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Revenue from Contracts with Customers
 12 Months Ended
Jun. 30, 2021
Revenue from Contract with Customer [Abstract]  
Revenue from Contracts with Customers Revenue from Contracts with Customers
The following table summarizes disaggregated revenue by market for the years ended June 30, 2021, 2020 and 2019 ($000):
Year Ended June 30, 2021
Photonic SolutionsCompound SemiconductorsTotal
Industrial$50,181 $275,698 $325,879 
Communications1,917,697 134,969 2,052,666 
Aerospace & Defense— 201,845 201,845 
Consumer9,138 277,319 286,457 
Other61,268 177,776 239,044 
Total Revenues$2,038,284 $1,067,607 $3,105,891 
Year Ended June 30, 2020
Photonic
Solutions		Compound
Semiconductors		Unallocated & OtherTotal
Industrial$52,806 $240,475 $— $293,281 
Communications1,437,377 125,527 21,557 1,584,461 
Aerospace & Defense— 175,097 — 175,097 
Consumer4,620 126,227 494 131,341 
Other41,987 153,904 — 195,891 
Total Revenues$1,536,790 $821,230 $22,051 $2,380,071 


Year Ended June 30, 2019
Photonic
Solutions		Compound
Semiconductors		Total
Industrial$58,621 $283,422 $342,043 
Communications526,420 92,812 619,232 
Aerospace & Defense— 152,702 152,702 
Consumer2,300 46,826 49,126 
Other51,548 147,845 199,393 
Total Revenues$638,889 $723,607 $1,362,496 

"Other" revenue included in the tables above include revenue from the life science/medical, semiconductor and automotive end markets.
Contract Liabilities

Payments received from customers are based on invoices or billing schedules as established in contracts with customers. Contract liabilities relate to billings in advance of performance under the contracts. Contract liabilities are recognized as revenue when performance obligations have been performed. During the year ended June 30, 2021, the Company recognized revenue of $4 million related to customer payments that were included in the consolidated balance sheet as of June 30, 2020. As of June 30, 2021 and June 30, 2020, the Company had $40 million and $39 million, respectively, of contract liabilities recorded in the consolidated balance sheet.