Acquisitions (Tables)

12 Months Ended

Dec. 31, 2011

BakBone Software Incorporated [Member]

Business Acquisition [Line Items]

Allocation Of Purchase Price To Assets And Liabilities

Current assets	$	12,479
Acquired technologies with a weighted average useful life of 5.2 years		24,500
In-process research and development		400
Customer relationships with a useful life of 4.0 years		11,300
Trademarks and trade names with a useful life of 10.0 years		1,800
Goodwill		18,690
Deferred income tax assets – non-current		9,872
Other non-current assets		2,419
Current liabilities		(6,328)
Deferred revenue – current		(9,383)
Deferred revenue – non-current		(9,491)
Other long-term liabilities		(278)
Total purchase price	$	55,980

Smarsh, Inc. [Member]

Business Acquisition [Line Items]

Allocation Of Purchase Price To Assets And Liabilities

Current assets	$	6,974
Acquired technologies with a useful life of 5 years		12,000
In-process research and development		1,900
Customer relationships with a useful life of 15 years		26,000
Trade names with a useful life of 10 years		2,400
Goodwill		48,281
Other non-current assets		4,958
Current liabilities		(2,017)
Deferred income tax liabilities – non-current		(18,040)
Other long-term liabilities		(36)
Redeemable noncontrolling interest		(13,836)
Noncontrolling interest		(13,022)
Total purchase price	$	55,562

Volcker Informatik AG [Member]

Business Acquisition [Line Items]

Allocation Of Purchase Price To Assets And Liabilities

Current assets	$	2,823
Acquired technologies with a useful life of 4.5 years		5,416
Customer relationships with a useful life of 4.5 years		3,401
Goodwill		13,930
Other non-current assets		490
Current liabilities		(1,246)
Deferred income tax liabilities – non-current		(2,645)
Total purchase price	$	22,169

Surgient, Inc. [Member]

Business Acquisition [Line Items]

Allocation Of Purchase Price To Assets And Liabilities

Current assets	$	789
Acquired technologies with a useful life of 3.5 years		1,030
In-process research and development		120
Customer relationships with a useful life of 3.5 years		1,240
Goodwill		26,011
Deferred income tax assets – non-current		9,178
Other non-current assets		1,271
Deferred revenue – current		(2,943)
Other current liabilities		(1,124)
Deferred revenue – non-current		(572)
Total purchase price	$	35,000

PacketTrap Networks, Inc. [Member]

Business Acquisition [Line Items]

Allocation Of Purchase Price To Assets And Liabilities

Current assets	$	51
Acquired technologies with a useful life of 3.0 years		1,500
In-process research and development		1,100
Trade name with an indefinite useful life		800
Customer relationships		100
Non-compete agreements with a useful life of 3.0 years		650
Goodwill		9,985
Other non-current assets		875
Current liabilities		(61	)
Total purchase price	$	15,000