Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Assets
Cash	$ 2,290	$ 1,508
Accounts receivable, net of allowance for doubtful accounts of $1,883 in 2019 and 2018	138,114	121,016
Rental equipment, at cost:
Relocatable modular buildings	865,254	817,375
Electronic test equipment	321,677	285,052
Liquid and solid containment tanks and boxes	315,838	313,573
Rental equipment, gross	1,502,769	1,416,000
Less accumulated depreciation	(544,159)	(514,985)
Rental equipment, net	958,610	901,015
Property, plant and equipment, net	127,977	126,899
Prepaid expenses and other assets	43,553	31,816
Intangible assets, net	7,554	7,254
Goodwill	28,125	27,808
Total assets	1,306,223	1,217,316
Liabilities:
Notes payable	301,469	298,564
Accounts payable and accrued liabilities	111,320	90,844
Deferred income	60,775	49,709
Deferred income taxes, net	215,944	206,664
Total liabilities	689,508	645,781
Shareholders’ equity:
Common stock, no par value - Authorized 40,000 shares Issued and outstanding - 24,285 shares as of September 30, 2019 and 24,182 shares as of December 31, 2018	106,033	103,801
Retained earnings	510,702	467,783
Accumulated other comprehensive loss	(20)	(49)
Total shareholders’ equity	616,715	571,535
Total liabilities and shareholders’ equity	$ 1,306,223	$ 1,217,316