Cash and Cash Equivalents (Details) (USD $)	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	$ 184,901,000	$ 233,226,000	$ 371,437,000	$ 215,230,000	$ 370,245,000	$ 282,894,000
Cash Equivalents, at Carrying Value	5,700,000		65,800,000
Cash Identified For Settling Accrued Payable To Retailer Partners	71,700,000		85,500,000
UNITED STATES
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	26,000,000		199,000,000
Foreign Geographical Area [Member]
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	$ 13,300,000		$ 15,200,000