Debt	6 Months Ended
Jun. 30, 2018
Debt [Abstract]
Debt Disclosure [Text Block]	Note 14 – Debt The Company’s primary credit facility (“the Credit Facility”) is a $300.0 million syndicated multicurrency credit agreement with a group of lenders. The Credit Facility was amended and restated to extend the maturity date from June 2019 to October 2019 in the second quarter of 2018, and the Company anticipates further extending the Credit Facility maturity date through December 15, 2019 during the third quarter of 2018. The maximum amount available under the Credit Facility can be increased to $400.0 million at the Company’s option if the lenders agree and the Company satisfies certain conditions. Borrowings under the Credit Facility generally bear interest at a base rate or LIBOR rate plus a margin. The Credit Facility has certain financial and other covenants, with the key financial covenant requiring that the Company’s consolidated net debt to adjusted EBITDA ratio cannot exceed 3.50 to 1. As of June 30, 2018, and December 31, 2017, the Company’s net debt to adjusted EBITDA ratio was below 1.0 to 1, and the Company was also in compliance with all of its other covenants. As of June 30, 2018, and December 31, 2017, the Company had total credit facility borrowings of $46.2 million and $48.5 million, primarily under the Credit Facility. The Company’s other debt obligations were primarily industrial development bonds and municipality-related loans as of June 30, 2018 and December 31, 2017, which includes a $5.0 million industrial development bond that matures in December 2018. This bond is included within the caption Short-term borrowings and current portion of long-term debt on the Company’s Condensed Consolidated Balance Sheets as of June 30, 2018 and December 31, 2017. The Company expects to repay the amount due for this bond at its maturity.

Note 14 – Debt

The Company’s primary credit facility (“the Credit Facility”) is a $300.0 million syndicated multicurrency credit agreement with a group of lenders. The Credit Facility was amended and restated to extend the maturity date from June 2019 to October 2019 in the second quarter of 2018, and the Company anticipates further extending the Credit Facility maturity date through December 15, 2019 during the third quarter of 2018. The maximum amount available under the Credit Facility can be increased to $400.0 million at the Company’s option if the lenders agree and the Company satisfies certain conditions. Borrowings under the Credit Facility generally bear interest at a base rate or LIBOR rate plus a margin. The Credit Facility has certain financial and other covenants, with the key financial covenant requiring that the Company’s consolidated net debt to adjusted EBITDA ratio cannot exceed 3.50 to 1. As of June 30, 2018, and December 31, 2017, the Company’s net debt to adjusted EBITDA ratio was below 1.0 to 1, and the Company was also in compliance with all of its other covenants. As of June 30, 2018, and December 31, 2017, the Company had total credit facility borrowings of $46.2 million and $48.5 million, primarily under the Credit Facility. The Company’s other debt obligations were primarily industrial development bonds and municipality-related loans as of June 30, 2018 and December 31, 2017, which includes a $5.0 million industrial development bond that matures in December 2018. This bond is included within the caption Short-term borrowings and current portion of long-term debt on the Company’s Condensed Consolidated Balance Sheets as of June 30, 2018 and December 31, 2017. The Company expects to repay the amount due for this bond at its maturity.