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REVISION OF PRIOR PERIOD FINANCIAL STATEMENTS (Schedule of Revised Consolidated Statements of Operations) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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Mar. 31, 2014
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Dec. 31, 2013
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Sep. 30, 2013
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Jun. 30, 2013
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Mar. 31, 2013
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Dec. 31, 2012
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Sep. 30, 2012
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Jun. 30, 2012
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Mar. 31, 2014
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Mar. 31, 2013
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Mar. 31, 2012
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| Quantifying Misstatement in Current Year Financial Statements [Line Items] | |||||||||||
| Product revenue | $ 98,287 | $ 84,756 | $ 85,849 | $ 92,615 | $ 112,483 | $ 100,034 | $ 93,778 | $ 348,318 | $ 398,910 | $ 451,469 | |
| Royalty revenue | 57,648 | 44,492 | 56,154 | ||||||||
| Total revenue | 127,968 | 145,869 | 131,479 | 147,849 | 139,925 | 159,361 | 147,307 | 140,846 | 553,165 | 587,439 | 651,987 |
| Cost of service revenue | 19,708 | 19,360 | 20,232 | 20,304 | 75,930 | 79,604 | 88,466 | ||||
| Total cost of revenue | 82,341 | 91,367 | 88,116 | 85,054 | 313,545 | 346,878 | 378,542 | ||||
| Gross margin | 52,020 | 61,373 | 56,392 | 69,835 | 57,584 | 67,994 | 59,191 | 55,792 | 239,620 | 240,561 | 273,445 |
| Sales and marketing expenses | 34,400 | 33,588 | 34,441 | 34,444 | 118,771 | 136,873 | 131,239 | ||||
| General and administrative expenses | 14,261 | 14,795 | 14,689 | 15,230 | 14,810 | 15,238 | 16,739 | 57,865 | 62,017 | 62,666 | |
| Total operating expenses | 61,453 | 61,357 | 64,100 | 70,520 | 73,615 | 69,154 | 69,732 | 251,686 | 283,021 | 270,200 | |
| Income (loss) from operations | (80) | (4,965) | 5,735 | (12,936) | (5,621) | (9,963) | (13,940) | (11,799) | (42,460) | 4,745 | |
| Income (loss) before income taxes | (2,150) | (7,359) | 3,671 | (15,210) | (7,791) | (11,890) | (16,127) | (20,257) | (51,018) | (8,369) | |
| Net income (loss) | (14,404) | (2,458) | (7,893) | 3,281 | (15,154) | (8,139) | (12,260) | (16,626) | (21,474) | (52,179) | (9,256) |
| Diluted net income (loss) per share | $ (0.01) | $ (0.03) | $ 0.01 | $ (0.06) | $ (0.04) | $ (0.05) | $ (0.07) | $ (0.22) | $ (0.04) | ||
|
As Reported [Member]
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| Quantifying Misstatement in Current Year Financial Statements [Line Items] | |||||||||||
| Product revenue | 98,348 | 84,707 | 85,969 | 92,648 | 112,517 | 100,067 | 93,811 | 399,043 | 451,340 | ||
| Royalty revenue | 44,492 | 56,666 | |||||||||
| Total revenue | 145,930 | 131,430 | 147,969 | 139,958 | 159,395 | 147,340 | 140,879 | 587,572 | 652,370 | ||
| Cost of service revenue | 19,721 | 19,360 | 20,232 | 20,334 | 79,647 | 88,459 | |||||
| Total cost of revenue | 82,354 | 91,367 | 88,116 | 85,084 | 346,921 | 378,535 | |||||
| Gross margin | 61,434 | 56,343 | 69,955 | 57,604 | 68,028 | 59,224 | 55,795 | 240,651 | 273,835 | ||
| Sales and marketing expenses | 33,734 | 33,588 | 34,441 | 35,278 | 137,041 | 130,938 | |||||
| General and administrative expenses | 14,279 | 14,813 | 14,697 | 15,269 | 14,851 | 15,279 | 16,780 | 62,179 | 62,910 | ||
| Total operating expenses | 61,471 | 61,375 | 64,108 | 69,893 | 73,656 | 69,195 | 70,607 | 283,351 | 270,143 | ||
| Income (loss) from operations | (37) | (5,032) | 5,847 | (12,289) | (5,628) | (9,971) | (14,812) | (42,700) | 5,192 | ||
| Income (loss) before income taxes | (2,107) | (7,426) | 3,783 | (14,563) | (7,798) | (11,898) | (16,999) | (51,258) | (7,922) | ||
| Net income (loss) | $ (2,415) | $ (7,960) | $ 3,393 | $ (14,507) | $ (8,146) | $ (12,268) | $ (17,498) | $ (52,419) | $ (8,809) | ||
| Diluted net income (loss) per share | $ (0.01) | $ (0.03) | $ 0.01 | $ (0.06) | $ (0.04) | $ (0.05) | $ (0.07) | $ (0.22) | $ (0.04) | ||