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Restatement of the Consolidated Financial Statements - Additional Information (Detail) (USD $) | 0 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended |  | 12 Months Ended
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Jan. 02, 2010 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2011 | Sep. 30, 2011 | Jun. 30, 2011 | Mar. 31, 2011 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2012 Inventory Reserves [Member] | Dec. 31, 2011 Inventory Reserves [Member] | Dec. 31, 2012 Previously Reported [Member] | Sep. 30, 2012 Previously Reported [Member] | Jun. 30, 2012 Previously Reported [Member] | Mar. 31, 2012 Previously Reported [Member] | Dec. 31, 2011 Previously Reported [Member] | Sep. 30, 2011 Previously Reported [Member] | Jun. 30, 2011 Previously Reported [Member] | Mar. 31, 2011 Previously Reported [Member] | Dec. 31, 2012 Previously Reported [Member] | Dec. 31, 2011 Previously Reported [Member] | Dec. 31, 2010 Previously Reported [Member] | May 31, 2012 Term Loan Facility [Member] | May 31, 2012 Revolving Credit Facility [Member] | Dec. 31, 2012 Revolving Credit Facility [Member] | Dec. 31, 2012 Distributor Revenue [Member] Distributor | Dec. 31, 2011 Distributor Revenue [Member] | Dec. 31, 2012 Distributor Revenue [Member] Previously Reported [Member] | Dec. 31, 2011 Distributor Revenue [Member] Previously Reported [Member] | Dec. 31, 2010 Distributor Revenue [Member] Previously Reported [Member] | Dec. 31, 2012 Distributor Revenue [Member] Minimum [Member] | Dec. 31, 2012 Distributor Revenue [Member] Maximum [Member] | Dec. 31, 2012 Other [Member]
Increase (Decrease) in net sales |  |  |  |  |  |  |  |  |  | $ (14,700,000) | $ (28,200,000) | $ 1,900,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase (Decrease) in net income from continuing operations |  |  |  |  |  |  |  |  |  | (8,900,000) | (14,500,000) | 3,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase (Decrease) in retained earnings | 8,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase (Decrease) in total stockholders' equity | 7,600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Sales |  | 117,365,000 | 107,857,000 | 113,423,000 | 108,936,000 | 118,639,000 | 111,510,000 | 108,216,000 | 103,606,000 | 447,581,000 | 441,971,000 | 462,571,000 |  |  | 112,035,000 | 114,752,000 | 119,492,000 | 116,041,000 | 123,085,000 | 117,306,000 | 116,670,000 | 113,060,000 | 462,320,000 | 470,121,000 | 460,629,000 |  |  |  |  |  | 462,320,000 | 470,121,000 | 460,629,000 |  |  |
Percentage of net sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11.00% | 13.00% |
Number of distributer terminated |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |
Sales return |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,300,000 | 4,100,000 |  |  |  |  |  |
Distributors that did not meet the fixed or determinable or collectability revenue recognition criteria |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4 |  |  |  |  |  |  |
Increase (Decrease) in accounts receivable |  |  |  |  |  |  |  |  |  | 18,438,000 | (293,000) | 16,645,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (41,300,000) | (33,800,000) |  |  |  |  |  |
Increase (Decease) in inventory |  |  |  |  |  |  |  |  |  | 2,495,000 | 12,624,000 | (9,767,000) | (14,800,000) | (8,800,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11,000,000 | 8,800,000 |  |  |  |  |  |
Increase (Decrease) in inventory reserve |  |  |  |  |  |  |  |  |  |  |  |  | 1,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayment of debt obligation |  |  |  |  |  |  |  |  |  | 188,695,000 | 7,500,000 | 36,269,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | 87,500,000 |  |  |  |  |  |  |  |  |  |
Repayment of debt obligation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 57,500,000 | 20,000,000 |  |  |  |  |  |  |  |
Adjustment to reclassify interest expenses |  |  |  |  |  |  |  |  |  |  | 3,900,000 | 4,900,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase in cash flow related to operating activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,000,000
Decrease in cash flow related to financing activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (1,000,000)

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