Provision for Taxes (Earnings before taxes and provision for taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Pretax earnings:
U.S.	$ 609,589	$ 745,194	$ 541,371
Non-U.S.	18,769	23,717	20,047
Total pretax earnings	628,358	768,911	561,418
Current provision (benefit)
Federal	38,723	118,974	112,634
State	10,818	15,988	14,248
Non-U.S.	3,334	3,303	2,599
Current provision (benefit), total	52,875	138,265	129,481
Deferred provision (benefit)
Federal	160,527	125,950	67,306
State	15,210	12,561	5,256
Non-U.S.	1,322	3,134	2,634
Deferred provision (benefit), total	177,059	141,645	75,196
Provision for income tax expense	229,934	279,910	204,677
Income taxes paid (net of income tax refunds)	$ 36,880	$ 141,901	$ 195,072

The component of income tax expense for the period representing the increase (decrease) in the entity's deferred tax assets and liabilities pertaining to continuing operations. This amount differs from the Cash Flow concept of the same name, thus an extended concept is needed. This amount is the actual tax expense associated with the corporation, while the Cash Flow provides the increase (decrease) of the deferred tax.

No definition available.