CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 286,221	$ 165,496
Accounts Receivable, after Allowance for Credit Loss, Current	393,735	325,741
Inventories	413,031	331,969
Contract assets	36,422	32,125
Income taxes receivable	0	7,504
Prepaid expenses and other current assets	76,239	66,818
Total current assets	1,205,648	929,653
Property and equipment, net of accumulated depreciation	366,444	345,466
Operating lease right-of-use assets	131,868	139,907
Customer relationship intangible assets, net of accumulated amortization	170,200	185,049
Other intangible assets, net of accumulated amortization	385	580
Goodwill	295,390	297,146
Other long-term assets	7,599	8,300
Total assets	2,177,534	1,906,101
Current liabilities
Accounts payable	300,075	189,644
Accrued expenses and other liabilities	116,285	117,825
Contract liabilities	44,980	31,094
Income taxes payable	10,395	0
Interest payable	9,572	4,759
Current portion: Long-term debt and finance lease obligations	3,210	5,577
Current portion: Operating lease liabilities	27,635	26,147
Current portion: Insurance reserves	16,746	16,328
Total current liabilities	528,898	391,374
Insurance reserves	43,287	43,536
Long-term debt	346,659	346,032
Long-term portion of finance lease obligations	4,689	6,959
Long-term portion of operating lease liabilities	113,572	120,832
Deferred income taxes	22,613	15,195
Other long-term liabilities	15,309	661
Total liabilities	1,075,027	924,589
Commitments and contingencies (Note 9)
Stockholders’ equity
Preferred Stock, Value, Issued	0	0
Common Stock, Value, Issued	690	683
Additional paid-in capital	702,045	687,255
Retained earnings	430,736	320,190
Treasury Stock, Value	(30,964)	(26,616)
Total stockholders’ equity	1,102,507	981,512
Total liabilities and stockholders’ equity	$ 2,177,534	$ 1,906,101