ALLOWANCE FOR CREDIT LOSSES: (Tables)

6 Months Ended

Sep. 30, 2020

Credit Loss [Abstract]

Accounts Receivable, Allowance for Credit Loss

A summary of the activity of the allowance for doubtful accounts, returns and credits was (dollars in thousands):

For the six months ended:	Balance at beginning of period		Additions charged to costs and expenses		Other changes		Bad debts written off, net of amounts recovered		Balance at end of period
September 30, 2020	$	7,575	$	2,522	$	56	$	(1,141)	$	9,012