Condensed Consolidated Statements of Equity - USD ($) shares in Thousands, $ in Thousands		Total	Cross currency swap	Interest rate swap	Total	Total Cross currency swap	Total Interest rate swap	Common Stock	Additional Paid-in Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) Cross currency swap	Accumulated Other Comprehensive Income (Loss) Interest rate swap	Noncontrolling Interest
Balance (in shares) at Dec. 31, 2023								60,359
Balance at the start of the period at Dec. 31, 2023		$ 2,440,987			$ 2,315,427			$ 60	$ 1,614,769	$ (17,964)	$ 719,894	$ (1,332)			$ 125,560
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation		4,769			4,769				4,769
Exercise of stock-based awards by employees and directors (in shares)	[1]							63
Exercise of stock-based awards by employees and directors	[1]	55			55				55
Cash paid to noncontrolling interest		(2,587)													(2,587)
Cash dividend declared		(7,243)			(7,243)						(7,243)
Net income		40,511			38,587						38,587				1,924
Other comprehensive income (loss), net of related taxes:
Currency translation adjustments		(2,163)			(1,701)							(1,701)			(462)
Change in unrealized gains or losses in respect of the Company's share in derivatives instruments of an unconsolidated investment that qualifies as a cash flow hedge		510			510							510
Change in unrealized gains or losses in respect of a cross-currency swap / interest rate swap derivative instrument that qualifies as a cash flow hedge			$ 561	$ 1,066		$ 561	$ 1,066						$ 561	$ 1,066
Other		53			53							53
Balance (in shares) at Mar. 31, 2024								60,422
Balance at the end of the period at Mar. 31, 2024		2,476,519			2,352,084			$ 60	1,619,593	(17,964)	751,238	(843)			124,435
Balance (in shares) at Dec. 31, 2023								60,359
Balance at the start of the period at Dec. 31, 2023		2,440,987			2,315,427			$ 60	1,614,769	(17,964)	719,894	(1,332)			125,560
Other comprehensive income (loss), net of related taxes:
Currency translation adjustments		2,485
Change in unrealized gains or losses in respect of the Company's share in derivatives instruments of an unconsolidated investment that qualifies as a cash flow hedge		(924)
Change in unrealized gains or losses in respect of a cross-currency swap / interest rate swap derivative instrument that qualifies as a cash flow hedge				(1,294)
Other		36
Balance (in shares) at Sep. 30, 2024								60,477
Balance at the end of the period at Sep. 30, 2024		2,513,983			2,388,797			$ 61	1,630,335	(17,964)	780,959	(4,594)			125,186
Balance (in shares) at Mar. 31, 2024								60,422
Balance at the start of the period at Mar. 31, 2024		2,476,519			2,352,084			$ 60	1,619,593	(17,964)	751,238	(843)			124,435
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation		5,077			5,077				5,077
Exercise of stock-based awards by employees and directors (in shares)	[1]							31
Exercise of stock-based awards by employees and directors	[1]	94			94			$ 1	93
Cash paid to noncontrolling interest		(90)													(90)
Cash dividend declared		(7,344)			(7,344)						(7,344)
Net income		24,020			22,243						22,243				1,777
Other comprehensive income (loss), net of related taxes:
Currency translation adjustments		(266)			(164)							(164)			(102)
Change in unrealized gains or losses in respect of the Company's share in derivatives instruments of an unconsolidated investment that qualifies as a cash flow hedge		429			429							429
Change in unrealized gains or losses in respect of a cross-currency swap / interest rate swap derivative instrument that qualifies as a cash flow hedge			(1,189)	41		(1,189)	41						(1,189)	41
Other		(28)			(28)							(28)
Balance (in shares) at Jun. 30, 2024								60,453
Balance at the end of the period at Jun. 30, 2024		2,497,263			2,371,243			$ 61	1,624,763	(17,964)	766,137	(1,754)			126,020
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation		5,042			5,042				5,042
Exercise of stock-based awards by employees and directors (in shares)	[1]							24
Exercise of stock-based awards by employees and directors	[1]	0
Cash paid to noncontrolling interest		(1,948)													(1,948)
Cash dividend declared		(7,260)			(7,260)						(7,260)
Buyout of Class B membership in ORTP and OPAL		(1,167)			530				530						(1,697)
Net income		24,041			22,082						22,082				1,959
Other comprehensive income (loss), net of related taxes:
Currency translation adjustments		4,914			4,062							4,062			852
Change in unrealized gains or losses in respect of the Company's share in derivatives instruments of an unconsolidated investment that qualifies as a cash flow hedge		(1,863)			(1,863)							(1,863)
Change in unrealized gains or losses in respect of a cross-currency swap / interest rate swap derivative instrument that qualifies as a cash flow hedge			(2,649)	(2,401)		(2,649)	(2,401)						(2,649)	(2,401)
Other		11			11							11
