Debt (Tables)

12 Months Ended

Jun. 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 June 30, 2016:

(in thousands)	Secured Loan			3.75% Notes			3.50% Notes			3.50% Series A Notes			TOTAL
Carrying amount of the equity conversion component	$	—		$	19,670		$	—		$	7,844		$	27,514
Principal amount of the Convertible Notes	$	68,250		$	36,608		$	44,654		$	70,346		$	219,858
Unamortized debt costs		(2,786	)		(26	)		(1,459	)					(4,271	)
Unamortized debt discount		(1,260	)		(182	)		—			(3,733	)		(5,175	)
Net carrying amount	$	64,204		$	36,400		$	43,195		$	66,613		$	210,412

Summary of interest expense on all Convertible Notes

	Year ended June 30,
(in thousands)	2016		2015		2014
Interest expense related to contractual interest coupon	$	9,411	$	7,774	$	7,774
Interest expense related to amortization of debt discount		6,321		7,241		5,105
Interest expense related to amortization of debt issuance costs		1,728		1,503		1,408
	$	17,460	$	16,518	$	14,287