REVENUE

12 Months Ended

Dec. 31, 2021

REVENUE

REVENUE

3.     REVENUE

The following tables present our revenues disaggregated by revenue source (in thousands).

Sales and usage-based taxes are excluded from revenues. No sales to an individual customer or in a country other than the United States accounted for 10% or more of the sales for the periods listed on the following table. Revenue, classified by the major geographic areas in which our customers are located, was as follows:

	2021		2020		2019
(in thousands)
United States	$	2,240,226	$	2,006,368	$	1,862,698
Other countries		184,074		154,852		152,779
Total Revenues	$	2,424,300	$	2,161,220	$	2,015,477

Revenue from external customers, classified by significant product and service offerings, was as follows:

(in thousands)	2021		2020		2019
Residential revenue	$	1,103,687	$	977,470	$	861,636
Commercial revenue		844,928		766,716		770,342
Termite completions, bait monitoring, & renewals		465,053		406,782		371,258
Other revenues		10,632		10,252		12,241
Total Revenues	$	2,424,300	$	2,161,220	$	2,015,477

Deferred revenue recognized for the year ended December 31, 2021 and 2020 was $187.3 million and $173.2 million, respectively. Changes in unearned revenue were as follows:

	Year Ended December 31,
	2021		2020
(in thousands)
Beginning balance	$	149,224	$	136,507
Deferral of unearned revenue		206,730		185,943
Recognition of unearned revenue		(187,347)		(173,226)
Ending balance	$	168,607	$	149,224

Revenue allocated to remaining performance obligations represents contracted revenue that has not yet been recognized (“contracted not recognized revenue”), which includes both unearned revenue and revenue that will be billed and recognized in future periods. The Company has no material contracted not recognized revenue as of December 31, 2021 or December 31, 2020.

At December 31, 2021 and December 31, 2020, the Company had long-term unearned revenue of $23.5 million and $18.0 million, respectively. Unearned short-term revenue is recognized over the next 12-month period. The majority of unearned long-term revenue is recognized over a period of five years or less with immaterial amounts recognized through 2032.