CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash Flows from Operating Activities
Net income	$ 60,450	$ 55,364
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	691	91
Deferred income taxes and unrecognized income tax benefits	(3,533)	6,023
Non-cash equity compensation	10,134	10,023
Depreciation and amortization	46,207	34,139
Facilities consolidation reserve		(236)
Amortization of debt issuance costs	984	940
Impairment of long-lived assets	3,801
Gain on divestiture of a business	(4,302)
Other adjustments, net	(2,222)	474
Changes in operating assets and liabilities, net of the effects of acquisitions:
Net contract assets and liabilities	(52,010)	(72,619)
Contract receivables	12,087	(31,770)
Prepaid expenses and other assets	11,893	(11,991)
Operating lease assets and liabilities, net	3,897	(1,305)
Accounts payable	(13,333)	23,394
Accrued salaries and benefits	(8,521)	(13,971)
Accrued subcontractors and other direct costs	(3,353)	9,441
Accrued expenses and other current liabilities	(18,727)	(476)
Income tax receivable and payable	450	(1,667)
Other liabilities	959	742
Net Cash Provided by Operating Activities	45,552	6,596
Cash Flows from Investing Activities
Capital expenditures for property and equipment and capitalized software	(17,876)	(17,323)
Proceeds from working capital adjustments related to prior business acquisition		2,911
Payments for business acquisitions, net of cash acquired	(32,664)	(238,991)
Proceeds from divestiture of a business	47,151
Net Cash Used in Investing Activities	(3,389)	(253,403)
Cash Flows from Financing Activities
Advances from working capital facilities	972,266	1,358,335
Payments on working capital facilities	(995,244)	(1,074,888)
Proceeds from other short-term borrowings	25,394
Repayments of other short-term borrowings	(18,845)
Receipt of restricted contract funds	6,412	13,525
Payment of restricted contract funds	(7,042)	(23,358)
Debt issue costs		(4,852)
Payments of principal portion of finance leases	(1,780)
Proceeds from exercise of options	279	412
Dividends paid	(7,903)	(7,912)
Net payments for stock issuances and buybacks	(20,601)	(21,105)
Payments on business acquisition liabilities		(1,132)
Net Cash (Used in) Provided by Financing Activities	(47,064)	239,025
Effect of Exchange Rate Changes on Cash, Cash Equivalents, and Restricted Cash	(213)	(2,175)
Decrease in Cash, Cash Equivalents, and Restricted Cash	(5,114)	(9,957)
Cash, Cash Equivalents, and Restricted Cash, Beginning of Period	12,968	20,433
Cash, Cash Equivalents, and Restricted Cash, End of Period	7,854	10,476
Supplemental Disclosure of Cash Flow Information
Interest	29,173	13,595
Income taxes	$ 12,604	14,384
Non-cash investing and financing transactions:
Tenant improvements funded by lessor		20,253
Acquisition of property and equipment through finance lease		$ 15,027