Business Acquisition (Details) (USD $)			3 Months Ended			6 Months Ended	3 Months Ended			3 Months Ended
	Jun. 30, 2012	Jun. 30, 2012 Completed Technology [Member]	Jun. 30, 2012 Customer Relationships [Member] Y	Jun. 30, 2012 Non-Compete Agreements [Member] Y	Jun. 30, 2012 Trademarks and Trade Names [Member] Y	Jun. 30, 2012 Blaze and Contendo [Member]	Jun. 30, 2012 Cotendo Acquisition [Member] Y	Mar. 31, 2012 Cotendo Acquisition [Member]	Mar. 06, 2012 Cotendo Acquisition [Member]	Jun. 30, 2012 Cotendo Acquisition [Member] Completed Technology [Member] Y	Jun. 30, 2012 Cotendo Acquisition [Member] Customer Relationships [Member] Y	Jun. 30, 2012 Cotendo Acquisition [Member] Non-Compete Agreements [Member] Y	Jun. 30, 2012 Cotendo Acquisition [Member] Trademarks and Trade Names [Member] Y	Jun. 30, 2012 Blaze Acquisition [Member] Y	Mar. 31, 2012 Blaze Acquisition [Member]
Business Acquisition [Line Items]
Acquisition related costs						$ 4,800,000
Total purchase consideration									278,877,000					19,300,000
Business acquisition purchase price allocation for goodwill							40,000	241,646,000	241,686,000						15,068,000
Identifiable intangible assets									43,800,000						5,100,000
Weighted Average Amortization period (in years)			9	6	10		7.1			6	9	6	10	5.3
Goodwill, expected tax deductible amount							55,800,000							13,500,000
Current assets, including cash and cash equivalents of $6,405									6,751,000
Trade receivables									2,920,000
Property and equipment									5,812,000
Indemnification assets									6,200,000
Long-term assets									75,000
Deferred tax liabilities									(22,934,000)
Other liabilities assumed									(5,433,000)
Gross carrying amount, intangible assets	$ 43,800,000	$ 24,100,000	$ 13,400,000	$ 3,900,000	$ 2,400,000
Weighted average cost of capital							15.00%
Royalty rate for intangible assets										.15			.01
Discount rate							.16
Tax rate for Intangible Assets							.385