Debt - Schedule of Percentage of Principal Amount at which the Entity May Redeem the Notes (Details) - Senior Notes due 2024	3 Months Ended
	Mar. 31, 2017
2019
Debt Instrument, Redemption [Line Items]
Debt instrument, redemption price (as a percent)	107.10%
2020
Debt Instrument, Redemption [Line Items]
Debt instrument, redemption price (as a percent)	104.80%
2021
Debt Instrument, Redemption [Line Items]
Debt instrument, redemption price (as a percent)	102.40%
2022 and thereafter
Debt Instrument, Redemption [Line Items]
Debt instrument, redemption price (as a percent)	100.00%