Debt and Other Obligations - Subsidiary Guarantees (Details) - Minimum	Dec. 31, 2019
Debt and Other Obligations
Subsidiary guarantors' percentage of revenue	90.00%
Subsidiary guarantors' percentage of assets	90.00%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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