Stockholders' Equity - Additional Information (Detail) (USD $)	3 Months Ended	12 Months Ended			24 Months Ended			12 Months Ended		0 Months Ended
	Mar. 30, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2010	Dec. 31, 2013	Dec. 31, 2010 Omneon [Member]	Jul. 31, 2002 Series A Participating Preferred Stock [Member]	Dec. 31, 2010 Common Stock [Member] Acquisition of Omneon [Member]	Dec. 31, 2013 Open Market Transaction [Member]	May 24, 2013 Dutch Auction Tender Offer [Member]	May 24, 2013 Additional Paid-in Capital [Member] Dutch Auction Tender Offer [Member]
Class of Stock [Line Items]
Preferred stock authorized		5,000,000	5,000,000		5,000,000		100,000
Stockholder rights plan, period		10 years
Stockholder rights plan, expiry date		July 2012
Common stock, shares issued								14,150,122
Purchase price paid as common stocks								$ 95,900,000
Cash deposited to secure post-closing indemnification obligations of holders						21,000,000
Number of common stock deposited to secure post-closing indemnification obligations of holders				1,926,920
Reimbursement received from escrow in cash	500,000
Reimbursement received from escrow common stock value	300,000
Claim for reimbursement received from escrow	800,000
Reimbursement received from escrow common stock shares	40,372
Authorized stock repurchase value		220,000,000	25,000,000
Common stock repurchased and retired, shares			5,100,000		23,400,000				6,300,000	12,000,000
Common stock repurchased and retired, per shares value			$ 4.43						$ 6.48	$ 6.25
Common stock repurchased and retired, aggregate value			22,600,000		138,200,000				40,600,000	76,000,000	1,000,000
Increase in stock repurchase program		195,000,000
Common stock repurchases program expire date		December 2014
Common stock repurchase program, authorized amount remaining		$ 81,800,000