Revenue

Revenue Recognition

Revenues are recognized over time as control of the promised services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those services.

The following table presents our revenues disaggregated by revenue source (in thousands):



	Three Months Ended March 31,
	2019			2018
Truckload Transportation Services	$	462,891		$	431,556
Werner Logistics	117,370			117,420
Inter-segment eliminations	(205		)	(458		)
Transportation services	580,056			548,518
Other revenues	16,061			14,166
Total revenues	$	596,117		$	562,684

The following table presents our revenues disaggregated by geographic areas in which we conduct business (in thousands). Operating revenues for foreign countries include revenues for (i) shipments with an origin or destination in that country and (ii) other services provided in that country. If both the origin and destination are in a foreign country, the revenues are attributed to the country of origin.



	Three Months Ended March 31,
	2019		2018
United States	$	526,592	$	488,021
Mexico	52,814		56,410
Other	16,711		18,253
Total revenues	$	596,117	$	562,684

Contract Balances and Accounts Receivable

A receivable is an unconditional right to consideration and is recognized when shipments have been completed and the related performance obligation has been fully satisfied. At March 31, 2019 and December 31, 2018, the accounts receivable, net, balance was $313.5 million and $337.9 million, respectively. Contract assets represent a conditional right to consideration in exchange for goods or services and are transferred to receivables when the rights become unconditional. At March 31, 2019 and December 31, 2018, the balance of contract assets was $10.0 million and $7.4 million, respectively. The Company has recognized contract assets within the other current assets financial statement caption on the balance sheet. These contract assets are considered current assets as they will be settled in less than 12 months.

Contract liabilities represent advance consideration received from customers and are recognized as revenues over time as the related performance obligation is satisfied. At March 31, 2019 and December 31, 2018, the balance of contract liabilities was $2.6 million and $1.7 million, respectively. The amount of revenues recognized in the three months ended March 31, 2019 that was included in the December 31, 2018 contract liability balance was $1.7 million. The Company has recognized contract liabilities within the accounts payable and other current liabilities financial statement captions on the balance sheet. These contract liabilities are considered current liabilities as they will be settled in less than 12 months.

Performance Obligations

We have elected to apply the practical expedient in ASC Topic 606 to not disclose the value of remaining performance obligations for contracts with an original expected length of one year or less. Remaining performance obligations represent the transaction price allocated to future reporting periods for freight shipments started but not completed at the reporting date that we expect to recognize as revenue in the period subsequent to the reporting date; transit times generally average approximately 3 days.

During the three months ended March 31, 2019 and March 31 2018, revenues recognized from performance obligations related to prior periods (for example, due to changes in transaction price) were not material.