Balance (in shares) at Sep. 30, 2024								60,477
Balance at the end of the period at Sep. 30, 2024		2,513,983			2,388,797			$ 61	1,630,335	(17,964)	780,959	(4,594)			125,186
Balance (in shares) at Dec. 31, 2024								60,501
Balance at the start of the period at Dec. 31, 2024		2,550,932			2,425,129			$ 61	1,635,245	(17,964)	814,518	(6,731)			125,803
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation		4,911			4,911				4,911
Exercise of stock-based awards by employees and directors (in shares)	[1]							162
Exercise of stock-based awards by employees and directors	[1]	0
Cash paid to noncontrolling interest		(2,767)													(2,767)
Cash dividend declared		(7,273)			(7,273)						(7,273)
Net income		41,317			40,362						40,362				955
Other comprehensive income (loss), net of related taxes:
Currency translation adjustments		2,761			2,183							2,183			578
Change in unrealized gains or losses in respect of the Company's share in derivatives instruments of an unconsolidated investment that qualifies as a cash flow hedge		(896)			(896)							(896)
Change in unrealized gains or losses in respect of a cross-currency swap / interest rate swap derivative instrument that qualifies as a cash flow hedge			(3,466)	(512)		(3,466)	(512)						(3,466)	(512)
Other		12			12							12
Balance (in shares) at Mar. 31, 2025								60,663
Balance at the end of the period at Mar. 31, 2025		2,585,019			2,460,450			$ 61	1,640,156	(17,964)	847,607	(9,410)			124,569
Balance (in shares) at Dec. 31, 2024								60,501
Balance at the start of the period at Dec. 31, 2024		2,550,932			2,425,129			$ 61	1,635,245	(17,964)	814,518	(6,731)			125,803
Other comprehensive income (loss), net of related taxes:
Currency translation adjustments		7,730
Change in unrealized gains or losses in respect of the Company's share in derivatives instruments of an unconsolidated investment that qualifies as a cash flow hedge		(1,373)
Change in unrealized gains or losses in respect of a cross-currency swap / interest rate swap derivative instrument that qualifies as a cash flow hedge				(1,003)
Other		33
Balance (in shares) at Sep. 30, 2025								60,781
Balance at the end of the period at Sep. 30, 2025		2,642,953			2,509,797			$ 61	1,649,718	(17,964)	885,233	(7,251)			133,156
Balance (in shares) at Mar. 31, 2025								60,663
Balance at the start of the period at Mar. 31, 2025		2,585,019			2,460,450			$ 61	1,640,156	(17,964)	847,607	(9,410)			124,569
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation		4,621			4,621				4,621
Exercise of stock-based awards by employees and directors (in shares)	[1]							60
Exercise of stock-based awards by employees and directors	[1]	0
Cash dividend declared		(7,282)			(7,282)						(7,282)
Increase in noncontrolling interest related to tax monetization transaction		276													276
Net income		27,719			28,046						28,046				(327)
Other comprehensive income (loss), net of related taxes:
Currency translation adjustments		7,547			6,225							6,225			1,322
Change in unrealized gains or losses in respect of the Company's share in derivatives instruments of an unconsolidated investment that qualifies as a cash flow hedge		(214)			(214)							(214)
Change in unrealized gains or losses in respect of a cross-currency swap / interest rate swap derivative instrument that qualifies as a cash flow hedge			1,324	(233)		1,324	(233)						1,324	(233)
Other		11			11							11
Balance (in shares) at Jun. 30, 2025								60,723
Balance at the end of the period at Jun. 30, 2025		2,618,788			2,492,948			$ 61	1,644,777	(17,964)	868,371	(2,297)			125,840
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation		4,941			4,941				4,941
Exercise of stock-based awards by employees and directors (in shares)	[1]							58
Exercise of stock-based awards by employees and directors	[1]	0
Cash paid to noncontrolling interest		(2,941)													(2,941)
Cash dividend declared		(7,275)			(7,275)						(7,275)
Increase in noncontrolling interest related to tax monetization transaction		9,587													9,587
Net income		24,823			24,137						24,137				686
Other comprehensive income (loss), net of related taxes:
Currency translation adjustments		(2,578)			(2,562)							(2,562)			(16)
Change in unrealized gains or losses in respect of the Company's share in derivatives instruments of an unconsolidated investment that qualifies as a cash flow hedge		(263)			(263)							(263)
Change in unrealized gains or losses in respect of a cross-currency swap / interest rate swap derivative instrument that qualifies as a cash flow hedge			$ (1,881)	$ (258)		$ (1,881)	$ (258)						$ (1,881)	$ (258)
Other		10			10							10
Balance (in shares) at Sep. 30, 2025								60,781
Balance at the end of the period at Sep. 30, 2025		$ 2,642,953			$ 2,509,797			$ 61	$ 1,649,718	$ (17,964)	$ 885,233	$ (7,251)			$ 133,156

[1] Resulted in an amount lower than $1,000.