CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Operating Activities
Net income	$ 36,238	$ 22,395
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	82,020	77,186
Equity in losses of real estate ventures	1,236	338
Equity compensation expense	794	455
Accretion of fair market value adjustment of debt	(504)	(803)
Changes in other operating accounts:
Restricted cash	272	190
Other assets	(3,630)	(3,896)
Accounts payable and accrued expenses	5,891	3,306
Other liabilities	1,660	1,517
Net cash provided by operating activities	123,977	100,688
Investing Activities
Acquisitions of storage facilities	(235,577)	(85,627)
Additions and improvements to storage facilities	(13,261)	(11,874)
Development costs	(94,496)	(37,026)
Investment in real estate ventures	(7,586)
Cash distributed from real estate ventures	3,716	3,000
Fundings of notes receivable		(4,100)
Change in restricted cash	137	(63)
Net cash used in investing activities	(347,067)	(135,690)
Proceeds from:
Revolving credit facility	655,100	378,700
Principal payments on:
Revolving credit facility	(505,100)	(295,100)
Mortgage loans and notes payable	(13,659)	(55,451)
Loan procurement costs		(2,283)
Proceeds from issuance of common shares, net	88,603	56,478
Exercise of stock options	12,199	9,359
Contributions from noncontrolling interests in subsidiaries	4,396	178
Distributions paid to common shareholders	(73,984)	(52,887)
Distributions paid to preferred shareholders	(3,004)	(3,004)
Distributions paid to noncontrolling interests in Operating Partnership	(907)	(722)
Net cash provided by financing activities	163,644	35,268
Change in cash and cash equivalents	(59,446)	266
Cash and cash equivalents at beginning of period	62,869	2,901
Cash and cash equivalents at end of period	3,423	3,167
Supplemental Cash Flow and Noncash Information
Cash paid for interest, net of interest capitalized	26,879	23,893
Supplemental disclosure of noncash activities:
Restricted cash - acquisition of storage facilities	(22,019)
Accretion of liability, net	4,174	7,427
Derivative valuation adjustment	359	451
Foreign currency translation adjustment		(69)
Mortgage loan assumptions	$ 41,513	$ 2,695