Stockholders' Equity - Stock Options (Details) $ / shares in Units, shares in Thousands, $ in Millions	6 Months Ended
	Sep. 30, 2016 USD ($) Approved_Plan $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stockholder-approved plans | Approved_Plan	2
Number of plans unapproved by stockholders | Approved_Plan	1
Common stock, closing price per share (USD per share)	$ 6.95
Schedule of Option Activity Under Stock Incentive Plans
Number of Shares, Outstanding at the start of the period (in shares) | shares	1,571
Number of Shares, Granted (in shares) | shares	0
Number of Shares, Exercised (in shares) | shares	(23)
Number of Shares, Forfeited (in shares) | shares	(855)
Number of Shares, Outstanding at the end of the period (in shares) | shares	693
Aggregate pretax intrinsic value of options exercised | $	$ 0.0	[1]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	1 year 4 months 17 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value | $	$ 0.0	[2]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest [Abstract]
Number of Shares vested and exercisable at end of period (in shares) | shares	693
Weighted Average Exercise Price Per Share, vested and exercisable at the end of the period (USD per share)	$ 9.58
Weighted Average Remaining Contractual Life, vested and exercisable at end of period (in years)	1 year 4 months 17 days
Aggregate intrinsic value of options, vested and exercisable at end of period | $	$ 0.0	[2]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted Average Exercise Price Per Share, Outstanding at the start of the period (USD per share)	$ 8.92
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)	8.49
Weighted Average Exercise Price Per Share, Outstanding at the end of the period (USD per share)	$ 9.58
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period, in years	4 years
Stock options | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period, in years	8 years
Stock options | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period, in years	10 years

[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, 2016 and the exercise price of the shares. The closing price of the Company’s common stock was $6.95 per share on September 30, 2016.