Debt	3 Months Ended
Mar. 31, 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 which matures in June 2019. 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 March 31, 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 March 31, 2018, and December 31, 2017, the Company had total credit facility borrowings of $57.2 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 March 31, 2018 and December 31, 2017.

Debt

3 Months Ended

Mar. 31, 2018

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 which matures in June 2019. 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 March 31, 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 March 31, 2018, and December 31, 2017, the Company had total credit facility borrowings of $57.2 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 March 31, 2018 and December 31, 2017.