Note 5 - Foreign Currency Hedging (Detail) - Derivative Instruments Designated as Cash Flow Hedges Effect on Other Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011
Net gain (loss) recognized in OCI, net of tax (1)	$ (3,454)	[1]	$ 3,841	[1]	$ (1,851)	[1]	$ (4,835)	[1]
Gain (loss) reclassified from accumulated OCI into royalty revenue, net of tax (2)	(328)	[2]	(440)	[2]	(998)	[2]	146	[2]
Amount excluded from effectiveness testing	0		0		0		0
Cash Flow Hedges [Member]
Net loss recognized in interest and other income, net -- cash flow hedges (3)	(27)	[3]		[3]	(54)	[3]	(19)	[3]
Net gain recognized in interest and other income, net -- non-designated contracts (4)	(27)	[3]		[3]	(54)	[3]	(19)	[3]
Non-designated Contracts [Member]
Net loss recognized in interest and other income, net -- cash flow hedges (3)	391	[4]		[4]	391	[4]		[4]
Net gain recognized in interest and other income, net -- non-designated contracts (4)	$ 391	[4]		[4]	$ 391	[4]		[4]

[1] Net change in the fair value of the effective portion of cash flow hedges classified in other comprehensive loss (OCL)

[2] Effective portion classified as royalty revenue

[3] Ineffective portion classified as interest and other income, net

[4] Gain on de-designation classified as interest and other income, net