Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
ASSETS
Cash and cash equivalents	$ 45,769	$ 31,481
Real estate facilities, at cost:
Land	827,092	827,092
Buildings and improvements	2,355,624	2,346,958
Gross real estate investment property	3,182,716	3,174,050
Accumulated depreciation	(1,061,960)	(1,035,387)
Net real estate investment property	2,120,756	2,138,663
Land and building held for development	24,618	23,990
Total real estate investments	2,145,374	2,162,653
Rent receivable	8,184	5,248
Deferred rent receivable	27,088	25,903
Other assets	7,790	13,274
Total assets	2,234,205	2,238,559
LIABILITIES AND EQUITY
Accrued and other liabilities	71,014	73,919
Mortgage notes payable	250,000	250,000
Total liabilities	321,014	323,919
Commitments and contingencies
PS Business Parks, Inc.'s shareholders' equity:
Preferred stock, $0.01 par value, 50,000,000 shares authorized, 39,800 shares issued and outstanding at March 31, 2014 and December 31, 2013	995,000	995,000
Common stock, $0.01 par value, 100,000,000 shares authorized, 26,896,136 and 26,849,822 shares issued and outstanding at March 31, 2014 and December 31, 2013, respectively	267	267
Paid-in capital	701,908	699,314
Cumulative net income	1,096,073	1,070,975
Cumulative distributions	(1,076,180)	(1,047,615)
Total PS Business Parks, Inc.'s shareholders' equity	1,717,068	1,717,941
Noncontrolling interests:
Common units	196,123	196,699
Total noncontrolling interests	196,123	196,699
Total equity	1,913,191	1,914,640
Total liabilities and equity	$ 2,234,205	$ 2,238,559