Emergence from WIMC Reorganization Proceedings - Schedule of Liabilities Subject to Compromise (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
Feb. 09, 2018	Dec. 31, 2017	Dec. 31, 2018
Reorganizations [Abstract]
Senior Notes		$ 538,662
Convertible Notes		242,468
Accrued interest		25,807	$ 0
Total liabilities subject to compromise		806,937	$ 0
Interest expense on debt subject to compromise that was not accrued	$ 5,900	$ 4,400

The amount of trade accounts payable included in liabilities subject to compromise.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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