Consolidated Statements of Changes in Equity - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment [Member]	Adjusted Balance [Member]	Common Stock [Member]	Common Stock [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock [Member] Adjusted Balance [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Additional Paid-in Capital [Member] Adjusted Balance [Member]	Retained Earnings [Member]	Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Retained Earnings [Member] Adjusted Balance [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Other Comprehensive Income (Loss) [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Accumulated Other Comprehensive Income (Loss) [Member] Adjusted Balance [Member]	Noncontrolling Interest [Member]	Noncontrolling Interest [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Noncontrolling Interest [Member] Adjusted Balance [Member]
Beginning Balance at Dec. 31, 2017	$ 409,618	$ (754)	$ 408,864	$ 13,308	$ 0	$ 13,308	$ 93,528	$ 0	$ 93,528	$ 365,936	$ (754)	$ 365,182	$ (65,100)	$ 0	$ (65,100)	$ 1,946	$ 0	$ 1,946
Net income	59,811			0			0			59,473			0			338
Amounts reported in other comprehensive income (loss)	(15,705)			0			0			0			(15,615)			(90)
Dividends common stock	(19,530)			0			0			(19,530)			0			0
Distributions to noncontrolling affiliate shareholders	(877)			0			0			0			0			(877)
Shares issued upon exercise of stock options and other	(423)			9			(432)			0			0			0
Shares issued for employee stock purchase plan	505			3			502			0			0			0
Share based compensation plans	3,724			18			3,706			0			0			0
Ending Balance at Dec. 31, 2018	436,369	(44)	436,325	13,338	0	13,338	97,304	0	97,304	405,125	(44)	405,081	(80,715)	0	(80,715)	1,317	0	1,317
Net income	31,884			0			0			31,622			0			262
Amounts reported in other comprehensive income (loss)	2,570			0			0			0			2,545			25
Dividends common stock	(23,724)			0			0			(23,724)			0			0
Shares issued related to the Combination	789,080			4,329			784,751			0			0			0
Shares issued upon exercise of stock options and other	894			23			871			0			0			0
Shares issued for employee stock purchase plan	476			3			473			0			0			0
Share based compensation plans	4,861			42			4,819			0			0			0
Ending Balance at Dec. 31, 2019	1,242,366	$ (911)	$ 1,241,455	17,735	$ 0	$ 17,735	888,218	$ 0	$ 888,218	412,979	$ (911)	$ 412,068	(78,170)	$ 0	$ (78,170)	1,604	$ 0	$ 1,604
Net income	39,787			0			0			39,658			0			129
Amounts reported in other comprehensive income (loss)	51,480			0			0			0			51,572			(92)
Dividends common stock	(27,786)			0			0			(27,786)			0			0
Acquisition of noncontrolling interest	1,047			0			707			0			0			340
Distributions to noncontrolling affiliate shareholders	(751)			0			0			0			0			(751)
Shares issued upon exercise of stock options and other	6,780			66			6,714			0			0			0
Share based compensation plans	10,996			50			10,946			0			0			0
Ending Balance at Dec. 31, 2020	$ 1,320,914			$ 17,851			$ 905,171			$ 423,940			$ (26,598)			$ 550