The FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, in May 2014 regarding the accounting for and disclosure of revenue. Specifically, the update outlined a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers, which is common to both U.S. GAAP and International Financial Reporting Standards.

Our primary source of revenue is from contracts with and purchase orders from customers. Revenue is recognized from product sales when goods are shipped, title and risk of loss and control have been transferred to the customer, and collection is reasonably assured. We estimate the transaction price at the inception of a contract or upon fulfilling a purchase order, including any variable consideration, and will update the estimate for changes in circumstances. We utilize the most likely amount method consistently to estimate the effect of uncertainty on the amount of variable consideration to which we would be entitled. The most likely amount method considers the single most likely amount from a range of possible consideration amounts. This method is utilized for all of our variable consideration.

We record estimates for cash discounts, product returns, promotional rebates, core (i.e. remanufactured parts) return deposits and other discounts in the period the related product revenue is recognized (“customer rebates and returns”). The provision for customer rebates and returns is recorded as a reduction of gross sales. Beginning with our Form 10-Q for the period ended June 29, 2019, our obligation associated with customer rebates and returns is classified as a current liability on our consolidated balance sheets (“accrued customer rebates and returns”). We have revised prior period balances to conform with this presentation. Please refer to Note 1. Actual customer rebates and returns have not differed materially from estimated amounts for each period presented. Amounts billed to customers for shipping and handling are included in net sales. Costs associated with shipping and handling are included in cost of goods sold. We have concluded that our estimates of variable consideration are not constrained according to the definition of the new standard.

All of our revenue was recognized under the point of time approach in accordance with the revenue standard during the thirty-nine weeks ended September 28, 2019 and September 29, 2018, respectively. Also, we do not have significant financing arrangements with our customers, as our credit terms are all less than one year. Lastly, we do not receive noncash consideration (such as materials or equipment) from our customers to facilitate the fulfillment of our contracts.

We apply the FASB’s guidance on revenue recognition, which requires us to recognize the amount of revenue and consideration which we expect to receive in exchange for goods or services transferred to our customers. To do this, we apply the five-step model prescribed by the FASB, which requires us to: (i) identify the contract with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when, or as, we satisfy a performance obligation.

We recognize a receivable or contract asset when we perform a service or transfer a good in advance of receiving consideration.

- A receivable is recorded when our right to consideration is unconditional and only the passage of time is required before payment of that consideration is due.

- A contract asset is recorded when our right to consideration in exchange for goods or services that we have transferred to a customer is conditional on something other than the passage of time. We did not have any contract assets recorded as of September 28, 2019 or December 29, 2018.

We recognize a contract liability when we receive consideration, or if we have the unconditional right to receive consideration, in advance of satisfying the performance obligation. A contract liability is our obligation to transfer goods or services to a customer for which we have received consideration, or an amount of consideration is due from the customer. We did not have any contract liabilities recorded as of September 28, 2019 or December 29, 2018.

The following tables present our disaggregated net sales by Type of Major Good / Product Line, and Geography.

	Thirteen Weeks Ended				Thirty-Nine Weeks Ended
(in thousands)	September 28, 2019		September 29, 2018		September 28, 2019		September 29, 2018
Powertrain	$	104,756	$	100,994	$	299,730	$	295,363
Chassis		70,787		69,214		228,446		206,483
Automotive body		65,468		67,000		189,174		179,539
Hardware		12,785		10,746		34,412		31,978
Net sales	$	253,796	$	247,954	$	751,762	$	713,363

	Thirteen Weeks Ended				Thirty-Nine Weeks Ended
(in thousands)	September 28, 2019		September 29, 2018		September 28, 2019		September 29, 2018
Net sales to U.S. customers	$	238,466	$	229,761	$	701,778	$	663,212
Net sales to non-U.S. customers	$	15,330		18,193		49,984		50,151
Net sales	$	253,796	$	247,954	$	751,762	$	713,363