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Receivables, Net
12 Months Ended
Jan. 02, 2021
Receivables [Abstract]  
RECEIVABLES, NET RECEIVABLES, NET
Cadence’s current and long-term receivables balances as of January 2, 2021 and December 28, 2019 were as follows:
 As of
 January 2,
2021
December 28,
2019
 (In thousands)
Accounts receivable$196,990 $179,250 
Unbilled accounts receivable144,364 126,165 
Long-term receivables3,655 3,082 
Total receivables345,009 308,497 
Less allowance for doubtful accounts(2,867)(869)
Total receivables, net$342,142 $307,628 
Cadence’s customers are primarily concentrated within the semiconductor and electronics systems industries. As of January 2, 2021 and December 28, 2019, no customer accounted for 10% or more of Cadence’s total receivables.
Allowance for doubtful accounts
Cadence’s provisions for losses on its accounts receivable during fiscal 2020, 2019 and 2018 were as follows:
Balance at Beginning of Period*Charged to Costs and ExpensesCharged to Other AccountsUncollectible Accounts Written Off, NetBalance at End of Period
Year ended January 2, 2021$2,868 $1,628 $225 $(1,854)$2,867 
Year ended December 28, 20193,936 632 — (3,699)869 
Year ended December 29, 2018$— $5,102 $— $(1,166)$3,936 
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* Beginning balance for fiscal 2020 reflects the cumulative-effect adjustment recorded in connection with the adoption of ASU 2016-13, “Measurement of Credit Losses on Financial Instruments” on the first day of fiscal 2020. For additional discussion of recently adopted accounting standards, see Note 2 in the notes to the consolidated financial statements.