INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Mar. 31, 2016 |
Mar. 31, 2015 |
Mar. 31, 2014 |
|
| Income Tax Disclosure [Abstract] | |||
| Federal statutory rate (as a percent) | 35.00% | ||
| Increase (decrease) in valuation allowance | $ (28,300) | $ (8,900) | $ (8,000) |
| Increase in balances related to tax positions taken in prior period | 411 | $ 0 | $ 388 |
| Total unrecognized tax benefit including interest and penalties | 34,100 | ||
| Accrued interest and penalties | 1,200 | ||
| Federal net operating loss | 351,100 | ||
| Tax credit carryforwards | 90,400 | ||
| Federal net operating loss carryforwards attributable to excess tax deductions from stock option exercises | 34,300 | ||
| Acquired net operating losses included in carryforwards | 11,100 | ||
| Acquired credits included in carryforwards | $ 10,700 | ||
| X | ||||||||||
- Definition Operating Loss Carryforwards Acquired. No definition available.
|
| X | ||||||||||
- Definition Operating Loss Carry Forwards Attributable To Excess Tax Deductions. No definition available.
|
| X | ||||||||||
- Definition Tax credit carryforward acquired amount. No definition available.
|
| X | ||||||||||
- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|