Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0000711065 (http://www.sec.gov/CIK)

Equity [Abstract]	Period [Axis]
	2015-04-01 - 2016-03-31
Equity [Abstract]
Schedule of Option Activity Under Stock Incentive Plans	A summary of the Company's stock option activities and related information is as follows:   Number of Shares (thousands)   Weighted Average Exercise Price Per Share   Weighted-Average Remaining Contractual Term (years)   Aggregate Intrinsic Value (millions)   Outstanding as of March 31, 2013 3,492   $ 10.26           Granted 40   $ 7.35           Exercised (662 )   $ 9.36       $ 1.8 (1) Cancelled (461 )   $ 12.35           Outstanding as of March 31, 2014 2,409   $ 10.06           Granted —   $ —           Exercised (53 )   $ 6.32       $ 0.2 (1) Cancelled (562 )   $ 13.31           Outstanding as of March 31, 2015 1,794   $ 9.15       Granted —   —       Exercised (25 )   $ 5.23     $ — (1) Cancelled (198 )   $ 11.48       Outstanding, vested and exercisable as of March 31, 2016 1,571   $ 8.92   0.99   $ 0.1 (2) (1) The aggregate pre-tax intrinsic value is calculated as the difference between the market value on the date of exercise and the exercise price of the shares. (2) The aggregate pre-tax intrinsic value is calculated as the difference between the market value as of March 31, 2016 and the exercise price of the shares. The closing price of the Company’s common stock was $6.46 on March 31, 2016.
Schedule of Restricted Stock Unit Activity	A summary of the Company's RSU activities and related information is as follows :   Number of Shares (thousands)   Weighted Average Grant Date Fair Value Unvested as of March 31, 2013 6,444   $ 8.91 Awarded 3,594   $ 8.88 Vested (2,397 )   $ 7.96 Cancelled (1,536 )   $ 8.97 Unvested as of March 31, 2014 6,105   $ 9.25 Awarded 3,783   $ 7.82 Vested (1,639 )   $ 8.91 Cancelled (3,921 )   $ 9.41 Unvested as of March 31, 2015 4,328   $ 7.98 Awarded 4,391   $ 6.00 Vested (2,921 )   $ 7.50 Cancelled (1,094 )   $ 7.30 Unvested as of March 31, 2016 4,704   $ 6.59
Common Shares Reserved for Issuance	At March 31, 2016, the Company had the following shares of common stock reserved for issuance upon the exercise of equity instruments (in thousands): Options granted and outstanding 1,571 RSUs granted and outstanding 4,704 Options and RSUs authorized for future grants 2,836 Employee Stock Purchase Plan 1,214 Total common stock reserved for issuance 10,325