CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Current assets
Allowance for doubtful accounts (owned fleet)	$ 1,059	$ 794
Accumulated depreciation on container rental equipment	161,114	147,654
Accumulated depreciation on furniture, fixtures and equipment	1,314	1,254
Accumulated amortization on intangible assets	7,637	7,447
Cash attributable to variable interest entities	6,441	3,695
Rental equipment attributable to variable interest entities, net of accumulated depreciation	79,402	62,286
Liabilities and Stockholders' Equity
Collateralized financing obligations	$ 95,140	$ 75,200
Stockholders' equity
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	84,000,000	84,000,000
Common stock, shares issued (in shares)	22,143,690	22,052,529
Common stock, shares outstanding (in shares)	22,143,690	22,052,529