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Debt	6 Months Ended
Debt	Jun. 30, 2018
Debt Disclosure [Abstract]
Debt	Debt Credit Facilities The Company has revolving lines of credit with various banks in the United States and Europe. Total available credit at June 30, 2018, was $304.1 million including revolving credit lines and an irrevocable standby letter of credit in support of various insurance deductibles. The Company had no outstanding debt balance as of June 30, 2018 and 2017, and December 31, 2017, respectively. The Company was in compliance with its financial covenants at June 30, 2018.