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BASIS OF PRESENTATION - Schedule of New Accounting Pronouncements and Changes in Accounting Principles (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | Dec. 31, 2013
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |  |  |
Cost of goods sold | $ 85,974 | $ 81,767 | [1] | $ 255,333 | $ 243,208 | [1] |  |
Selling, general and administrative | 109,896 | 99,794 | [1] | 333,487 | 306,037 | [1] |  |
Income tax expense (benefit) | 1,736 | (6,352) | [1] | 5,866 | (9,172) | [1] |  |
Net income (loss) | 9,807 | (30,330) | [1] | 16,838 | (34,838) | [1] |  |
Earnings Per Share, Basic | $ 0.30 | $ (1.09) | [1] | $ 0.52 | $ (1.25) | [1] |  |
Earnings Per Share, Diluted | $ 0.30 | $ (1.09) | [1] | $ 0.51 | $ (1.25) | [1] |  |
Comprehensive income (loss) (See Note 11) | (6,364) | (21,640) | [1] | 1,593 | (30,754) | [1] |  |
Inventories, net | 230,455 |  |  | 230,455 |  |  | 206,919 | [1]
Deferred tax assets | 44,276 |  |  | 44,276 |  |  | 48,616 | [1]
Prepaid expenses and other current assets | 26,886 |  |  | 26,886 |  |  | 26,858 | [1]
Retained earnings | 297,794 |  |  | 297,794 |  |  | 280,956 | [1]
Increase (Decrease) in Inventories |  |  |  | (26,648) | (28,765) | [1] |  |
Increase (Decrease) in Prepaid Expense and Other Assets |  |  |  | 6,628 | (694) | [1] |  |
Scenario, Previously Reported [Member] |  |  |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |  |  |
Cost of goods sold |  | 84,101 |  |  | 247,437 |  |  |
Selling, general and administrative |  | 95,933 |  |  | 295,713 |  |  |
Income tax expense (benefit) |  | (6,605) |  |  | (8,755) |  |  |
Net income (loss) |  | (28,550) |  |  | (29,160) |  |  |
Earnings Per Share, Basic |  | $ (1.02) |  |  | $ (1.05) |  |  |
Earnings Per Share, Diluted |  | $ (1.02) |  |  | $ (1.05) |  |  |
Comprehensive income (loss) (See Note 11) |  | (19,860) |  |  | (25,076) |  |  |
Inventories, net |  |  |  |  |  |  | 213,431 |
Deferred tax assets |  |  |  |  |  |  | 46,300 |
Prepaid expenses and other current assets |  |  |  |  |  |  | 26,752 |
Retained earnings |  |  |  |  |  |  | 285,046 |
Increase (Decrease) in Inventories |  |  |  |  | (34,855) |  |  |
Increase (Decrease) in Prepaid Expense and Other Assets |  |  |  |  | (282) |  |  |
Restatement Adjustment [Member] |  |  |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |  |  |
Cost of goods sold |  | (2,334) |  |  | (4,229) |  |  |
Selling, general and administrative |  | 3,861 |  |  | 10,324 |  |  |
Income tax expense (benefit) |  | 253 |  |  | (417) |  |  |
Net income (loss) |  | (1,780) |  |  | (5,678) |  |  |
Comprehensive income (loss) (See Note 11) |  | (1,780) |  |  | (5,678) |  |  |
Inventories, net |  |  |  |  |  |  | (6,512) |
Deferred tax assets |  |  |  |  |  |  | 2,316 |
Prepaid expenses and other current assets |  |  |  |  |  |  | 106 |
Retained earnings |  |  |  |  |  |  | (4,090) |
Increase (Decrease) in Inventories |  |  |  |  | 6,090 |  |  |
Increase (Decrease) in Prepaid Expense and Other Assets |  |  |  |  | $ (412) |  |  |
[1] | See Note 1 of these condensed consolidated financial statements for discussion of the impact of the change in accounting for the medical device excise tax.

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