Stockholders' Equity - Stock Options (Details) $ / shares in Units, shares in Thousands, $ in Millions	6 Months Ended
	Sep. 30, 2015 USD ($) Approved_Plan $ / shares shares
Equity [Abstract]
Number of stockholder-approved plans | Approved_Plan	2
Number of plans unapproved by stockholders | Approved_Plan	1
Schedule of Option Activity Under Stock Incentive Plans
Number of Shares, Outstanding at the beginning of the year (in shares) | shares	1,794
Number of Shares, Granted (in shares) | shares	0
Number of Shares, Exercised (in shares) | shares	(25)
Number of Shares, Forfeited (in shares) | shares	(99)
Number of Shares, Outstanding at the end of the period (in shares) | shares	1,670
Number of Shares, Vested at the end of the period (in shares) | shares	1,670
Number of Shares, Vested and exercisable at end of period (in shares) | shares	1,670
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)	$ 9.15
Weighted Average Exercise Price Per Share, Granted (USD per share)	0.00
Weighted Average Exercise Price Per Share, Exercised (USD per share)	5.23
Weighted Average Exercise Price Per Share, Forfeited (USD per share)	10.65
Weighted Average Exercise Price Per Share, Outstanding at the end of the period (USD per share)	9.12
Weighted Average Exercise Price Per Share, Vested at the end of the period (USD per share)	9.12
Weighted Average Exercise Price Per Share, Vested and exercisable at the end of the period (USD per share)	$ 9.12
Weighted average remaining contractual term for options outstanding at end of period (in years)	1 year 4 months 24 days
Weighted Average Remaining Contractual Life, Vested and Exercisable at Period End (in years)	1 year 4 months 24 days
Weighted Average Remaining Contractual Life, Vested and expected to vest at end of period (in years)	1 year 4 months 24 days
Aggregate pretax intrinsic value of options exercised | $	$ 0.0	[1]
Aggregate intrinsic value of options outstanding at end of period | $	0.0	[2]
Aggregate intrinsic value of options, Vested and exercisable at end of period | $	0.0	[2]
Aggregate intrinsic value of options, Vested and expected to vest at end of period | $	$ 0.0	[2]
Common stock, closing price per share (USD per share)	$ 5.31

[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 September 30, 2015 and the exercise price of the shares. The closing price of the Company’s common stock was $5.31 per share on September 30, 2015.