CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 22,956	$ 3,464
Accounts receivable, net of allowances of $2,168 and $1,129, respectively	599,629	653,069
Contract assets, net of allowances of $537 and $422, respectively	347,082	301,942
Current portion of receivable for insurance claims in excess of deductibles	10,131	9,081
Refundable income taxes	4,392	4,638
Prepaid expenses and other current assets	33,416	42,468
Total current assets	1,017,606	1,014,662
Property and equipment, net of accumulated depreciation of $402,519 and $387,223, respectively	281,901	278,226
Operating lease right-of-use assets	45,322	42,648
Goodwill	115,466	112,983
Intangible assets, net of accumulated amortization of $37,584 and $34,573, respectively	75,048	75,691
Receivable for insurance claims in excess of deductibles	34,245	34,553
Deferred income taxes	6,002	5,734
Investment in joint ventures	4,611	3,730
Other assets	6,781	5,832
Total assets	1,586,982	1,574,059
Current liabilities:
Current portion of long-term debt	4,458	4,363
Current portion of operating lease obligations	12,848	12,141
Current portion of finance lease obligations	915	1,046
Accounts payable	308,191	295,476
Contract liabilities	286,288	321,958
Current portion of accrued self-insurance	26,801	25,883
Accrued income taxes	3,583	196
Other current liabilities	123,308	87,837
Total current liabilities	766,392	748,900
Deferred income tax liabilities	53,614	52,498
Long-term debt	81,623	70,018
Accrued self-insurance	53,577	53,600
Operating lease obligations, net of current maturities	32,446	30,496
Finance lease obligations, net of current maturities	1,632	1,930
Other liabilities	14,464	16,257
Total liabilities	1,003,748	973,699
Commitments and contingencies
Shareholders’ equity:
Preferred stock—$0.01 par value per share; 4,000,000 authorized shares; none issued and outstanding at June 30, 2025 and December 31, 2024	0	0
Common stock—$0.01 par value per share; 100,000,000 authorized shares; 15,522,834 and 16,121,901 shares issued and outstanding at June 30, 2025 and December 31, 2024, respectively	155	161
Additional paid-in capital	156,138	159,133
Accumulated other comprehensive loss	(7,657)	(12,651)
Retained earnings	434,598	453,717
Total shareholders’ equity	583,234	600,360
Total liabilities and shareholders’ equity	$ 1,586,982	$ 1,574,059