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Cash and Cash Equivalents (Details) (USD $)
Mar. 31, 2015
Dec. 31, 2014
Mar. 31, 2014
Dec. 31, 2013
Cash and Cash Equivalents [Line Items]        
Cash and cash equivalents $ 197,934,000us-gaap_CashAndCashEquivalentsAtCarryingValue $ 242,696,000us-gaap_CashAndCashEquivalentsAtCarryingValue $ 251,546,000us-gaap_CashAndCashEquivalentsAtCarryingValue $ 371,437,000us-gaap_CashAndCashEquivalentsAtCarryingValue
Cash Equivalents, at Carrying Value 8,600,000us-gaap_CashEquivalentsAtCarryingValue 900,000us-gaap_CashEquivalentsAtCarryingValue    
Cash Identified For Settling Accrued Payable To Retailer Partners 68,700,000outr_CashIdentifiedForSettlingAccruedPayableToRetailerPartners 81,700,000outr_CashIdentifiedForSettlingAccruedPayableToRetailerPartners    
UNITED STATES        
Cash and Cash Equivalents [Line Items]        
Cash and cash equivalents 37,800,000us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_StatementGeographicalAxis
= country_US
66,500,000us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_StatementGeographicalAxis
= country_US
   
Foreign Financial Institutions        
Cash and Cash Equivalents [Line Items]        
Cash and cash equivalents $ 10,700,000us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_StatementGeographicalAxis
= us-gaap_NonUsMember
$ 11,600,000us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_StatementGeographicalAxis
= us-gaap_NonUsMember