Fair Value Measurements - Financial Instruments that were not Measured at Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Option, Quantitative Disclosures [Line Items]
Carrying Amount	$ 70,974	$ 83,179
Senior Secured Asset-Based Loan
Fair Value, Option, Quantitative Disclosures [Line Items]
Carrying Amount	70,974	0
Term Loan, net
Fair Value, Option, Quantitative Disclosures [Line Items]
Carrying Amount	0	83,179
Term Loan, net | Level 2 | Carrying Amount
Fair Value, Option, Quantitative Disclosures [Line Items]
Carrying Amount	0	83,179
Term Loan, net | Level 2 | Fair Value
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair Value	0	81,800
Senior Secured Asset-Based Loan | Senior Secured Asset-Based Loan | Level 2 | Carrying Amount
Fair Value, Option, Quantitative Disclosures [Line Items]
Carrying Amount	70,974	0
Senior Secured Asset-Based Loan | Senior Secured Asset-Based Loan | Level 2 | Fair Value
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair Value	$ 70,974	$ 0