Equity - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended		12 Months Ended
	Jan. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Class of Stock [Line Items]
Issuance of common stock			$ 5,719	$ 15,325
NRZ
Class of Stock [Line Items]
Issuance of common stock (in shares)				6,075,510
Issuance of common stock				$ 13,900
Securities Class Action
Class of Stock [Line Items]
Issuance of common stock (in shares)	1,875,000	625,000
Common stock to be issued in connection with mediated settlement of litigation				2,500,000