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Subsequent Events	9 Months Ended
Subsequent Events	Sep. 30, 2018
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On October 17, 2018, the Company’s Board of Directors declared a quarterly dividend of $0.16 per share on its common stock, payable on December 7, 2018, to shareholders of record as of the close of business on November 23, 2018. The total cash payment of this dividend will be approximately $22.1 million. On October 23, 2018 one of the Company's wholly-owned international subsidiaries received a favorable decision from the Belgian government canceling $33.0 million of previously assessed income taxes. See Note 17, "Income Taxes" for additional information.