Net sales include product revenue and shipping and handling charges, net of estimated sales returns and any related sales incentives. Revenue is measured as the amount of consideration the Company expects to receive in exchange for transferring products. All revenue is recognized when the Company satisfies its performance obligations under the contract, and invoicing occurs at approximately the same point in time. The Company recognizes revenue once the customer obtains control of the products. The Company’s product sales have standard payment terms that do not exceed one year. The Company considers shipping and handling as activities to fulfill its performance obligation. Substantially all of the Company’s contracts have a single performance obligation, to deliver products, and are short-term in nature. The Company estimates product returns based on historical return rates. Total accrued sales returns were $5,374 and $5,315 as of November 28, 2020 and August 29, 2020, respectively, and are reported as Accrued expenses and other current liabilities in the Condensed Consolidated Balance Sheets. Sales taxes and value-added taxes in foreign jurisdictions that are collected from customers and remitted to governmental authorities are accounted for on a net basis and therefore are excluded from net sales.

The Company offers customers sales incentives, which primarily consist of volume rebates, and upfront sign-on payments. These volume rebates and payments are not in exchange for a distinct good or service and result in a reduction of net sales from the goods transferred to the customer at the later of when the related revenue is recognized or when the Company promises to pay the consideration. The Company estimates its volume rebate accruals and records its sign-on payments based on various factors, including contract terms, historical experience, and performance levels. Total accrued sales incentives, primarily related to volume rebates, were $20,570 and $19,679 as of November 28, 2020 and August 29, 2020, respectively, and are included in Accrued expenses and other current liabilities in the Condensed Consolidated Balance Sheets. Sign-on payments, not yet recognized as a reduction of revenue, are recorded in Prepaid expenses and other current assets in the Condensed Consolidated Balance Sheets and were $3,516 and $3,762 as of November 28, 2020 and August 29, 2020, respectively.

The Company records a contract asset when it has a right to payment from a customer that is conditioned on events other than the passage of time. The Company records a contract liability when customers prepay but the Company has not yet satisfied its performance obligation. The Company did not have material unsatisfied performance obligations, contract assets or liabilities as of November 28, 2020 and August 29, 2020.

The Company operates in one operating and reportable segment as a distributor of metalworking and maintenance, repair and operations (“MRO”) products and services. The Company serves a large number of customers in diverse industries, which are subject to different economic and industry factors. The Company's presentation of net sales by customer end-market most reasonably depicts how the nature, amount, timing, and uncertainty of Company revenue and cash flows are affected by economic and industry factors. The Company does not disclose net sales information by product category as it is impracticable to do so as a result of its numerous product offerings and the way its business is managed.

The following tables presents the Company's percentage of net sales by customer end-market for the thirteen-week periods ended November 28, 2020 and November 30, 2019:



	Thirteen Weeks Ended
	November 28, 2020		November 30, 2019
Manufacturing Heavy	45	%	47	%
Manufacturing Light	20	%	23	%
Government	11	%	7	%
Retail/Wholesale	7	%	6	%
Commercial Services	4	%	5	%
Other ⁽¹⁾	13	%	12	%
Total net sales	100	%	100	%

(1)The other category primarily includes individual customer and small business net sales not assigned to a specific industry classification.

The Company’s net sales originating from the following geographic areas were as follows for the thirteen-week periods ended November 28, 2020 and November 30, 2019:


	Thirteen Weeks Ended
	November 28, 2020				November 30, 2019
United States	$	726,893	94	%	$	788,364	96	%
Mexico		20,365	3	%		10,045	1	%
UK		12,991	2	%		14,082	2	%
Canada		11,655	1	%		11,110	1	%
Total net sales	$	771,904	100	%	$	823,601	100	%