Stockholders' Equity - Stock Options (Details) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Mar. 31, 2015 Approved_Plan		Mar. 31, 2014		Mar. 31, 2013
Equity [Abstract]
Number of stockholder-approved plans	2
Number of plans unapproved by stockholders	1
Schedule of Option Activity Under Stock Incentive Plans
Number of Shares, Outstanding at the beginning of the year	2,409		3,492		4,164
Number of shares, Granted	0		40		40
Number of Shares, Exercised	(53)		(662)		(161)
Number of Shares, Forfeited	(562)		(461)		(551)
Number of Shares, Outstanding at the end of the period	1,794		2,409		3,492
Number of Shares, Vested at the end of the period	1,794
Number of Shares, Vested and exercisable at the end of the period	1,794
Schedule of Weighted Average Exercise Price Per Share Under Stock Incentive Plans
Weighted Average Exercise Price Per Share, Outstanding at the beginning of the year (USD per share)	$ 10.06		$ 10.26		$ 10.67
Weighted Average Exercise Price Per Share, Granted (USD per share)	$ 0.00		$ 7.35		$ 5.58
Weighted Average Exercise Price Per Share, Exercised (USD per share)	$ 6.32		$ 9.36		$ 5.31
Weighted Average Exercise Price Per Share, Forfeited (USD per share)	$ 13.31		$ 12.35		$ 14.49
Weighted Average Exercise Price Per Share, Outstanding at the end of the period (USD per share)	$ 9.15		$ 10.06		$ 10.26
Weighted Average Exercise Price Per Share, Vested at the end of the period (USD per share)	$ 9.15
Weighted Average Exercise Price Per Share, Vested and exercisable at the end of the period (USD per share)	$ 9.15
Weighted Average Remaining Contractual Life, Outstanding at Period End (in years)	1 year 10 months 12 days
Weighted Average Remaining Contractual Life, Vested and expected to vest at Period End (in years)	1 year 9 months 12 days
Weighted Average Remaining Contractual Life, Vested and Exercisable at Period End (in years)	1 year 10 months 12 days
Aggregate Intrinsic Value, Exercises in Period	$ 200,000	[1]	$ 1,800,000	[1]	$ 300,000	[1]
Aggregate Intrinsic Value, Outstanding at Period End	0	[2]
Aggregate Intrinsic Value, Vested and expected to vest at Period End	0.0	[2]
Aggregate Intrinsic Value, Vested and exercisable at Period End	$ 0.0	[2]
Common stock closing price per share	$ 5.10

[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 the end of the fiscal period and the exercise price of the shares. The closing price of the Company’s common stock was $5.10 on March 31, 2015.