Acquisitions (Tables)

12 Months Ended

Dec. 31, 2011

Aggregate Allocation of the Purchase Price for 2011 Acquisitions to Intangible Assets

Developed technology (weighted-average useful life of 3.2 years)	$	97,500
Customer relationships (weighted-average useful life of 4.0 years)		58,400
Tradename and trademark (weighted-average useful life of 2.6 years)		1,200
Total intangible assets	$	157,100

Allocation of Isilon Purchase Price

Trade accounts receivable (approximates contractual value)	$	38,565
Other current assets		17,448
Property and equipment		8,678
Intangible assets:
Developed technology (weighted-average useful life of 3.1 years)		115,300
Customer maintenance relationships (weighted-average useful life of 6.6 years)		142,900
Customer product relationships (weighted-average useful life of 4.3 years)		159,600
Tradename (weighted-average useful life of 2.4 years)		7,700
IPR&D		43,900
Total intangible assets		469,400
Goodwill		1,974,536
Current liabilities		(51,910)
Income tax payable		(272)
Deferred revenue		(37,800)
Deferred income taxes		(90,758)
Total purchase price	$	2,327,887

Fair Value of Stock Options for 2010 Acquisitions, including Isilon, Weighted-Average Assumptions

Expected term (in years)	2.0
Expected volatility	29.0	%
Risk-free interest rate	0.7	%

Aggregate Allocation of the Purchase Price for 2010 Acquisitions, excluding Isilon, to Intangible Assets

Developed technology (weighted-average useful life of 4.7 years)	$	158,860
Customer relationships (weighted-average useful life of 6.4 years)		74,280
Tradename and trademark (weighted-average useful life of 2.5 years)		12,620
Other (weighted-average useful life of 2.1 years)		3,379
Total intangible assets	$	249,139

Allocation of Data Domain Purchase Price

Trade accounts receivable (approximates contractual value)	$	72,455
Other current assets		9,275
Property and equipment		40,403
Intangible assets:
Developed technology (weighted-average useful life of 2.6 years)		106,300
Customer maintenance relationships (weighted-average useful life of 5.8 years)		133,700
Customer product relationships (weighted-average useful life of 4.2 years)		111,500
Tradename (weighted-average useful life of 2.0 years)		6,400
IPR&D		174,600
Total intangible assets		532,500
Other long-term assets		60
Goodwill		1,658,321
Current liabilities		(67,212)
Income tax payable		(4,671)
Deferred revenue		(60,800)
Deferred income taxes		(152,818)
Long-term liabilities		(10,243)
Total purchase price	$	2,017,270

Fair Value of Stock Options for Acquisitions Weighted-Average Assumptions in 2009

Expected term (in years)	2.3
Expected volatility	37.2	%
Risk-free interest rate	1.2	%

Aggregate Allocation of the Purchase Price for All 2009 Acquisitions to Intangible Assets

Developed technology (weighted-average useful life of 3.5 years)	$	141,000
Customer relationships (weighted-average useful life of 6.1 years)		291,800
Tradename and trademark (weighted-average useful life of 5.6 years)		13,770
Non-competition agreements (weighted-average useful life of 2.5 years)		1,200
IPR&D		174,600
Total intangible assets	$	622,370