Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Assets
Cash	$ 1,543	$ 2,342
Accounts receivable, net of allowance for doubtful accounts of $2,200 in 2020 and $1,883 in 2019	129,433	128,099
Rental equipment, at cost:
Relocatable modular buildings	885,314	868,807
Electronic test equipment	335,520	335,343
Liquid and solid containment tanks and boxes	316,110	316,261
Rental equipment, gross	1,536,944	1,520,411
Less accumulated depreciation	(588,819)	(552,911)
Rental equipment, net	948,125	967,500
Property, plant and equipment, net	134,245	131,047
Prepaid expenses and other assets	46,670	45,356
Intangible assets, net	7,167	7,334
Goodwill	28,197	28,197
Total assets	1,295,380	1,309,875
Liabilities:
Notes payable	249,980	293,431
Accounts payable and accrued liabilities	108,824	109,174
Deferred income	58,555	54,964
Deferred income taxes, net	216,407	218,270
Total liabilities	633,766	675,839
Shareholders’ equity:
Common stock, no par value - Authorized 40,000 shares Issued and outstanding - 24,111 shares as of September 30, 2020 and 24,296 shares as of December 31, 2019	106,079	106,360
Retained earnings	555,555	527,746
Accumulated other comprehensive loss	(20)	(70)
Total shareholders’ equity	661,614	634,036
Total liabilities and shareholders’ equity	$ 1,295,380	$ 1,309,875