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Operating Segments
6 Months Ended
Sep. 30, 2011
Operating Segments [Abstract] 
Operating Segments
NOTE 12.
OPERATING SEGMENTS

The principal approach used by management to evaluate the Company's performance is by geographic region, although some components of the business are evaluated on the basis of their worldwide operations.  The Company evaluates the performance of its segments based on operating income after allocated overhead expenses (excluding significant non-recurring charges or credits), plus equity in pretax earnings of unconsolidated affiliates.

Operating results for the Company's reportable segments for each period presented in the consolidated statements of income and retained earnings were as follows: