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Debt - Summary of Interest Expense on Notes and Credit Facilities (Details) - USD ($)
$ in Thousands
3 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Debt Disclosure [Abstract]    
Interest expense related to contractual interest coupon $ 2,862 $ 2,325
Interest expense related to amortization of debt discount 965 810
Interest expense related to amortization of debt issuance costs 330 382
Total interest expense recognized $ 4,157 $ 3,517