Stockholders' Equity - Stock Repurchase Plan (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Feb. 29, 2016
Equity, Class of Treasury Stock [Line Items]
Remaining authorized repurchase amount		$ 16.3
2016 Stock Incentive Plan
Equity, Class of Treasury Stock [Line Items]
Outstanding common stock repurchase program authorized amount			$ 50.0
Remaining authorized repurchase amount	$ 16.3