Receivables

12 Months Ended

Sep. 28, 2019

Receivables consist of:



	September 28, 2019			September 29, 2018
Accounts receivable	$	255,079		$	295,180
Over-time contract receivables:
Billed receivables	222,075			156,414
Unbilled receivables	468,824			316,489
Total over-time contract receivables	690,899			472,903
Other	16,711			30,787
Less allowance for doubtful accounts	(5,402		)	(4,959		)
Receivables	$	957,287		$	793,911

Under our trade receivables securitization facility (the "Securitization Program"), we securitize certain trade receivables in transactions that are accounted for as secured borrowings. We maintain a subordinated interest in a portion of the pool of trade receivables that are securitized. The retained interest, which is included in receivables in the consolidated balance sheets, is recorded at fair value, which approximates the total amount of the designated pool of accounts receivable. See Note 8, Indebtedness, for additional disclosures related to the Securitization Program.

Over-time contract receivables are primarily associated with prime contractors and subcontractors in connection with U.S. Government contracts, as well as commercial aircraft and satellite manufacturers. Amounts billed for over-time contracts to the U.S. Government were $7,573 at September 28, 2019 and $6,106 at September 29, 2018. Unbilled recoverable costs and accrued profits under over-time contracts to be billed to the U.S. Government were $48,004 at September 28, 2019 and $25,915 at September 29, 2018. Unbilled recoverable costs and accrued profits principally represent revenues recognized on contracts that were not billable on the balance sheet date. These amounts will be billed in accordance with contract terms, generally as certain milestones are reached or upon shipment. Approximately 99% of unbilled amounts are expected to be collected within one year. In situations where billings exceed revenues recognized, the excess is included in contract advances.

There are no material amounts of claims or unapproved change orders included in the consolidated balance sheets. There are no material balances billed but not paid by customers under retainage provisions.

Concentrations of credit risk on receivables are limited to those from significant customers who are believed to be financially sound. Receivables from Boeing were $245,892 at September 28, 2019 and $178,798 at September 29, 2018. We perform periodic credit evaluations of our customers’ financial condition and generally do not require collateral.