Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Cash Flows from Operating Activities
Net income	$ 91,588	$ 110,170	$ 82,612
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	(429)	1,673	1,164
Deferred income taxes and unrecognized income tax benefits	5,078	(24,336)	(17,634)
Non-cash equity compensation	17,686	16,722	14,861
Depreciation and amortization	58,147	53,476	60,738
Gain on divestiture of a business		(2,009)	(7,590)
Other operating adjustments, net	2,325	4,647	8,294
Changes in operating assets and liabilities, net of the effect of acquisitions:
Net contract assets and liabilities	25,369	14,668	(38,422)
Contract receivables	22,031	(49,538)	20,939
Prepaid expenses and other assets	2,944	3,496	18,579
Operating lease assets and liabilities, net	(8,366)	(4,755)	3,544
Accounts payable	(36,827)	24,152	(1,489)
Accrued salaries and benefits	(10,843)	18,048	2,175
Accrued subcontractors and other direct costs	(1,952)	4,353	(269)
Accrued expenses and other current liabilities	(13,019)	8,361	(4,757)
Income tax receivable and payable	(11,694)	(5,391)	9,277
Other liabilities	(168)	(2,193)	361
Net Cash Provided by Operating Activities	141,870	171,544	152,383
Cash Flows from Investing Activities
Payments for purchase of property and equipment and capitalized software	(21,659)	(21,430)	(22,337)
Payments for business acquisitions, net of cash acquired		(55,007)	(32,664)
Proceeds from divestiture of a business		1,985	51,328
Other investing, net	148	(353)
Net Cash Used in Investing Activities	(21,511)	(74,805)	(3,673)
Cash Flows from Financing Activities
Advances from working capital facilities	1,348,036	1,227,926	1,245,198
Payments on working capital facilities	(1,359,527)	(1,247,791)	(1,372,474)
Proceeds from other short-term borrowings	20,206	62,080	48,532
Repayments of other short-term borrowings	(24,768)	(66,408)	(41,653)
Receipt of restricted contract funds		1,251	7,672
Payment of restricted contract funds		(3,267)	(8,084)
Dividends paid	(10,356)	(10,507)	(10,537)
Net payments for stockholder issuances and share repurchases	(55,286)	(47,767)	(19,083)
Other financing, net	(2,612)	(2,415)	(2,159)
Net Cash Used in Financing Activities	(84,307)	(86,898)	(152,588)
Effect of Exchange Rate Changes on Cash, Cash Equivalents, and Restricted Cash	1,455	(473)	359
Net Change in Cash, Cash Equivalents, and Restricted Cash	37,507	9,368	(3,519)
Cash, Cash Equivalents, and Restricted Cash, Beginning of Period	18,817	9,449	12,968
Cash, Cash Equivalents, and Restricted Cash, End of Period	56,324	18,817	9,449
Supplemental disclosure of cash flow information:
Interest	$ 29,278	$ 30,046	34,093
Non-cash investing and financing transactions:
Tenant improvements funded by lessor			568
Acquisition of property and equipment through finance lease			$ 337