Income Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Taxes [Line Items]
Estimated net tax benefit resulting from the re-measurement of the net deferred tax liability				$ (130,700)
Additional net tax benefit recorded for the finalization of the provisional amounts	$ 1,100
Amount of estimated withholding tax on foreign earnings if they were distributed as dividends		$ 4,700
Unrecognized tax benefits that would impact effective tax rate		2,100	$ 3,700
Amount of income tax (benefit) expense related to interest and penalties		(400)	100	$ (600)
Amount of interest and penalties accrued for		300	$ 700
State
Income Taxes [Line Items]
Operating loss carryforwards		7,400
State net operating losses, valuation allowance		12,300
Federal
Income Taxes [Line Items]
Operating loss carryforwards		23,000
Tax credit carryforward, not subject to expiration		19,500
Tax credit carryforward subject to expiration		5,000
General Business Tax Credit Carryforward [Member]
Income Taxes [Line Items]
Tax credit carryforward		3,400
Capital Loss Carryforward
Income Taxes [Line Items]
Tax credit carryforward		200
Tax credit carryforward, valuation allowance		$ 600