Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Tax benefit recognized from stock options exercised	$ 5,000	$ 11,600	$ 1,500
Deferred Tax Assets, Gross	59,178	55,974
Valuation allowance	3,877	3,021
Unrecognized tax positions, accrued interest	2,700
Operating Loss Carryforwards
Unrecognized tax positions	55,278	52,832	$ 39,710
Federal
Operating Loss Carryforwards
Net operating loss carryforwards	146,900
State
Operating Loss Carryforwards
Net operating loss carryforwards	73,700
Foreign
Operating Loss Carryforwards
Net operating loss carryforwards	121,100
Other Noncurrent Liabilities
Operating Loss Carryforwards
Unrecognized tax positions	$ 34,800	$ 31,300