PROPERTY, PLANT AND EQUIPMENT	3 Months Ended
PROPERTY, PLANT AND EQUIPMENT	Jun. 30, 2012
Property, Plant and Equipment [Abstract]
PROPERTY, PLANT AND EQUIPMENT	PROPERTY, PLANT AND EQUIPMENT In accordance with our policy, we review the estimated useful lives of our fixed assets on an ongoing basis. This review indicated that the actual lives of certain equipment placed at customers locations were longer than the estimated useful lives used for depreciation purposes in our financial statements. As a result, effective April 1, 2012, we changed our estimates of the useful lives of our machinery and equipment to better reflect the estimated periods during which these assets will remain in service. The equipment that previously had weighted average useful lives of six years were determined to now have weighted average useful lives of seven years. The effect of this change in estimate will reduce fiscal year 2013 depreciation expense by $4.5 million, or $1.1 million a quarter increase 2013 net income by $4.5 million ($3.3 million net of taxes) and increase fiscal 2013 basic and diluted earnings per share by $0.13 or $0.03 a quarter.

The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures.

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