Stock-Based Compensation Outstanding Stock Options (Details 2) (Employee Stock Option, USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Mar. 31, 2014	Mar. 31, 2013
Employee Stock Option
Stock based compensation disclosure
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	5,444	6,213	4,801	5,361
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	$ 44.14	$ 50.07	$ 43.02	$ 53.13
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	916	1,215
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	$ 47.64	$ 33.64
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	(236)	(262)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price	$ 30.84	$ 29.95
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period	(37)	(101)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price	$ 70.04	$ 67.42