Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Cash flows from operating activities:
Net income	$ 18,879	$ 44,904
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation	27,898	26,897
Amortization	7,731	7,681
Stock-based compensation expense	15,077	10,740
Provision for doubtful accounts	0	671
Deferred income taxes	(1,442)	(5,119)
Gain on business divestiture	(2,351)	0
Loss (gain) on the sale of property, plant and equipment	44	(7)
Changes in operating assets and liabilities:
Accounts receivable	38,744	76,479
Contract assets	(31,429)	(11,559)
Inventories	48,547	102,540
Prepaid expenses and other assets	(20,926)	(8,888)
Accounts payable	19,566	(16,107)
Advance payments from customers	(19,449)	(59,533)
Accrued liabilities	(12,365)	(28,127)
Operating leases	1,908	1,192
Income taxes	(25,144)	1,545
Net cash provided by operating activities	65,288	143,309
Cash flows from investing activities:
Additions to property, plant and equipment	(25,175)	(22,555)
Additions to capitalized purchased software	(2,779)	(1,666)
Cash received from business divestiture	5,056	0
Proceeds from the disposal of property, plant and equipment	89	2,004
Other, net	(1)	(1,521)
Net cash used in investing activities	(22,810)	(23,738)
Cash flows from financing activities:
Borrowings under credit agreement	733,594	455,000
Principal payments on credit agreement	(772,578)	(507,461)
Dividends paid	(18,360)	(17,794)
Employee taxes paid with shares withheld	(7,152)	(6,195)
Proceeds from stock options exercised	4	482
Debt issuance costs	(2,289)	0
Principal payments on finance leases	(142)	(135)
Share repurchases	(25,994)	(5,101)
Net cash used in financing activities	(92,917)	(81,204)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	8,473	2,843
Net (decrease) increase in cash, cash equivalents and restricted cash	(41,966)	41,210
Cash, cash equivalents and restricted cash at the beginning of the year	328,027	283,213
Cash, cash equivalents and restricted cash at the end of the period	286,061	324,423
Supplemental cash flow information:
Income taxes paid, net	58,974	38,807
Interest paid	15,461	21,806
Property, Plant and Equipment [Member]
Non-cash investing activities:
Unpaid purchases at the end of the period	3,978	3,088
Capitalized Purchased Software Costs [Member]
Non-cash investing activities:
Unpaid purchases at the end of the period	$ 2,053	$ 1,320