CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current assets
Accounts receivable (owned fleet), allowance for doubtful accounts	$ 1,047	$ 680
Rental equipment, accumulated depreciation	330,802	274,333
Intangible assets, accumulated amortization	4,853	4,817
Furniture, fixtures and equipment, accumulated depreciation	2,692	2,019
Cash held by variable interest entities	50,542	26,011
Net investment in direct finance leases held by variable interest entities	346	156
Rental equipment held by variable interest entities, net of accumulated depreciation	77,870	102,100
Liabilities and Stockholders' Equity
Debt held by variable interest entities, current portion	62,744	0
Debt held by variable interest entities, noncurrent portion	$ 69,057	$ 132,419
Stockholders' equity
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	84,000,000	84,000,000
Common stock, shares issued	20,222,243	20,788,277
Common stock, shares outstanding	20,222,243	20,788,277