Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
ASSETS
Cash	$ 651	$ 1,612
Accounts Receivable, net of allowance for doubtful accounts of $2,001 in 2013 and $3,000 in 2012	92,819	92,256
Rental Equipment, at cost:
Relocatable Modular Buildings	577,898	551,101
Electronic Test Equipment	270,164	266,934
Liquid and Solid Containment Tanks and Boxes	277,972	254,810
Rental Equipment, gross	1,126,034	1,072,845
Less Accumulated Depreciation	(372,224)	(353,992)
Rental Equipment, net	753,810	718,853
Property, Plant and Equipment, net	102,977	101,031
Prepaid Expenses and Other Assets	20,610	19,507
Intangible Assets, net	10,868	11,487
Goodwill	27,700	27,700
Total Assets	1,009,435	972,446
Liabilities:
Notes Payable	280,902	302,000
Accounts Payable and Accrued Liabilities	68,811	52,220
Deferred Income	27,143	26,924
Deferred Income Taxes, net	236,885	226,564
Total Liabilities	613,741	607,708
Shareholders' Equity:
Common Stock, no par value - Authorized - 40,000 shares Issued and Outstanding - 25,686 shares in 2013 and 24,931 shares in 2012	103,239	85,342
Retained Earnings	292,455	279,396
Total Shareholders' Equity	395,694	364,738
Total Liabilities and Shareholders' Equity	$ 1,009,435	$ 972,446