Long-Term Debt - 2023 Senior Notes (Details) |
Jun. 10, 2016
USD ($)
|
Mar. 31, 2018
USD ($)
|
Dec. 31, 2017
USD ($)
|
---|---|---|---|
Debt Instrument [Line Items] | |||
Unamortized debt discount | $ 13,000,000 | $ 13,500,000 | |
Senior Notes | 9.25% Senior Secured Notes due 2023 | |||
Debt Instrument [Line Items] | |||
Stated interest rate | 9.25% | ||
Senior Notes | 9.25% Senior Secured Notes due 2023 | CVR Partners, LP | |||
Debt Instrument [Line Items] | |||
Debt instrument face amount | $ 645,000,000 | ||
Stated interest rate | 9.25% | ||
Unamortized debt discount | $ 16,100,000 | ||
Debt issuance costs | $ 9,400,000 | ||
Maximum fixed charge coverage ratio required to make restricted payments | 1.75 | 1.75 | |
Maximum aggregated restricted payments basket permitted | $ 75,000,000.0 | ||
Debt instrument, remaining restricted payments permitted | $ 72,700,000 | ||
Interest payable | 17,600,000 | 2,700,000 | |
Senior Notes | 9.25% Senior Secured Notes due 2023 | CVR Partners, LP | Level 2 | |||
Debt Instrument [Line Items] | |||
Fair value of debt | $ 686,700,000 | $ 694,200,000 |