Other (Income) Expense Foreign Currency Gain Loss by Currency (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Other (Income) Expense [Line Items]
Gain (loss) by currency	$ (576)	$ 37
British Pound [Member]
Other (Income) Expense [Line Items]
Gain (loss) by currency	(88)	13
Canadian Dollar [Member]
Other (Income) Expense [Line Items]
Gain (loss) by currency	723	59
Euro [Member]
Other (Income) Expense [Line Items]
Gain (loss) by currency	2	(90)
Other Currencies Net [Member]
Other (Income) Expense [Line Items]
Gain (loss) by currency	$ (1,213)	$ 55