DEBT (Tables)

9 Months Ended

Mar. 31, 2019

Outstanding debt consists of the following (in thousands):



	March 31,			June 30,
	2019			2018
Notes payable at fair value	$	—		$	15,899

2024 convertible senior notes	$	126,060		$	126,060
Silicon Valley Bank term loan (1)	53,500			16,200
Long-term debt, gross	179,560			142,260
Less: Unamortized debt discount and fees	(45,315		)	(46,384		)
Long-term debt, net	134,245			95,876
Less: Current portion	—			(2,500		)
Long-term debt, non-current portion	$	134,245		$	93,376

(1) Outstanding debt owed to Silicon Valley Bank includes a final payment fee of $3.5 million and $1.2 million as of March 31, 2019 and June 30, 2018, respectively.

Schedule of interest expense

The following table shows the details of our interest expense for all of our debt arrangements outstanding during the periods presented, including contractual interest, and amortization of debt discount, debt issuance costs and loan transaction fees that were charged to interest expense (in thousands):



	Three Months Ended				Nine Months Ended
	March 31,				March 31,
	2019		2018		2019		2018
Silicon Valley Bank Term Loan
Simple interest	431		100		$	1,115	$	280
Amortization of prepaid fees for line of credit	—		14		29		99
Amortization of debt discount	257		80		688		242
Total interest expense on Silicon Valley Bank term loan	688		194		1,832		621
Convertible Senior Notes (1)
Contractual interest	835		835		2,505		2,723
Amortization of debt discount	1,257		1,141		3,682		4,432
Amortization of debt issuance costs	76		69		223		257
Total interest expense on convertible senior notes	2,168		2,045		6,410		7,412
Other Debt
Simple interest	7		122		19		374
Total interest expense on other debt	7		122		19		374
Total interest expense	$	2,863	$	2,361	$	8,261	$	8,407

(1) Includes the 2024 Notes and 2020 Notes (retired)