Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Investment in storage facilities:
Land	$ 456,008	$ 397,642
Building, equipment, and construction in progress	1,940,430	1,780,341
Real estate investment property, at cost, total	2,396,438	2,177,983
Less: accumulated depreciation	(437,466)	(411,701)
Investment in storage facilities, net	1,958,972	1,766,282
Cash and cash equivalents	6,617	8,543
Accounts receivable	6,165	5,758
Receivable from unconsolidated joint ventures	811	583
Investment in unconsolidated joint ventures	57,580	57,803
Prepaid expenses	5,740	6,533
Other assets	9,067	9,298
Total Assets	2,044,952	1,854,800
Liabilities
Line of credit	96,000	49,000
Term notes	750,000	750,000
Accounts payable and accrued liabilities	37,259	43,551
Deferred revenue	7,675	7,290
Fair value of interest rate swap agreements	14,892	13,341
Mortgages payable	2,061	2,127
Total Liabilities	907,887	865,309
Noncontrolling redeemable Operating Partnership Units at redemption value	15,742	13,622
Shareholders' Equity
Common stock $.01 par value, 100,000,000 shares authorized, 35,833,639 shares outstanding at June 30, 2015 (34,105,955 at December 31, 2014)	370	353
Additional paid-in capital	1,331,662	1,183,388
Dividends in excess of net income	(168,963)	(167,692)
Accumulated other comprehensive loss	(14,571)	(13,005)
Treasury stock at cost, 1,171,886 shares	(27,175)	(27,175)
Total Shareholders' Equity	1,121,323	975,869
Total Liabilities and Shareholders' Equity	$ 2,044,952	$ 1,854,800