Debt, Commitments and Contingencies - Schedule of Pending Lawsuits Against Defendants (Details) |
Dec. 31, 2017
Lawsuits
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| District of Delaware [Member] | |
| Number of lawsuits | 4 |
| X | ||||||||||
- Definition Number of pending claims pertaining to a loss contingency. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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