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Revenue
 9 Months Ended
Jul. 02, 2021
Revenue [Abstract]  
Revenue . REVENUE
Disaggregation of Revenue
We disaggregate revenue from contracts with customers by markets and geography, as we believe it best depicts how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors.
The following tables present our revenue disaggregated by markets and geography (in thousands):
Three Months EndedNine Months Ended
July 2, 2021July 3, 2020July 2, 2021July 3, 2020
Revenue by Market:
Telecommunications
$47,995 $56,800 $141,799 $154,049 
Industrial & Defense
71,370 48,035 205,078 146,586 
Data Center
33,257 32,432 104,832 82,153 
Total $152,622 $137,267 $451,709 $382,788 

Three Months EndedNine Months Ended
July 2, 2021July 3, 2020July 2, 2021July 3, 2020
Revenue by Geographic Region:
United States
$70,329 $53,633 $206,566 $163,964 
China
44,521 55,886 124,097 133,659 
Asia Pacific, excluding China (1)
22,023 19,688 69,310 58,552 
Other Countries (2)
15,749 8,060 51,736 26,613 
Total$152,622 $137,267 $451,709 $382,788 
(1)Asia Pacific represents Taiwan, Japan, Singapore, India, Thailand, South Korea, Australia, Malaysia, the Philippines and Vietnam.
(2)No country or region represented greater than 10% of our total revenue as of the dates presented, other than the United States, China and Asia Pacific region as presented above.
Contract Balances
We record contract assets or contract liabilities depending on the timing of revenue recognition, billings and cash collections on a contract-by-contract basis. Our contract liabilities primarily relate to deferred revenue, including advanced consideration received from customers for contracts prior to the transfer of control to the customer, and therefore revenue is subsequently recognized upon delivery of products and services.
The following table presents the changes in contract liabilities during the nine months ended July 2, 2021 (in thousands, except percentage):
July 2, 2021October 2, 2020$ Change% Change
 Contract liabilities$6,349 $9,861 $(3,512)(36)%
As of July 2, 2021 and October 2, 2020, $4.6 million and $3.5 million, respectively, of our contract liabilities, were recorded as other long-term liabilities on our balance sheet with the remainder recorded as accrued liabilities. During the three and nine months ended July 2, 2021, we recognized net sales of $0.1 million and $6.1 million, respectively, that were included in the contract liabilities balance as of the beginning of the period. The decrease in contract liabilities during the nine months ended July 2, 2021, as shown in the table above, was primarily related to recognition of license revenue, partially offset by the deferral of revenue for invoiced products and services prior to when certain of our customers obtained control of the product and or services.