Accounts Receivable (Tables)

6 Months Ended

Jan. 27, 2018

Receivables [Abstract]

Schedule of Accounts Receivable

Accounts receivable consisted of the following (dollars in thousands):

	January 27, 2018			July 29, 2017			July 30, 2016
Contract billings	$	300,271		$	348,990		$	297,532
Retainage	19,411			21,645			32,101
Total	319,682			370,635			329,633
Less: allowance for doubtful accounts	(998		)	(835		)	(1,603		)
Accounts receivable, net	$	318,684		$	369,800		$	328,030