CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 91,254	$ 200,512
Accounts receivable, net	597,195	471,656
Contract assets	484,724	423,659
Prepaid expenses and other current assets	144,774	86,263
Total current assets	1,317,947	1,182,090
Property and equipment, net	462,801	433,279
Operating lease assets	139,037	158,609
Deferred tax assets	1,286	1,307
Intangible assets, net	176,077	171,320
Goodwill	591,646	581,664
Other long-term assets	25,036	15,058
Total assets	2,713,830	2,543,327
Current liabilities:
Accounts payable	345,476	273,463
Contract liabilities	250,225	240,412
Accrued liabilities	227,319	174,821
Dividends payable	3,192	3,192
Current portion of long-term debt	63,116	67,230
Total current liabilities	889,328	759,118
Long-term debt, net of current portion	637,914	594,232
Noncurrent operating lease liabilities, net of current portion	79,629	98,059
Deferred tax liabilities	38,501	38,510
Other long-term liabilities	35,660	63,353
Total liabilities	1,681,032	1,553,272
Commitments and contingencies (See Note 14)
Stockholders' equity
Common stock-$.0001 par value; 90,000,000 shares authorized; 53,209,461 and 53,194,585 issued and outstanding at June 30, 2022 and December 31, 2021, respectively	6	6
Additional paid-in capital	262,394	261,918
Retained earnings	769,523	727,433
Accumulated other comprehensive income	875	698
Total stockholders' equity	1,032,798	990,055
Total liabilities and stockholders' equity	$ 2,713,830	$ 2,543,327