Acquisitions (Details Textual) (Omneon [Member], USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended
	Mar. 30, 2012	Dec. 31, 2010	Sep. 15, 2010
Omneon [Member]
Acquisitions (Textual) [Abstract]
Purchase price paid as net of cash			$ 194.0
Number of common stocks paid as purchase price		17,128,176
Cash deposited to secure post closing indemnification obligations of holders			21.0
Number of common stocks deposited to secure post closing indemnification obligations of holders		1,926,920
Indemnification period end date	Mar. 15, 2012
Reimbursement amount received from escrow	0.8
Reimbursement amount received from escrow in cash	0.5
Reimbursement amount received from escrow in common stock, Shares	40,372
Reimbursement amount received from escrow common stock, Amount	$ 0.3