Acquisitions (Details Textual) (USD $)
Share data in Thousands, unless otherwise specified |
0 Months Ended | 1 Months Ended | 0 Months Ended | 1 Months Ended | 0 Months Ended | 1 Months Ended | 0 Months Ended | |||||
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Sep. 30, 2012
|
Jan. 10, 2011
Epicentre [Member]
years
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Sep. 19, 2012
BlueGnome [Member]
|
Jan. 31, 2011
Customer Relationships [Member]
Epicentre [Member]
|
Jan. 10, 2011
Customer Relationships [Member]
Epicentre [Member]
|
Sep. 19, 2012
Customer Relationships [Member]
BlueGnome [Member]
|
Jan. 31, 2011
Developed Technology Rights [Member]
Epicentre [Member]
|
Jan. 10, 2011
Developed Technology Rights [Member]
Epicentre [Member]
|
Sep. 19, 2012
Developed Technology Rights [Member]
BlueGnome [Member]
|
Jan. 31, 2011
Trade Names [Member]
Epicentre [Member]
|
Jan. 10, 2011
Trade Names [Member]
Epicentre [Member]
|
Sep. 19, 2012
Trade Names [Member]
BlueGnome [Member]
|
|
Acquisition Details (Textual) [Abstract] | ||||||||||||
Business acquisition total consideration | $ 71,400,000 | $ 95,500,000 | ||||||||||
Business acquisition net cash consideration | 59,400,000 | 88,000,000 | ||||||||||
Fair value of contingent consideration to be settled in stock | 4,600,000 | |||||||||||
Fair value of contingent consideration to be settled in cash | 7,400,000 | 7,500,000 | ||||||||||
Contingent consideration payments, maximum | 15,000,000 | 20,000,000 | ||||||||||
Shares issued to shareholders in connection with business acquisition (in shares) | 229 | |||||||||||
Portion of shares issued included in purchase price | 33.33% | |||||||||||
Fair value of shares as contingent compensation for post acquisition service | 10,100,000 | |||||||||||
Recognition period of fair value of shares as contingent compensation for post acquisition service (in years) | 2 | |||||||||||
Discount rate for assessment of the acquisition date fair value | 21.00% | 30.00% | ||||||||||
Fair value of contingent compensation | 20,000,000 | |||||||||||
Total consideration to tangible assets, net of liabilities | 900,000 | 9,800,000 | ||||||||||
Consideration to identified intangible assets | 26,900,000 | 49,200,000 | 1,100,000 | 17,100,000 | 23,300,000 | 25,000,000 | 2,500,000 | 7,100,000 | ||||
Weighted average useful life of identified intangible assets (in years) | 3 years | 7 years | 9 years | 7 years | 10 years | 10 years | ||||||
Deferred tax liabilities related to intangible ssets | 11,800,000 | |||||||||||
Excess consideration recorded as goodwill | 43,600,000 | 48,300,000 | ||||||||||
Remaining potential payment of contingent compensation related to acquisitions prior to 2011 | $ 1,400,000 |