CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current assets
Cash and cash equivalents	$ 8,917	$ 1,089
Accounts receivable, net of allowances	313,304	303,176
Inventories, net	272,276	243,960
Costs in excess of billings on uncompleted contracts	26,373	22,528
Income taxes receivable	2,437	11,390
Prepaid expenses and other current assets	43,635	31,817
Total current assets	666,942	613,960
Property and equipment, net of accumulated depreciation	286,741	295,978
Deferred income taxes	550	0
Customer relationship intangible assets, net of accumulated amortization	164,191	177,036
Other intangible assets, net of accumulated amortization	3,024	10,900
Goodwill	254,832	254,664
Other long-term assets	18,734	18,601
Total assets	1,395,014	1,371,139
Current liabilities
Accounts payable	165,540	135,632
Accrued expenses and other liabilities	88,786	91,888
Billings in excess of costs on uncompleted contracts	15,691	15,888
Interest payable	5,619	6,882
Current portion of long-term debt and capital lease obligation	11,155	10,129
Current portion of insurance reserves	16,021	17,888
Total current liabilities	302,812	278,307
Insurance reserves	39,184	37,334
Long-term debt	344,827	400,216
Long-term portion of capital lease obligation	20,581	16,495
Deferred income taxes	0	3,021
Other long-term liabilities	7,009	6,834
Total liabilities	714,413	742,207
Stockholders' equity
Preferred stock, $0.01 par value, 50.0 million shares authorized, no shares issued and outstanding at December 31, 2016 and December 31, 2015	0	0
Common stock, $0.01 par value, 300.0 million shares authorized, 66.8 million and 65.4 million shares issued, and 66.7 million and 65.3 million outstanding at December 31, 2016 and December 31, 2015, respectively	668	654
Additional paid-in capital	649,280	626,402
Retained earnings	33,182	2,302
Treasury stock, at cost, 0.1 million and less than 0.1 million shares at December 31, 2016 and December 31, 2015, respectively	(2,529)	(426)
Total stockholders' equity	680,601	628,932
Total liabilities and stockholders' equity	$ 1,395,014	$ 1,371,139