Commitments and Contingencies Commitments and Contingencies (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended	24 Months Ended			3 Months Ended	12 Months Ended	3 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2009	Dec. 31, 2013 Indirect Tax Liability [Member]	Dec. 31, 2012 Indirect Tax Liability [Member]	Jun. 30, 2013 Securities Action [Member]	Dec. 31, 2013 Securities Action [Member]	Jun. 30, 2013 FCPA [Member]	Dec. 31, 2012 FCPA [Member]	Dec. 31, 2013 FCPA [Member]	Dec. 31, 2012 FCPA [Member]	Dec. 31, 2011 FCPA [Member]
Commitments and Contingencies Disclosure [Abstract]
Purchase obligation, due within one year	$ 17,355
Purchase obligation purchased during period	8,586
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value		133,000
Litigation Settlement, Amount						30,000			48,000
Loss Contingency, Receivable, Receipts						12,755
Loss Contingency, Loss in Period					17,500	17,245	28,000	16,750	28,000	16,750	3,250
Loss Contingency Accrual, at Carrying Value			26,000	26,000				20,000		20,000
Loss Contingency, Range of Possible Loss, Portion Not Accrued			$ 395,000