Equity and Noncontrolling Interest (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Jan. 01, 2019	Jan. 01, 2018
Beginning Balance	$ 457,961	$ 422,677	$ 436,369	$ 409,618
Cumulative effect of accounting change					$ (44)	$ (754)
Adjusted Beginning Balance					436,325	408,864
Net income	(12,981)	19,771	16,568	51,928
Amounts reported in other comprehensive income (loss)	(27,260)	(6,019)	(25,403)	(15,346)
Dividends, Common Stock	(6,826)	(4,933)	(16,894)	(14,595)
Distributions to Noncontrolling Affiliate Shareholders				(834)
Share issued related to the Combination	789,080		789,080
Share issuance and equity-based compensation plans	3,476	1,140	3,774	2,619
Ending Balance	1,203,450	432,636	1,203,450	432,636
Common Stock [Member]
Beginning Balance	13,338	13,331	13,338	13,308
Cumulative effect of accounting change					0	0
Adjusted Beginning Balance					13,338	13,308
Net income	0	0	0	0
Amounts reported in other comprehensive income (loss)	0	0	0	0
Dividends, Common Stock	0	0	0	0
Distributions to Noncontrolling Affiliate Shareholders				0
Share issued related to the Combination	4,329		4,329
Share issuance and equity-based compensation plans	64	3	64	26
Ending Balance	17,731	13,334	17,731	13,334
Additional Paid-in Capital [Member]
Beginning Balance	97,602	94,984	97,304	93,528
Cumulative effect of accounting change					0	0
Adjusted Beginning Balance					97,304	93,528
Net income	0	0	0	0
Amounts reported in other comprehensive income (loss)	0	0	0	0
Dividends, Common Stock	0	0	0	0
Distributions to Noncontrolling Affiliate Shareholders				0
Share issued related to the Combination	784,751		784,751
Share issuance and equity-based compensation plans	3,412	1,137	3,710	2,593
Ending Balance	885,765	96,121	885,765	96,121
Retained Earnings [Member]
Beginning Balance	424,448	387,498	405,125	365,936
Cumulative effect of accounting change					(44)	(754)
Adjusted Beginning Balance					405,081	365,182
Net income	(13,053)	19,690	16,382	51,668
Amounts reported in other comprehensive income (loss)	0	0	0	0
Dividends, Common Stock	(6,826)	(4,933)	(16,894)	(14,595)
Distributions to Noncontrolling Affiliate Shareholders				0
Share issued related to the Combination	0		0
Share issuance and equity-based compensation plans	0	0	0	0
Ending Balance	404,569	402,255	404,569	402,255
Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance	(78,881)	(74,351)	(80,715)	(65,100)
Cumulative effect of accounting change					0	0
Adjusted Beginning Balance					(80,715)	(65,100)
Net income	0	0	0	0
Amounts reported in other comprehensive income (loss)	(27,166)	(5,981)	(25,332)	(15,232)
Dividends, Common Stock	0	0	0	0
Distributions to Noncontrolling Affiliate Shareholders				0
Share issued related to the Combination	0		0
Share issuance and equity-based compensation plans	0	0	0	0
Ending Balance	(106,047)	(80,332)	(106,047)	(80,332)
Noncontrolling Interest [Member]
Beginning Balance	1,454	1,215	1,317	1,946
Cumulative effect of accounting change					0	0
Adjusted Beginning Balance					$ 1,317	$ 1,946
Net income	72	81	186	260
Amounts reported in other comprehensive income (loss)	(94)	(38)	(71)	(114)
Dividends, Common Stock	0	0	0	0
Distributions to Noncontrolling Affiliate Shareholders				(834)
Share issued related to the Combination	0		0
Share issuance and equity-based compensation plans	0	0	0	0
Ending Balance	$ 1,432	$ 1,258	$ 1,432	$ 1,258