Accounts Receivable and Revenue Recognition (Tables)

12 Months Ended

Sep. 30, 2018

Accounts Receivable - Net and Revenue Recognition

Net accounts receivable and billings in excess of costs on uncompleted contracts

Net accounts receivable and billings in excess of costs on uncompleted contracts consisted of the following at September 30, 2018 and October 1, 2017:

	September 30, 2018			October 1, 2017
	(in thousands)
Billed	$	464,062		$	376,287
Unbilled	397,200			404,899
Contract retentions	13,421			39,840
Total accounts receivable – gross	874,683			821,026
Allowance for doubtful accounts	(37,580		)	(32,259		)
Total accounts receivable – net	$	837,103		$	788,767
Billings in excess of costs on uncompleted contracts	$	143,270		$	117,499