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Receivables, net
3 Months Ended
Mar. 31, 2018
Receivables [Abstract]  
RECEIVABLES, NET
RECEIVABLES, NET
Cadence’s current and long-term receivables balances as of March 31, 2018 and December 30, 2017 were as follows:
 
As of
 
March 31,
2018
 
December 30,
2017
 
(In thousands)
Accounts receivable
$
117,065

 
$
119,325

Unbilled accounts receivable
109,423

 
71,101

Long-term receivables
9,380

 
12,239

Total receivables
235,868

 
202,665

Less allowance for doubtful accounts
(666
)
 

Total receivables, net
$
235,202

 
$
202,665


Cadence’s customers are primarily concentrated within the semiconductor and electronics systems industries. As of March 31, 2018, no one customer accounted for 10% or more of Cadence’s total receivables. As of December 30, 2017, one customer accounted for 17% of Cadence’s total receivables.