Stock-based Compensation - Leveraged Stock Units Activity (Details) - LSUs $ / shares in Units, shares in Thousands, $ in Thousands	Dec. 31, 2019 USD ($) $ / shares shares
Outstanding as of December 31, 2019
Leveraged Stock Units (in shares) | shares	685
Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 12.85
Weighted Average Remaining Contractual Term	9 years 2 months 1 day
Aggregate Intrinsic Value | $	$ (2,603)
Vested and expected to vest after December 31, 2019
Leveraged Stock Units (in shares) | shares	685
Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares	$ 12.85
Weighted Average Remaining Contractual Term	9 years 2 months 1 day
Aggregate Intrinsic Value | $	$ (2,603)