Revenue (Tables)

12 Months Ended

Jun. 30, 2020

Revenue From Contract With Customer [Abstract]

Summary of Contract with Customer, Asset and Liability

Changes in the contract assets and contract liabilities are as follows:

	June 30, 2020		June 30, 2019
(Dollars in thousands)	Amount		Amount
Assets:
Unbilled accounts receivable – current (1)	$	11,739	$	5,260
Interest receivable – current (2)		493		361
Long-term accounts receivable (3)		3,810		4,116
Interest receivable – non-current (3)		1,342		1,255
Liabilities:
Customer advances		22,571		20,395
Deferred revenue – current		83,207		78,332
Deferred revenue – non-current		24,125		26,639

(1) Included in accounts receivable on consolidated balance sheets

(2) Included in prepaid expenses and other current assets on consolidated balance sheets

(3) Included in other assets on consolidated balance sheets

Schedule of Remaining Performance Obligations related to Warranty

The following table represents the Company's remaining performance obligations related to long-term warranty and service as of June 30, 2020 and the estimated revenue expected to be recognized (the time bands reflect management’s best estimate of when the Company will transfer control to the customer and may change based on timing of shipment, readiness of customers’ facilities for installation, installation requirements, and availability of products):

	Fiscal years of revenue recognition
(Dollars in thousands)	2021		2022		2023		Thereafter
Long-term warranty and service	$	35,223	$	23,957	$	9,833	$	9,470