Equity and Noncontrolling Interest (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Jan. 01, 2020	Jan. 01, 2019
Beginning Balance	$ 1,162,032	$ 446,363	$ 1,242,366	$ 436,369
Cumulative effect of accounting change					$ (911)	$ (44)
Adjusted Beginning Balance					1,241,455	436,325
Net (loss) income	(7,722)	15,649	(36,066)	29,549
Amounts reported in other comprehensive income (loss)	12,261	310	(31,225)	1,857
Dividends, Common Stock	(6,853)	(5,135)	(13,687)	(10,068)
Purchase of noncontrolling affiliate shareholders			(1,047)	0
Disposition of Noncontrolling Interest			(751)
Share issuance and equity-based compensation plans	7,623	774	8,662	298
Ending Balance	1,167,341	457,961	1,167,341	457,961
Common Stock [Member]
Beginning Balance	17,752	13,334	17,735	13,338
Cumulative effect of accounting change					0	0
Adjusted Beginning Balance					17,735	13,338
Net (loss) income	0	0	0	0
Amounts reported in other comprehensive income (loss)	0	0	0	0
Dividends, Common Stock	0	0	0	0
Purchase of noncontrolling affiliate shareholders			0
Disposition of Noncontrolling Interest			0
Share issuance and equity-based compensation plans	48	4	65	0
Ending Balance	17,800	13,338	17,800	13,338
Additional Paid-in Capital [Member]
Beginning Balance	888,533	96,832	888,218	97,304
Cumulative effect of accounting change					0	0
Adjusted Beginning Balance					888,218	97,304
Net (loss) income	0	0	0	0
Amounts reported in other comprehensive income (loss)	0	0	0	0
Dividends, Common Stock	0	0	0	0
Purchase of noncontrolling affiliate shareholders			(707)
Disposition of Noncontrolling Interest			0
Share issuance and equity-based compensation plans	7,575	770	8,597	298
Ending Balance	896,108	97,602	896,108	97,602
Retained Earnings [Member]
Beginning Balance	376,853	413,992	412,979	405,125
Cumulative effect of accounting change					(911)	(44)
Adjusted Beginning Balance					412,068	405,081
Net (loss) income	(7,735)	15,591	(36,116)	29,435
Amounts reported in other comprehensive income (loss)	0	0	0	0
Dividends, Common Stock	(6,853)	(5,135)	(13,687)	(10,068)
Purchase of noncontrolling affiliate shareholders			0
Disposition of Noncontrolling Interest			0
Share issuance and equity-based compensation plans	0	0	0	0
Ending Balance	362,265	424,448	362,265	424,448
Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance	(121,524)	(79,167)	(78,170)	(80,715)
Cumulative effect of accounting change					0	0
Adjusted Beginning Balance					(78,170)	(80,715)
Net (loss) income	0	0	0	0
Amounts reported in other comprehensive income (loss)	12,260	286	(31,094)	1,834
Dividends, Common Stock	0	0	0	0
Purchase of noncontrolling affiliate shareholders			0
Disposition of Noncontrolling Interest			0
Share issuance and equity-based compensation plans	0	0	0	0
Ending Balance	(109,264)	(78,881)	(109,264)	(78,881)
Noncontrolling Interest [Member]
Beginning Balance	418	1,372	1,604	1,317
Cumulative effect of accounting change					0	0
Adjusted Beginning Balance					$ 1,604	$ 1,317
Net (loss) income	13	58	50	114
Amounts reported in other comprehensive income (loss)	1	24	(131)	23
Dividends, Common Stock	0	0	0	0
Purchase of noncontrolling affiliate shareholders			(340)
Disposition of Noncontrolling Interest			(751)
Share issuance and equity-based compensation plans	0	0	0	0
Ending Balance	$ 432	$ 1,454	$ 432	$ 1,454