Related Party Transactions	3 Months Ended
Related Party Transactions	Mar. 31, 2015
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Sales to Nishikawa Standard Company ("NISCO"), a 40% owned joint venture, totaled $10,850 and $7,914 for the three months ended March 31, 2014 and 2015, respectively. In March 2014, the Company received from NISCO a dividend of $1,760, consisting of $809 related to earnings and a $951 return of capital. In March 2015, the Company received from NISCO a dividend of $680, all of which was related to earnings.

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

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