Revenues

3 Months Ended

Mar. 31, 2019

Revenue from Contract with Customer [Abstract]

Revenues are recognized when control of the promised goods or services is transferred to our customers and in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. Taxes collected from customers and remitted to governmental authorities are not included in our revenues. The following tables present our revenues disaggregated by major product category.



	Cable & Connectivity		Networking, Software & Security		Total Revenues

Three Months Ended March 31, 2019	(In thousands)
Enterprise Solutions	$	233,671	$	92,856	$	326,527
Industrial Solutions	158,508		102,140		260,648
Total	$	392,179	$	194,996	$	587,175

Three Months Ended April 1, 2018
Enterprise Solutions	$	234,467	$	114,657	$	349,124
Industrial Solutions	162,730		93,711		256,441
Total	$	397,197	$	208,368	$	605,565

The following tables present our revenues disaggregated by geography, based on the location of the customer purchasing the product.



	Americas		EMEA		APAC		Total Revenues

Three Months Ended March 31, 2019	(In thousands)
Enterprise Solutions	$	211,264	$	67,320	$	47,943	$	326,527
Industrial Solutions	152,574		73,315		34,759		260,648
Total	$	363,838	$	140,635	$	82,702	$	587,175

Three Months Ended April 1, 2018
Enterprise Solutions	$	225,279	$	73,329	$	50,516	$	349,124
Industrial Solutions	149,812		72,592		34,037		256,441
Total	$	375,091	$	145,921	$	84,553	$	605,565

The following tables present our revenues disaggregated by products, including software products, and support and services.



	Products		Support & Services		Total Revenues

Three Months Ended March 31, 2019	(In thousands)
Enterprise Solutions	$	307,859	$	18,668	$	326,527
Industrial Solutions	238,704		21,944		260,648
Total	$	546,563	$	40,612	$	587,175

Three Months Ended April 1, 2018
Enterprise Solutions	$	332,737	$	16,387	$	349,124
Industrial Solutions	232,061		24,380		256,441
Total	$	564,798	$	40,767	$	605,565

We generate revenues primarily by selling products that provide secure and reliable transmission of data, sound, and video for mission critical applications. We also generate revenues from providing support and professional services. We sell our products to distributors, end-users, installers, and directly to original equipment manufacturers. At times, we enter into arrangements that involve the delivery of multiple performance obligations. For these arrangements, revenue is allocated to each performance obligation based on its relative selling price and recognized when or as each performance obligation is satisfied. Most of our performance obligations related to the sale of products are satisfied at a point in time when control of the product is transferred based on the shipping terms of the arrangement. Generally, we determine relative selling price using the prices charged to customers on a standalone basis.

The amount of consideration we receive and revenue we recognize varies due to rebates, returns, and price adjustments. We estimate the expected rebates, returns, and price adjustments based on an analysis of historical experience, anticipated sales demand, and trends in product pricing. We adjust our estimate of revenue at the earlier of when the most likely amount of consideration we expect to receive changes or when the consideration becomes fixed. Adjustments to revenue for performance obligations satisfied in prior periods was not significant during the three months ended March 31, 2019. Accrued rebates and accrued returns as of March 31, 2019 totaled $17.7 million and $11.7 million, respectively. Estimated price adjustments recognized against our gross accounts receivable balance as of March 31, 2019 totaled $25.8 million.

Depending on the terms of an arrangement, we may defer the recognition of a portion of the consideration received because we have to satisfy a future obligation. Consideration allocated to support services under a support and maintenance contract is typically paid in advance and recognized ratably over the term of the service. Consideration allocated to professional services is recognized when or as the services are performed depending on the terms of the arrangement. As of January 1, 2019, total deferred revenue was $113.3 million, and during the three months ended March 31, 2019, $47.8 million of revenue was deferred, `and $53.3 million of revenue was recognized. As of March 31, 2019, total deferred revenue was $107.8 million, and of this amount, $92.5 million will be recognized within the next twelve months, and the remaining $15.3 million is long-term and will be recognized over a period greater than twelve months.

We expense sales commissions as incurred when the duration of the related revenue arrangement is one year or less. We capitalize sales commissions in other current and long-lived assets on our balance sheet when the duration of the related revenue arrangement is longer than one year, and we amortize it over the related revenue arrangement period. Total capitalized sales commissions was $3.4 million as of March 31, 2019. Total sales commissions costs were $5.6 million during the three months ended March 31, 2019. Sales commissions are recorded within selling, general and administrative expenses.