Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Assets
Cash	$ 1,103	$ 1,167
Accounts receivable, net of allowance for doubtful accounts of $2,087 in 2015 and $2,038 in 2014	95,263	101,294
Income taxes receivable	11,000
Rental equipment, at cost:
Relocatable modular buildings	736,875	664,340
Electronic test equipment	262,945	261,995
Liquid and solid containment tanks and boxes	310,263	303,303
Rental equipment, gross	1,310,083	1,229,638
Less accumulated depreciation	(440,482)	(403,888)
Rental equipment, net	869,601	825,750
Property, plant and equipment, net	109,753	108,628
Prepaid expenses and other assets	28,716	41,424
Intangible assets, net	9,465	10,336
Goodwill	27,808	27,808
Total assets	1,152,709	1,116,407
Liabilities:
Notes payable	381,441	322,478
Accounts payable and accrued liabilities	71,942	71,357
Deferred income	36,288	29,139
Deferred income taxes, net	283,351	268,902
Total liabilities	$ 773,022	$ 691,876
Commitments and contingencies (Note 7)
Shareholders’ equity:
Common stock, no par value — authorized 40,000 shares Issued and outstanding — 23,851 shares as of December 31, 2015 and 26,051 shares as of December 31, 2014	$ 101,046	$ 106,469
Retained earnings	278,708	318,164
Accumulated other comprehensive loss	(67)	(102)
Total shareholders’ equity	379,687	424,531
Total liabilities and shareholders’ equity	$ 1,152,709	$ 1,116,407