Long-Term Debt (Redemption) (Details)	6 Months Ended
	Jun. 30, 2019
2022
Debt Instrument, Redemption [Line Items]
Redemption price	103.75%
2023
Debt Instrument, Redemption [Line Items]
Redemption price	101.6875%
2024 and thereafter
Debt Instrument, Redemption [Line Items]
Redemption price	100.00%