Debt (Tables)

3 Months Ended

Sep. 30, 2016

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 Secured Loan (collectively, “Notes”) as of September 30, 2016 (in thousands):

	Secured Loan			3.50% Convertible Notes			3.50% Series A Convertible Notes			Total
Carrying amount of the equity conversion component	$	—		$	—		$	7,844		$	7,844
Principal amount of the Notes	$	68,250		$	44,654		$	70,346		$	183,250
Unamortized debt costs	(2,631		)	(1,237		)	—			(3,868		)
Unamortized debt discount	(1,190		)	—			(3,168		)	(4,358		)
Net carrying amount	$	64,429		$	43,417		$	67,178		$	175,024

Summary of interest expense on all Convertible Notes

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

	Three months ended September 30,
	2016		2015
Interest expense related to contractual interest coupon	$	2,531	$	1,945
Interest expense related to amortization of debt discount	816		1,920
Interest expense related to amortization of debt issuance costs	403		403
	$	3,750	$	4,268