DEBT (Tables)

6 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Information related to availability on Credit Agreement

Information related to availability on our Credit Agreement was as follows:

	September 30, 2018		March 31, 2018
Available borrowings	$	98,335	$	98,335
Outstanding letters of credit	1,664		1,664

Schedule of Components of Interest Expense Related to Convertible Debt

The following table provides the components of interest expense related to our 1.00% Convertible Notes:

	Three Months Ended September 30,				Six Months Ended September 30,
	2018		2017		2018		2017
Cash interest expense (coupon interest expense)	$	—	$	130	$	1	$	579
Non-cash amortization of discount on 1.00% Convertible Notes	—		8,678		91		13,915
Amortization of debt issuance costs	—		263		3		423
Total interest expense related to 1.00% Convertible Notes	$	—	$	9,071	$	95	$	14,917