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Subsequent Events (Notes)	6 Months Ended
Subsequent Events (Notes)	Jun. 30, 2016
Subsequent Event [Line Items]
Subsequent Events [Text Block]	Subsequent Events On August 1, 2016, the Company issued a notice of redemption with respect to the remaining outstanding Secured Notes and deposited $5,629 with the trustee (representing the aggregate principal amount plus accrued and unpaid interest to the August 31, 2016 redemption date) to effect a satisfaction and discharge of the indenture governing the Secured Notes. On August 8, 2016, the Company announced that it had entered into an agreement with its joint venture partner for the sale of its 50% investment in the Company's joint venture, Kreher, for aggregate proceeds of approximately $31,550, subject to formal corporate approval by both joint venture partners' boards of directors. Because the sale of the Company's investment in Kreher is not considered to be a strategic shift that will have a major effect on the Company's operations and financial results, the results of Kreher are reflected within continuing operations in the Condensed Consolidated Financial Statements.