Debt (Summary interest expense related to notes recognized) (Detail 2) - Interest expense - USD ($) $ in Thousands	3 Months Ended
Sep. 30, 2018	Sep. 30, 2017
Debt Instrument [Line Items]
Contractual coupon	$ 670	$ 709
Amortization of debt discount	1,391	1,304
Amortization of debt issuance costs	209	209
Interest expense	$ 2,270	$ 2,222

Represents amount of interest expenses contractual coupon.

No definition available.

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- Definition

Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

+ References

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- Definition

Amount of amortization expense attributable to debt issuance costs.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

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