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Restructuring and Other Charges (Recoveries) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Restructuring Cost and Reserve [Line Items]      
Restructuring and other charges (recoveries), net $ 2,387r_RestructuringAndOtherChargesRecoveriesNet $ (470)r_RestructuringAndOtherChargesRecoveriesNet $ 8,070r_RestructuringAndOtherChargesRecoveriesNet
Employee severance and benefits [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring and other charges (recoveries), net 2,387r_RestructuringAndOtherChargesRecoveriesNet
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember		 (470)r_RestructuringAndOtherChargesRecoveriesNet
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember		 7,205r_RestructuringAndOtherChargesRecoveriesNet
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
Contract termination costs [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring and other charges (recoveries), net $ 0r_RestructuringAndOtherChargesRecoveriesNet
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_ContractTerminationMember		 $ 0r_RestructuringAndOtherChargesRecoveriesNet
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_ContractTerminationMember		 $ 865r_RestructuringAndOtherChargesRecoveriesNet
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_ContractTerminationMember