Subsequent Event (Details) (Subsequent Event, USD $) In Millions, unless otherwise specified	0 Months Ended
	Oct. 31, 2013
Subsequent Event [Line Items]
Borrowing capacity	$ 125
Term Loan
Subsequent Event [Line Items]
Borrowing capacity	65
Revolving Facility
Subsequent Event [Line Items]
Borrowing capacity	60
Amount drawn down	35
Enterasys Networks, Inc.
Subsequent Event [Line Items]
Purchase price paid in acquisition	$ 180