ALLOWANCE FOR DOUBTFUL ACCOUNTS:

9 Months Ended

Dec. 31, 2017

Valuation and Qualifying Accounts [Abstract]

ALLOWANCE FOR DOUBTFUL ACCOUNTS:

ALLOWANCE FOR DOUBTFUL ACCOUNTS:

Trade accounts receivable are presented net of allowances for doubtful accounts, returns and credits of $6.3 million at December 31, 2017 and $6.1 million at March 31, 2017.