Balance Sheet Detail (Details 3) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Summary of other intangible assets
Other Intangibles, Gross	$ 112,422,000	$ 71,006,000	$ 66,569,000
Accumulated Amortization	(62,901,000)	(51,234,000)	(43,604,000)
Other Intangibles, Net	49,521,000	19,772,000	22,965,000
Finite-Lived Intangible Assets, Gross
Gross, balance at beginning of period	71,006,000	66,569,000
Additions	41,736,000	4,369,000
Stock-based compensation additions	131,000	102,000
Gross, translation adjustments	(451,000)	(34,000)
Gross, balance at end of period	112,422,000	71,006,000	66,569,000
Finite-Lived Intangible Assets, Accumulated Amortization
Accumulated Amortization, balance at beginning of period	(51,234,000)	(43,604,000)
Amortization	(11,627,000)	(7,646,000)	(7,284,000)
Accumulated amortization, translation adjustments	(40,000)	16,000
Accumulated Amortization, balance at end of period	(62,901,000)	(51,234,000)	(43,604,000)
Finite-Lived Intangible Assets, Net
Net, balance at beginning of period	19,772,000	22,965,000
Additions	41,736,000	4,369,000
Stock-based compensation additions	131,000	102,000
Amortization	(11,627,000)	(7,646,000)	(7,284,000)
Net, translation adjustments	(491,000)	(18,000)
Net, balance at end of period	49,521,000	19,772,000	22,965,000
Other intangible disclosures
Additions from capitalized software development costs	2,500,000	2,200,000
Goya AS
Other intangible disclosures
Additions from business acquisitions		2,200,000
Black Diamond
Other intangible disclosures
Additions from business acquisitions	27,400,000
Syncova
Other intangible disclosures
Additions from business acquisitions	12,000,000
Developed technology
Summary of other intangible assets
Other Intangibles, Gross	66,863,000	41,832,000
Accumulated Amortization	(37,055,000)	(28,207,000)
Other Intangibles, Net	29,808,000	13,625,000
Finite-Lived Intangible Assets, Gross
Gross, balance at beginning of period	41,832,000
Gross, balance at end of period	66,863,000	41,832,000
Finite-Lived Intangible Assets, Accumulated Amortization
Accumulated Amortization, balance at beginning of period	(28,207,000)
Amortization	(8,820,000)	(6,374,000)	(5,618,000)
Accumulated Amortization, balance at end of period	(37,055,000)	(28,207,000)
Finite-Lived Intangible Assets, Net
Net, balance at beginning of period	13,625,000
Amortization	(8,820,000)	(6,374,000)	(5,618,000)
Net, balance at end of period	29,808,000	13,625,000
Purchased technologies
Summary of other intangible assets
Weighted Average Amortization Period (in years)	5.1	5.0
Other Intangibles, Gross	50,661,000	28,118,000
Accumulated Amortization	(24,777,000)	(18,730,000)
Other Intangibles, Net	25,884,000	9,388,000
Finite-Lived Intangible Assets, Gross
Gross, balance at beginning of period	28,118,000
Gross, balance at end of period	50,661,000	28,118,000
Finite-Lived Intangible Assets, Accumulated Amortization
Accumulated Amortization, balance at beginning of period	(18,730,000)
Amortization	(6,019,000)	(3,325,000)	(3,128,000)
Accumulated Amortization, balance at end of period	(24,777,000)	(18,730,000)
Finite-Lived Intangible Assets, Net
Net, balance at beginning of period	9,388,000
Amortization	(6,019,000)	(3,325,000)	(3,128,000)
Net, balance at end of period	25,884,000	9,388,000
Product development costs
Summary of other intangible assets
Weighted Average Amortization Period (in years)	3.0	3.0
Other Intangibles, Gross	16,202,000	13,714,000
Accumulated Amortization	(12,278,000)	(9,477,000)
Other Intangibles, Net	3,924,000	4,237,000
Finite-Lived Intangible Assets, Gross
Gross, balance at beginning of period	13,714,000
Gross, balance at end of period	16,202,000	13,714,000
Finite-Lived Intangible Assets, Accumulated Amortization
Accumulated Amortization, balance at beginning of period	(9,477,000)
Amortization	(2,801,000)	(3,049,000)	(2,490,000)
Accumulated Amortization, balance at end of period	(12,278,000)	(9,477,000)
Finite-Lived Intangible Assets, Net
Net, balance at beginning of period	4,237,000
Amortization	(2,801,000)	(3,049,000)	(2,490,000)
Net, balance at end of period	3,924,000	4,237,000
Other technologies
Summary of other intangible assets
Other Intangibles, Gross	45,559,000	29,174,000
Accumulated Amortization	(25,846,000)	(23,027,000)
Other Intangibles, Net	19,713,000	6,147,000
Finite-Lived Intangible Assets, Gross
Gross, balance at beginning of period	29,174,000
Gross, balance at end of period	45,559,000	29,174,000
Finite-Lived Intangible Assets, Accumulated Amortization
Accumulated Amortization, balance at beginning of period	(23,027,000)
Amortization	(2,807,000)	(1,272,000)	(1,666,000)
Accumulated Amortization, balance at end of period	(25,846,000)	(23,027,000)
Finite-Lived Intangible Assets, Net
Net, balance at beginning of period	6,147,000
Amortization	(2,807,000)	(1,272,000)	(1,666,000)
Net, balance at end of period	19,713,000	6,147,000
Customer relationships
Summary of other intangible assets
Weighted Average Amortization Period (in years)	6.4	6.0
Other Intangibles, Gross	40,917,000	27,589,000
Accumulated Amortization	(24,164,000)	(22,006,000)
Other Intangibles, Net	16,753,000	5,583,000
Finite-Lived Intangible Assets, Gross
Gross, balance at beginning of period	27,589,000
Gross, balance at end of period	40,917,000	27,589,000
Finite-Lived Intangible Assets, Accumulated Amortization
Accumulated Amortization, balance at beginning of period	(22,006,000)
Amortization	(2,146,000)	(970,000)	(1,336,000)
Accumulated Amortization, balance at end of period	(24,164,000)	(22,006,000)
Finite-Lived Intangible Assets, Net
Net, balance at beginning of period	5,583,000
Amortization	(2,146,000)	(970,000)	(1,336,000)
Net, balance at end of period	16,753,000	5,583,000
Other intangibles
Summary of other intangible assets
Weighted Average Amortization Period (in years)	4.1	4.0
Other Intangibles, Gross	4,642,000	1,585,000
Accumulated Amortization	(1,682,000)	(1,021,000)
Other Intangibles, Net	2,960,000	564,000
Finite-Lived Intangible Assets, Gross
Gross, balance at beginning of period	1,585,000
Gross, balance at end of period	4,642,000	1,585,000
Finite-Lived Intangible Assets, Accumulated Amortization
Accumulated Amortization, balance at beginning of period	(1,021,000)
Amortization	(661,000)	(302,000)	(330,000)
Accumulated Amortization, balance at end of period	(1,682,000)	(1,021,000)
Finite-Lived Intangible Assets, Net
Net, balance at beginning of period	564,000
Amortization	(661,000)	(302,000)	(330,000)
Net, balance at end of period	$ 2,960,000	$ 564,000