Noncontrolling Interests - Activity for Noncontrolling Interests (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of stock dividend for noncontrolling interest	$ 1,861
Distributions to noncontrolling interests	(19,716)	$ (4,368)	$ (4,369)
Net Income	28,536	18,407	145,777
Other comprehensive income (loss)	(22,520)	(5,179)	7,356
Non-controlling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	232,203	31,105
Contributions/issuance of noncontrolling interests	30,039	205,000
Issuance of stock dividend for noncontrolling interest	1,861	0
Distributions to noncontrolling interests	(19,716)	(4,368)	(4,369)
Allocated distributions to noncontrolling interests subject to redemption	(42)	(13)
Net Income	3,749	789	5,120
Other comprehensive income (loss)	(3,054)	(310)	254
Ending balance	$ 245,040	$ 232,203	$ 31,105