Capital Stock Schedule of Sommon Stock Outstanding Roll Forward (Details 2) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Capital Unit [Line Items]
Shares repurchased and retired	(9,677)	(16,199)	(13,597)
Common Stock
Capital Unit [Line Items]
Beginning balance	125,341	139,874	150,219
Stock option exercises and other stock-based compensation	839	80	172
Deferred compensation employee stock trust	50	71	68
Deferred compensation, net	1,175	1,925	1,246
Shares repurchased and retired	(9,677)	(16,199)	(13,597)
Employee tax withholding by settlement of net share transactions	(555)	(410)	(64)
Equity Units exchanged	0	0	1,830
Ending balance	117,173	125,341	139,874