ALLOWANCE FOR DOUBTFUL ACCOUNTS:

6 Months Ended

Sep. 30, 2016

ALLOWANCE FOR DOUBTFUL ACCOUNTS:

ALLOWANCE FOR DOUBTFUL ACCOUNTS:

8.ALLOWANCE FOR DOUBTFUL ACCOUNTS:

Trade accounts receivable are presented net of allowances for doubtful accounts, returns and credits of $5.9 million at September 30, 2016 and $7.3 million at March 31, 2016.