Stockholders' Equity and EPS - Preferred Stock (Details) $ / shares in Units, $ in Thousands			3 Months Ended
	Feb. 02, 2021 $ / shares shares	Dec. 09, 2019 $ / shares shares	Mar. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares
Class of Stock [Line Items]
Preferred stock, par value, in usd per share | $ / shares			$ 0.001	$ 0.001
Preferred stock, shares issued | shares			357,500	350,000
Carrying value | $			$ 1,079,333	$ 340,138
Preferred Stock, Series A
Class of Stock [Line Items]
Preferred stock, dividend rate, percentage		5.25%
Preferred stock, depositary shares issued | shares		14,000,000
Preferred stock, depository share ownership interest			0.025
Preferred stock, par value, in usd per share | $ / shares		$ 0.001	$ 0.001
Preferred stock, liquidation preference per share, in usd per share | $ / shares		1,000
Preferred stock, liquidation preference per depositary share | $ / shares		$ 25
Preferred stock, shares issued | shares			350,000
Preferred stock, shares outstanding | shares			350,000
Carrying value | $			$ 340,100
Preferred stock, liquidation preference, value | $			$ 350,000
Series B Preferred Stock
Class of Stock [Line Items]
Preferred stock, dividend rate, percentage	4.10%
Preferred stock, depositary shares issued | shares	750,000
Preferred stock, depository share ownership interest			0.01
Preferred stock, par value, in usd per share | $ / shares	$ 0.001		$ 0.001
Preferred stock, liquidation preference per share, in usd per share | $ / shares	100,000
Preferred stock, liquidation preference per depositary share | $ / shares	$ 1,000
Preferred stock, period dividend rate reset	10 years
Preferred stock, number of business days prior to each reset date dividend rate calculated	3 days
Preferred stock, number of days used for average yields on actively traded US Treasury securities	5 days
Preferred stock, margin used for dividend rate at reset	3.064%
Preferred stock, shares issued | shares			7,500
Preferred stock, shares outstanding | shares			7,500
Carrying value | $			$ 739,200
Preferred stock, liquidation preference, value | $			$ 750,000