CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 51,040	$ 82,092
Accounts receivable, net of allowances of $2,073 and $2,441, respectively	472,543	375,353
Contract assets, net of allowances of $499 and $385, respectively	300,615	225,075
Current portion of receivable for insurance claims in excess of deductibles	9,325	11,078
Refundable income taxes	8,944	9,228
Prepaid expenses and other current assets	47,824	45,564
Total current assets	890,291	748,390
Property and equipment, net of accumulated depreciation of $351,753 and $322,128, respectively	233,175	196,092
Operating lease right-of-use assets	30,544	20,971
Goodwill	115,847	66,065
Intangible assets, net of accumulated amortization of $25,439 and $16,779, respectively	87,557	49,054
Receivable for insurance claims in excess of deductibles	34,210	32,443
Investment in joint venture	3,697	3,978
Other assets	3,537	4,099
Total assets	1,398,858	1,121,092
Current liabilities
Current portion of long-term debt	5,074	1,039
Current portion of operating lease obligations	9,711	7,765
Current portion of finance lease obligations	1,127	0
Accounts payable	315,323	200,744
Contract liabilities	227,055	167,931
Current portion of accrued self-insurance	28,752	24,242
Accrued income taxes	0	2,021
Other current liabilities	79,918	94,857
Total current liabilities	666,960	498,599
Deferred income tax liabilities	45,775	24,620
Long-term debt	35,479	3,464
Accrued self-insurance	51,287	50,816
Operating lease obligations, net of current maturities	20,845	13,230
Finance lease obligations, net of current maturities	2,313	0
Other liabilities	15,999	11,261
Total liabilities	838,658	601,990
Commitments and contingencies
Shareholders’ equity
Preferred stock – $0.01 par value per share; 4,000,000 authorized shares; none issued and outstanding at December 31, 2022 and December 31, 2021	0	0
Common stock – $0.01 par value per share; 100,000,000 authorized shares; 16,563,767 and 16,870,636 shares issued and outstanding at December 31, 2022 and December 31, 2021, respectively	165	168
Additional paid-in capital	161,427	163,754
Accumulated other comprehensive income (loss)	(6,300)	173
Retained earnings	404,908	355,007
Total shareholders’ equity	560,200	519,102
Total liabilities and shareholders’ equity	$ 1,398,858	$ 1,121,092