Debt - Senior Notes (Details)	Dec. 31, 2019 USD ($)
5.375% Senior Notes
Debt Instrument [Line Items]
Percentage of contractual interest rate on notes	5.375%
4.875% Notes
Debt Instrument [Line Items]
Percentage of contractual interest rate on notes	4.875%
Senior Notes | 5.375% Senior Notes
Debt Instrument [Line Items]
Percentage of contractual interest rate on notes	5.375%
Aggregate principal amount of notes outstanding	$ 700,000,000
Senior Notes | 4.875% Notes
Debt Instrument [Line Items]
Percentage of contractual interest rate on notes	4.875%
Aggregate principal amount of notes outstanding	$ 330,000,000