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v3.20.1

Subsequent Event (Details) - 10.75% senior secured notes - Senior Notes - USD ($) | Apr. 15, 2020 | Mar. 31, 2020
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Subsequent Event [Line Items] |  |
Interest rate |  | 10.75%
Subsequent Event |  |
Subsequent Event [Line Items] |  |
Aggregate principal amount redeemed in full redemption | $ 440,000,000.0 |
Interest rate | 10.75% |
Loss on debt extinguishment | $ 28,500,000 |

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