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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 |  |  |  |  |  |  |  |  |

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