Annual report pursuant to Section 13 and 15(d) 12-31-2014

Inventories - Additional Information (Details)

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Inventories - Additional Information (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Inventory Disclosure [Abstract]    
Consigned Goods $ 3.0us-gaap_OtherInventoryMaterialsSuppliesAndMerchandiseUnderConsignment $ 5.5us-gaap_OtherInventoryMaterialsSuppliesAndMerchandiseUnderConsignment