Stockholders' Equity - Narratives (Details) $ / shares in Units, $ in Thousands							2 Months Ended	3 Months Ended			12 Months Ended
	Dec. 05, 2019 USD ($) $ / shares shares	Aug. 13, 2018 $ / shares shares	Jun. 29, 2018 USD ($)	Apr. 26, 2018 $ / shares shares	Apr. 23, 2018 $ / shares shares	Apr. 12, 2018 shares	Jun. 30, 2018 $ / shares	Dec. 31, 2019 $ / shares	Sep. 30, 2019 $ / shares	Sep. 30, 2018 $ / shares	Dec. 31, 2019 USD ($) shares	Dec. 31, 2018 USD ($) $ / shares	Dec. 31, 2017 USD ($) shares	Jul. 30, 2019 USD ($)	Apr. 19, 2018 USD ($)
Class of Stock [Line Items]
Stock Issued During Period, Shares, Stock Splits | shares						3,022,259.23
Dividends Payable | $															$ 160,000
Default Event Threshold															1.75
Stock Issued During Period, Value, New Issues | shares				3,097,525	35,000,000
Shares, Issued | shares													38,097,525
Sale of Stock, Price Per Share | $ / shares	$ 13.125			$ 15	$ 15
Offering Costs | $											$ 5,100
Common Stock, Dividends, Per Share, Declared | $ / shares								$ 0.085	$ 0.85	$ 0.0645
Dividends | $			$ 19,500
Pro rated Dividends | $ / shares							$ 0.085
Common Stock, Dividends, Per Share, Declared, Annualized | $ / shares							$ 0.34
Special Dividend | $ / shares												$ 0.70
Stock Repurchased During Period, Shares | shares	19,047,619	11,688,311									1,004,685
Stock Repurchase Program, Authorized Amount | $	$ 250,000													$ 100,000
Purchase of treasury shares | $											$ 10,868	$ 0	$ 0
Sale of Stock, Transaction Date | shares	11,175,927
Decrease in percentage of shares outstanding (percent)	7.00%
Brookfield [Member]
Class of Stock [Line Items]
Stock Issued During Period, Shares, Stock Splits | shares		23,000,000
Sale of Stock, Price Per Share | $ / shares		$ 20.00