Note 7 - Derivative Instruments, Effect of Derivative Contracts on Condensed Consolidated Financial Information (Details) (USD $) In Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Derivative Instruments, Gain (Loss)
Gain (loss) recognized from derivative contracts in the consolidated statement of income	$ 5,520	$ (13,433)	$ (23,155)	$ 5,169
Foreign Exchange Contract [Member] | Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Net Revenue [Member]
Derivative Instruments, Gain (Loss)
Gain (loss) recognized from derivative contracts in the consolidated statement of income	(6,420)	6,362	(23,363)	14,225
Foreign Exchange Contract [Member] | Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Operating Expense [Member]
Derivative Instruments, Gain (Loss)
Gain (loss) recognized from derivative contracts in the consolidated statement of income	(2,774)	0	(7,565)	0
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member] | Interest Income And Other Income [Member]
Derivative Instruments, Gain (Loss)
Gain (loss) recognized from derivative contracts in the consolidated statement of income	14,999	(19,795)	8,058	(9,056)
Not Designated as Hedging Instrument [Member] | Embedded Derivative Financial Instruments [Member] | Interest Income And Other Income [Member]
Derivative Instruments, Gain (Loss)
Gain (loss) recognized from derivative contracts in the consolidated statement of income	$ (285)	$ 0	$ (285)	$ 0