CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)
Beginning balance (in shares) at Dec. 31, 2022		71,618,000
Beginning balance at Dec. 31, 2022	$ 1,607,775	$ 7,162	$ 1,377,802	$ 423,863	$ (13,019)	$ (188,033)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	44,285			43,076		1,209
Stock based compensation expense	7,096		7,096
Common stock transactions related to stock based employee benefit plans (in shares)		448,000
Common stock transactions related to stock based employee benefit plans	(1,309)	$ 46	(203)		(1,152)
Common stock issued for stock options (in shares)		231,000
Common stock issued for stock options	5,040	$ 22	5,018
Repurchase of common stock (in shares)		(3,000)
Repurchase of common stock	(45)		(45)
Issuance of common stock, pursuant to acquisitions (in shares)		12,792,000
Issuance of common stock, pursuant to acquisitions	410,738	$ 1,279	409,459
Conversion of options, pursuant to acquisition	10,304		10,304
Dividends on common stock	(29,852)			(29,852)
Increase (decrease) in shares during period (in shares)		13,468,000
Increase (decrease) in stockholders' equity during period	446,257	$ 1,347	431,629	13,224	(1,152)	1,209
Ending balance (in shares) at Jun. 30, 2023		85,086,000
Ending balance at Jun. 30, 2023	2,054,032	$ 8,509	1,809,431	437,087	(14,171)	(186,824)
Beginning balance (in shares) at Mar. 31, 2023		84,609,000
Beginning balance at Mar. 31, 2023	2,051,084	$ 8,461	1,803,898	421,271	(13,113)	(169,433)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	13,858			31,249		(17,391)
Stock based compensation expense	4,454		4,454
Common stock transactions related to stock based employee benefit plans (in shares)		377,000
Common stock transactions related to stock based employee benefit plans	(1,144)	$ 38	(124)		(1,058)
Common stock issued for stock options (in shares)		103,000
Common stock issued for stock options	1,258	$ 10	1,248
Repurchase of common stock (in shares)		(3,000)
Repurchase of common stock	(45)		(45)
Dividends on common stock	(15,433)			(15,433)
Increase (decrease) in shares during period (in shares)		477,000
Increase (decrease) in stockholders' equity during period	2,948	$ 48	5,533	15,816	(1,058)	(17,391)
Ending balance (in shares) at Jun. 30, 2023		85,086,000
Ending balance at Jun. 30, 2023	$ 2,054,032	$ 8,509	1,809,431	437,087	(14,171)	(186,824)
Beginning balance (in shares) at Dec. 31, 2023	84,861,498	84,861,000
Beginning balance at Dec. 31, 2023	$ 2,108,086	$ 8,486	1,808,883	467,305	(16,710)	(159,878)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	48,118			56,250		(8,132)
Stock based compensation expense	6,105		6,105
Common stock transactions related to stock based employee benefit plans (in shares)		478,000
Common stock transactions related to stock based employee benefit plans	(298)	$ 44	812		(1,154)
Repurchase of common stock (in shares)		(40,000)
Repurchase of common stock	(880)				(880)
Dividends on common stock	(30,750)			(30,750)
Increase (decrease) in shares during period (in shares)		438,000
Increase (decrease) in stockholders' equity during period	$ 22,295	$ 44	6,917	25,500	(2,034)	(8,132)
Ending balance (in shares) at Jun. 30, 2024	85,299,154	85,299,000
Ending balance at Jun. 30, 2024	$ 2,130,381	$ 8,530	1,815,800	492,805	(18,744)	(168,010)
Beginning balance (in shares) at Mar. 31, 2024		84,935,000
Beginning balance at Mar. 31, 2024	2,117,750	$ 8,494	1,811,941	478,017	(16,746)	(163,956)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	26,190			30,244		(4,054)
Stock based compensation expense	3,888		3,888
Common stock transactions related to stock based employee benefit plans (in shares)		404,000
Common stock transactions related to stock based employee benefit plans	(1,111)	$ 36	(29)		(1,118)
Repurchase of common stock (in shares)		(40,000)
Repurchase of common stock	(880)				(880)
Dividends on common stock	(15,456)			(15,456)
Increase (decrease) in shares during period (in shares)		364,000
Increase (decrease) in stockholders' equity during period	$ 12,631	$ 36	3,859	14,788	(1,998)	(4,054)
Ending balance (in shares) at Jun. 30, 2024	85,299,154	85,299,000
Ending balance at Jun. 30, 2024	$ 2,130,381	$ 8,530	$ 1,815,800	$ 492,805	$ (18,744)	$ (168,010)