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Commitments and Contingent Liabilities	6 Months Ended
Commitments and Contingent Liabilities	Jun. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingent Liabilities	Commitments and Contingent Liabilities As of June 30, 2015, the Company had $5,092 of irrevocable letters of credit outstanding which primarily consisted of $2,000 for collateral associated with commodity hedges and $1,842 for compliance with the insurance reserve requirements of its workers’ compensation insurance carriers. The Company is party to a variety of legal proceedings arising from the operation of its business. These proceedings are incidental and occur in the normal course of the Company’s business affairs. It is the opinion of management, based upon the information available at this time, that the current expected outcome of these proceedings will not have a material effect on the consolidated results of operations, financial condition or cash flows of the Company.