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CASH FLOW INFORMATION - SUPPLEMENTAL	6 Months Ended
CASH FLOW INFORMATION - SUPPLEMENTAL	Sep. 30, 2018
Supplemental Cash Flow Elements [Abstract]
CASH FLOW INFORMATION - SUPPLEMENTAL	(B) CASH FLOW INFORMATION—SUPPLEMENTAL Cash payments made for interest were $13.9 million and $14.6 million for the six months ended September 30, 2018 and 2017, respectively. Net payments made for federal and state income taxes during the six months ended September 30, 2018 and 2017 were $27.4 million and $52.4 million, respectively. We have excluded approximately $5.2 million of non-cash investing activities from the September 30, 2017 Unaudited Consolidated Statement of Cash Flows. The amounts excluded related to fixed asset additions that were accrued at September 30, 2017, and paid during October 2017.