabilities 199,311 219,418
Total liabilities 3,502,755 3,531,622
Noncontrolling interest - operating partnership - 301,483 preferred units outstanding as of March 31, 2015 and December 31, 2014 7,537 7,537
EQUITY    
General partner’s equity - 149,117,904 (net of 1,249,909 treasury units) and 148,557,270 (net of 1,249,909 treasury units) common units outstanding as of March 31, 2015 and December 31, 2014, respectively 2,996,939 3,027,672
Limited partners' equity 53,354 54,786
Noncontrolling interest - operating partnership    
Noncontrolling interest - consolidated joint ventures 3,919 3,919
Total equity 3,054,212 3,086,377
Total liabilities, noncontrolling interest - operating partnership and equity $ 6,564,504 $ 6,625,536