Significant Accounting Policies - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Significant Accounting Policies [Abstract]
Research and Development Expense	$ 32.1	$ 24.5	$ 23.9
Cash and cash equivalents description	The Company invests temporary and excess funds in money market securities and financial instruments having maturities within 90 days. The Company considers all highly liquid investments with original maturities of three months or less to be cash equivalents.
Schedule Of Equity Method Investments [Line Items]
Prior Period Reclassification Adjustment	$ 1.0
Restatement Of Prior Year Income Tax Effects	0.2
Impact Of Restatement On Opening Retained Earnings Net Of Tax	$ 0.8
Income Tax Examination Minimum Likelihood Of Tax Benefits Being Realized Upon Ultimate Settlement	50.00%
Measurement period	1 year
New Accounting Pronouncement Or Change In Accounting Principle Description	As a result of the Company’s adoption, using the modified retrospective adoption approach, the Company recorded a cumulative effect of an accounting change as of January 1, 2018 to adjust the Company’s estimate of variable consideration related to the customer’s expected rights to return product. This adjustment resulted in an increase to other accrued liabilities of $1.0 million, an increase to deferred tax assets of $0.2 million and a decrease to retained earnings of $0.8 million.