Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands		Cumulative Effect, Period of Adoption, Adjustment [Member] Common Stock [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Additional Paid-in Capital [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] AOCI Attributable to Parent [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Retained Earnings [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Parent [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Noncontrolling Interest [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Parent [Member]	Noncontrolling Interest [Member]	Total
Balances (in shares) (Accounting Standards Update 2014-09 [Member]) at Dec. 31, 2019		45,503,805
Balances (Accounting Standards Update 2014-09 [Member]) at Dec. 31, 2019		$ 456	$ 549,307	$ (2,645)	$ 594,353	$ 1,141,471	$ 36,945	$ 1,178,416
Balances at Dec. 31, 2019									$ 0	$ 0	$ 0	$ (366)	$ (366)	$ 0	$ (366)
Net loss									0	0	0	(65,370)	(65,370)	(7,168)	(72,538)
Other comprehensive (loss) income									$ 0	0	(3,893)	0	(3,893)	0	(3,893)
Purchases of common stock (1) (in shares)	[1]								(49,710)
Dividends on common stock ($0.13 per share)									$ 0	0	0	(5,927)	(5,927)	0	(5,927)
Transactions with non-controlling interests									$ 0	0	0	0	0	2,280	2,280
Amortized RSUs and other (in shares)									(858)
Amortized RSUs and other									$ 0	2,536	0	(51)	2,485	0	2,485
Purchases of common stock (1) (in shares)	[1]								(49,710)
Purchases of common stock (1)	[1]								$ 0	(653)	0	0	(653)	0	(653)
RSUs vested (in shares)									139,055
RSUs vested									$ 1	(1)	0	0	0	0	$ 0
Balances (in shares) at Mar. 31, 2020									45,592,292						45,592,292
Balances at Mar. 31, 2020									$ 457	551,189	(6,538)	522,639	1,067,747	32,057	$ 1,099,804
Balances (in shares) at Dec. 31, 2020									45,668,541						45,668,541
Balances at Dec. 31, 2020									$ 457	555,407	(5,035)	424,835	975,664	15,946	$ 991,610
Net loss									0	0	0	(66,195)	(66,195)	872	(65,323)
Other comprehensive (loss) income									$ 0	0	1,319	0	1,319	0	1,319
Purchases of common stock (1) (in shares)	[1]								(57,618)
Purchases of common stock (1)	[1]								$ (1)	(2,298)	0	0	(2,299)	0	(2,299)
Restricted stock units (“RSUs”) vested (in shares)									181,575
Restricted stock units (“RSUs”) vested									$ 2	(2)	0	0	0	0	0
Dividends on common stock ($0.13 per share)									0	0	0	(5,953)	(5,953)	0	(5,953)
Transactions with non-controlling interests									$ 0	0	0	0	0	10,837	10,837
Amortized RSUs and other (in shares)									(786)
Amortized RSUs and other									$ 0	1,079	2	(77)	1,004	0	$ 1,004
Purchases of common stock (1) (in shares)	[1]								(57,618)
Balances (in shares) at Mar. 31, 2021									45,791,712						45,791,712
Balances at Mar. 31, 2021									$ 458	$ 554,186	$ (3,714)	$ 352,610	$ 903,540	$ 27,655	$ 931,195

[1] Represents shares purchased in connection with employee tax withholding for RSUs vested under our 2012 Equity Incentive Plan.