Long-Term Debt - Additional Information (Details) |
3 Months Ended | |||
---|---|---|---|---|
Aug. 26, 2019 |
Dec. 31, 2019 |
Sep. 30, 2019
USD ($)
|
Dec. 31, 2018
USD ($)
|
|
Debt Instrument [Line Items] | ||||
Maximum permitted leverage ratio | 4.5 | |||
Average interest rate on debt outstanding | 4.08% | |||
Credit agreement interest rate including effect of interest rate swaps | 3.60% | |||
Long-term debt, fair value | $ 2,214,200,000 | $ 2,311,300,000 | ||
Long-term debt, carrying value | 2,183,800,000 | $ 2,318,800,000 | ||
Revolving Credit Facility | ||||
Debt Instrument [Line Items] | ||||
Revolving credit facility available | 723,600,000 | |||
Revolving credit facility - maximum borrowing capacity | 750,000,000.0 | |||
Letters of credit facility issued but undrawn | $ 26,400,000 | |||
Scenario, Forecast | ||||
Debt Instrument [Line Items] | ||||
Maximum permitted leverage ratio | 4.0 |