Debt - Schedule of Term Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Line of Credit Facility [Line Items]
Principal/ Fair Value Amount	$ 50,540	$ 140,974
Debt Issuance Costs	0	(1,182)
Net Amount	50,540	139,792
New Term Loan Agreement | Secured Debt
Line of Credit Facility [Line Items]
Principal/ Fair Value Amount	134,801	0
Debt Issuance Costs	(13,248)	0
Net Amount	121,553	$ 0
Accrued paid-in-kind interest	$ 500