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Restructuring Charges (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Company's accrual for restructuring activities:-    
Beginning Restructuring Accrual Balance, as of December 31, 2014 $ 8,436us-gaap_RestructuringReserve  
Restructuring Charges 907us-gaap_RestructuringCharges 1,492us-gaap_RestructuringCharges
Restructuring Cash Payments (806)us-gaap_PaymentsForRestructuring  
Impact of foreign currency on restructuring reserve (625)us-gaap_RestructuringReserveTranslationAdjustment  
Ending Restructuring Accrual Balance, as of March 31, 2015 $ 7,912us-gaap_RestructuringReserve