Summary of Significant Accounting Policies Change in Accounting Estimate (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended	9 Months Ended
	Dec. 31, 2013	Dec. 31, 2013
Accounting Policies [Abstract]
Accelerated Amortization of Intangible Assets	$ 1.6	$ 1.6
Effect of Accelerated Depreciation on Earnings Per Share	$ 0.07	$ 0.07