Stock-Based Compensation (Tables)

6 Months Ended

Sep. 30, 2013

Stock-based Compensation Disclosure [Abstract]

Stock Option Transactions

	Six Months Ended September 30,
	2013				2012
	Number of Shares		Weighted-Average Exercise Price Per Share		Number of Shares		Weighted-Average Exercise Price Per Share
Options outstanding at March 31	5,361		$	53.13	5,624		$	57.78
Granted	1,215		33.64		966		23.72
Exercised	(405	)	29.64		(1	)	23.72
Canceled/forfeited	(881	)	99.98		(578	)	56.37
Options outstanding at September 30	5,290		$	42.65	6,011		$	52.44

Management [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Assumptions used to determine the weighted-average fair value of option grants

	Six Months Ended September 30,
	2013		2012
Expected dividend yield	1.54	%	1.44	%
Risk-free interest rate	0.80	%	0.81	%
Expected volatility	45.08	%	51.80	%
Expected life (in years)	4.93		5.02

Chief Executive Officer [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Assumptions used to determine the weighted-average fair value of option grants

Expected dividend yield	1.48	%
Risk-free interest rate	0.86	%
Expected volatility	44.05	%

Holders of restricted stock [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Restricted stock and restricted stock unit transactions

	Six Months Ended September 30,
	2013				2012
	Number of Shares		Weighted-Average Grant Date Value		Number of Shares		Weighted-Average Grant Date Value
Unvested shares at March 31	3,738		$	27.99	2,873		$	33.83
Granted	1,289		35.16		2,183		24.04
Vested	(1,308	)	28.91		(903	)	32.26
Canceled/forfeited	(141	)	28.91		(37	)	29.74
Unvested shares at September 30	3,578		$	30.20	4,116		$	29.02