REVISION OF PRIOR PERIOD FINANCIAL STATEMENTS (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mar. 31, 2017 |
Dec. 31, 2016 |
Sep. 30, 2016 |
Jun. 30, 2016 |
Mar. 31, 2016 |
Dec. 31, 2015 |
Sep. 30, 2015 |
Jun. 30, 2015 |
Sep. 30, 2016 |
Mar. 31, 2017 |
Mar. 31, 2016 |
Mar. 31, 2015 |
Mar. 31, 2014 |
|
| Error Corrections and Prior Period Adjustments Restatement [Line Items] | |||||||||||||
| Other current assets | $ 9,969 | $ 8,007 | $ 9,969 | $ 8,007 | |||||||||
| Total current assets | 188,325 | 212,645 | 188,325 | 212,645 | |||||||||
| Total assets | 225,027 | 230,600 | 225,027 | 230,600 | |||||||||
| Accumulated deficit | (593,295) | (596,940) | (593,295) | (596,940) | |||||||||
| Total stockholders’ deficit | (115,999) | (125,885) | (115,999) | (125,885) | $ (57,672) | $ (84,957) | |||||||
| Product cost of revenue | $ 53,073 | $ 47,244 | 231,207 | 207,139 | 237,400 | ||||||||
| Service cost of revenue | $ 14,664 | $ 15,506 | 15,239 | $ 15,550 | 17,838 | 17,152 | $ 30,170 | 60,714 | 65,778 | 70,686 | |||
| Cost of Revenue | 79,016 | 65,638 | 65,738 | 71,873 | 70,911 | 64,396 | 144,654 | 291,921 | 272,917 | 308,086 | |||
| Gross margin | 52,050 | $ 55,002 | 55,726 | 50,646 | 54,291 | 56,175 | 46,114 | 46,460 | 106,372 | 213,424 | 203,041 | 245,009 | |
| Operating Income (Loss) | 5,592 | (1,791) | (50,708) | 1,432 | (9,822) | (8,712) | 3,801 | 12,148 | (67,809) | 14,720 | |||
| Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest | 4,117 | (3,143) | (52,818) | (390) | (11,083) | (10,921) | 974 | 4,757 | (75,211) | 17,801 | |||
| Net income (loss) | $ 1,913 | 5,006 | 4,072 | (3,520) | (52,884) | (821) | (11,430) | (11,260) | 552 | $ 3,645 | (76,394) | 17,083 | |
| As Reported | |||||||||||||
| Error Corrections and Prior Period Adjustments Restatement [Line Items] | |||||||||||||
| Other current assets | 6,953 | 6,953 | |||||||||||
| Total current assets | 211,591 | 211,591 | |||||||||||
| Total assets | 229,546 | 229,546 | |||||||||||
| Accumulated deficit | (597,994) | (597,994) | |||||||||||
| Total stockholders’ deficit | (126,939) | (126,939) | |||||||||||
| Product cost of revenue | 53,073 | 46,964 | 206,859 | 237,679 | |||||||||
| Service cost of revenue | 14,910 | 15,781 | 14,757 | 15,028 | 17,635 | 16,927 | 30,691 | 64,347 | 70,730 | ||||
| Cost of Revenue | 79,262 | 65,913 | 65,256 | 71,351 | 70,708 | 63,891 | 145,175 | 271,206 | 308,409 | ||||
| Gross margin | 55,480 | 50,371 | 54,773 | 56,697 | 46,317 | 46,965 | 105,851 | 204,752 | 244,686 | ||||
| Operating Income (Loss) | 5,346 | (2,066) | (50,226) | 1,954 | (9,619) | (8,207) | 3,280 | (66,098) | 14,397 | ||||
| Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest | 3,871 | (3,418) | (52,336) | 132 | (10,880) | (10,416) | 453 | (73,500) | 17,478 | ||||
| Net income (loss) | 3,826 | (3,795) | (52,402) | (299) | (11,227) | (10,755) | 31 | (74,683) | 16,760 | ||||
| Adjustment | |||||||||||||
| Error Corrections and Prior Period Adjustments Restatement [Line Items] | |||||||||||||
| Other current assets | 1,054 | 1,054 | |||||||||||
| Total current assets | 1,054 | 1,054 | |||||||||||
| Total assets | 1,054 | 1,054 | |||||||||||
| Accumulated deficit | 1,054 | 1,054 | |||||||||||
| Total stockholders’ deficit | 1,054 | 1,054 | |||||||||||
| Product cost of revenue | 0 | 280 | 280 | (279) | |||||||||
| Service cost of revenue | (246) | (275) | 482 | 522 | 203 | 225 | (521) | 1,431 | (44) | ||||
| Cost of Revenue | (246) | (275) | 482 | 522 | 203 | 505 | (521) | 1,711 | (323) | ||||
| Gross margin | 246 | 275 | (482) | (522) | (203) | (505) | 521 | (1,711) | 323 | ||||
| Operating Income (Loss) | 246 | 275 | (482) | (522) | (203) | (505) | 521 | (1,711) | 323 | ||||
| Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest | 246 | 275 | (482) | (522) | (203) | (505) | 521 | (1,711) | 323 | ||||
| Net income (loss) | $ 246 | $ 275 | $ (482) | $ (522) | $ (203) | $ (505) | $ 521 | $ (1,711) | $ 323 | ||||
| Adjustment | Previously expensed costs for certain third party maintenance contracts | |||||||||||||
| Error Corrections and Prior Period Adjustments Restatement [Line Items] | |||||||||||||
| Accumulated deficit | $ 1,600 | ||||||||||||