Derivative Financial Instruments (Narrative) (Details) € in Thousands, ₩ in Thousands, ₨ in Thousands, ¥ in Thousands, ¥ in Thousands, £ in Thousands, kr in Thousands, kr in Thousands, SFr in Thousands, R$ in Thousands, Kč in Thousands, $ in Thousands, $ in Thousands, $ in Thousands, $ in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2019 GBP (£)	Dec. 31, 2019 SEK (kr)	Dec. 31, 2019 CZK (Kč)	Dec. 31, 2019 USD ($)	Dec. 31, 2019 CAD ($)	Dec. 31, 2019 DKK (kr)	Dec. 31, 2019 CHF (SFr)	Dec. 31, 2019 HKD ($)	Dec. 31, 2019 EUR (€)	Dec. 31, 2019 JPY (¥)	Dec. 31, 2019 AUD ($)	Dec. 31, 2019 INR (₨)	Dec. 31, 2019 CNY (¥)	Dec. 31, 2019 KRW (₩)	Dec. 31, 2019 SGD ($)	Dec. 31, 2019 BRL (R$)	Dec. 31, 2018 USD ($)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Cash flow hedge instrument term, maximum	12 months
Cumulative unrealized gain (loss) on cash flow derivative instruments in accumulated other comprehensive loss				$ 0.9
Cumulative unrealized gain (loss) on cash flow derivative instruments in accumulated other comprehensive loss																	$ (1.0)
Net notional foreign currency forward contracts outstanding	£ 4,700	kr 6,200	Kč 18,700		$ 1,550	kr 8,900	SFr 159,884	$ 30,200	€ 9,864	¥ 473,499	$ 25,900	₨ 1,377,000	¥ 57,608	₩ 941,600	$ 17,300	R$ 400