Consolidated Statements of Equity Statement - USD ($) $ in Thousands	Total	Common Stock [Member]	Common Stock Including Additional Paid in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Parent [Member]	Noncontrolling Interest [Member]
Beginning balance (in shares) at Dec. 31, 2018		39,498,000
Beginning balance at Dec. 31, 2018	$ 734,048		$ 1,334,364	$ (196,305)	$ (425,396)	$ 712,663	$ 21,385
Net income (loss)	(149)				(1,907)	(1,907)	1,758
Other comprehensive income (loss), net of tax	(1,780)			(1,780)		(1,780)
Distributions to noncontrolling interests	(517)						(517)
Net stock issuance and repurchases (in shares)		360,000
Net stock issues and repurchases	1,195		1,195			1,195
Stock-based compensation expense	7,048		7,048			7,048
Stock repurchased during period (in shares)		165,000
Stock repurchased	(7,814)		(7,814)			(7,814)
Ending balance (in shares) at Mar. 31, 2019		39,693,000
Ending balance at Mar. 31, 2019	$ 732,031		1,334,793	(198,085)	(427,303)	709,405	22,626
Beginning balance (in shares) at Dec. 31, 2019	39,941,000	39,941,000
Beginning balance at Dec. 31, 2019	$ 800,815		1,357,600	(204,672)	(376,390)	776,538	24,277
Net income (loss)	9,162				8,684	8,684	478
Other comprehensive income (loss), net of tax	(25,211)			(25,211)		(25,211)
Distributions to noncontrolling interests	0						0
Net stock issuance and repurchases (in shares)		235,000
Net stock issues and repurchases	2,247		2,247			2,247
Stock-based compensation expense	$ 8,482		8,482			8,482
Stock repurchased during period (in shares)	529,396
Stock repurchased	$ (25,000)
Ending balance (in shares) at Mar. 31, 2020	40,176,000	40,176,000
Ending balance at Mar. 31, 2020	$ 795,495		$ 1,368,329	$ (229,883)	$ (367,706)	$ 770,740	$ 24,755