Debt (Tables)

12 Months Ended

Jun. 30, 2017

Debt

Schedule of carrying values of all Convertible Notes

        The following table presents the carrying values of all Convertible Notes and notes issued pursuant to the Revolving Credit Facility (collectively, "Notes") as of June 30, 2017 (in thousands):

	Revolving Loan		3.50% Convertible Notes			3.50% Series A Convertible Notes			Total
Carrying amount of equity conversion component	$	—	$	—		$	7,844		$	7,844
Principal amount of the Notes	$	51,548	$	44,654		$	70,346		$	166,548
Unamortized debt costs		—		(555	)		—			(555	)
Unamortized debt discount		—		—			(1,422	)		(1,422	)
Net carrying amount	$	51,548	$	44,099		$	68,924		$	164,571

Summary of interest expense on all Convertible Notes

        A summary of interest expense on the Notes is as follows (in thousands):

	Year ended June 30,
	2017(1)		2016		2015
Interest expense related to contractual interest coupon	$	9,465	$	9,411	$	7,774
Interest expense related to amortization of debt discount		4,052		6,321		7,241
Interest expense related to amortization of debt issuance costs		3,785		1,728		1,503
Total	$	17,302	$	17,460	$	16,518

(1)           Debt issuance costs were higher in fiscal year 2017 due to the repayment of the Secured Loan and the write-off of the related debt issuance costs.