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Accounts Receivable
3 Months Ended
Oct. 28, 2017
Receivables [Abstract]  
Accounts Receivable
Accounts Receivable
 
Accounts receivable consisted of the following (dollars in thousands):
 
October 28, 2017
 
July 29, 2017
Contract billings
$
326,666

 
$
348,990

Retainage
22,056

 
21,645

Total
348,722

 
370,635

Less: allowance for doubtful accounts
(995
)
 
(835
)
Accounts receivable, net
$
347,727

 
$
369,800


 
The Company grants credit under normal payment terms, generally without collateral, to its customers. The Company expects to collect the outstanding balance of accounts receivable, net (including retainage) within the next twelve months. The Company maintains an allowance for doubtful accounts for estimated losses on uncollected balances. During the three months ended October 28, 2017 and October 29, 2016, write-offs to the allowance for doubtful accounts, net of recoveries, were not material. There were no material accounts receivable amounts representing claims or other similar items subject to uncertainty as of October 28, 2017 or July 29, 2017.