Lines of Credit and Financing Arrangements (Foreign Obligations) (Details) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Short-term Debt [Line Items]
Proceeds from facilities		$ 2,100,000	$ 21,300,000
Repayments on facilities		2,100,000	$ 18,400,000
Foreign Obligations [Member]
Short-term Debt [Line Items]
Proceeds from facilities	$ 21,300,000	$ 0
Repayments on facilities	$ 18,400,000