Business Combinations (Preliminary Allocation) (Details) (Enterasys Networks, Inc., USD $) In Thousands, unless otherwise specified	0 Months Ended		6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014
Enterasys Networks, Inc.
Business Acquisition [Line Items]
Cash, Beginning	$ 7,397		$ 4,969
Cash			2,428
Cash, End	7,397	4,969	7,397
Receivables, Beginning	23,271		25,699
Receivables			(2,428)
Receivables, End	23,271	25,699	23,271
Inventory, Beginning	33,662		33,662
Inventory			0
Inventory, End	33,662	33,662	33,662
Other Current Assets, Beginning	7,374		8,888
Other Current Assets			(1,514)
Other Current Assets, End	7,374	8,888	7,374
Property and equipment, End	21,293	23,122	21,293
Property and equipment			(1,829)
Property and equipment, Beginning	21,293		23,122
Identifiable Intangible Assets, Beginning	108,900		108,900
Identifiable Intangible Assets			0
Identifiable Intangible Assets, End	108,900	108,900	108,900
In-process research and development, Beginning	3,000		3,000
In-process research and development			0
In-process research and development, End	3,000	3,000	3,000
Deferred tax assets, Beginning	9		9
Deferred tax assets			0
Deferred tax assets, End	9	9	9
Other assets, Beginning	7,343		7,343
Other assets			0
Other assets, End	7,343	7,343	7,343
Goodwill, Beginning	70,877		57,922
Goodwill			12,955
Goodwill, End	70,877	57,922	70,877
Current Liabilities, Beginning	(81,535)		(75,394)
Current Liabilities			(6,141)
Current Liabilities, End	(81,535)	(75,394)	(81,535)
Other long-term liabilities, Beginning	(14,194)		(13,151)
Other long-term liabilities			(1,043)
Other long-term liabilities, End	(14,194)	(13,151)	(14,194)
Total purchase price allocation, Beginning	187,397	184,969	187,397
Total purchase price allocation			2,428
Total purchase price allocation, End	187,397	184,969	187,397
Less: Cash acquired from acquisition, Beginning	(7,397)	(4,969)
Less: Cash acquired from acquisition			(2,428)
Less: Cash acquired from acquisition, Ending	(7,397)	(4,969)
Total purchase price consideration, net of cash acquired, net of cash acquired, Beginning	180,000	180,000	180,000
Total purchase price consideration, net of cash acquired			0
Total purchase price consideration, net of cash acquired, End	$ 180,000	$ 180,000	$ 180,000