Retirement Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Eligibility to participate, days of service	45 days
Eligibility to participate, years of age	21 years
Maximum annual contributions per employee	75.00%
Vesting percentage of employer contribution	25.00%
Vesting term of employer contribution	4 years
Contribution expense related to employer matching contributions	$ 5.5	$ 4.7	$ 3.3
Foreign Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Contribution expense related to employer matching contributions	$ 1.5	$ 1.3	$ 0.9