Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2019

Revenue from Contract with Customer [Abstract]

Schedule of Deferred Revenues and Contract Balances

The following table presents deferred revenue by revenue source (amounts in thousands):



	Deferred Revenue
	As of March 31, 2019		December 31, 2018
Hosted services – Business	$	61,463	$	52,232
Professional services – Business	4,747		2,783
Total deferred revenue - short term	$	66,210	$	55,015

Hosted services – Business	$	4	$	19
Professional services – Business	173		203
Total deferred revenue - long term	$	177	$	222

The opening and closing balances of the Company's accounts receivable, unbilled receivables, and deferred revenues are as follows (amounts in thousands):



	Accounts Receivable		Unbilled Receivable			Prepaid Commissions		Deferred Revenue (current)		Deferred Revenue (long term)
Opening Balance as of December 31, 2018	$	34,211	$	11,812		$	13,361	$	55,015	$	222
Increase (decrease), net	6,607		(1,345		)	2,825		11,195		(45		)
Ending Balance as of March 31, 2019	$	40,818	$	10,467		$	16,186	$	66,210	$	177

As of March 31, 2019, the Company expects to recognize the long term performance obligations in 2020.

Schedule of Disaggregation of Revenue

The following table presents the Company's revenues disaggregated by revenue source (amounts in thousands):



	Three Months Ended
	March 31,
	2019		2018		(1)
Revenue:
Hosted services – Business	$	51,537	$	47,427
Hosted services – Consumer	5,407		4,680
Professional services	9,458		6,134
Total revenue	$	66,402	$	58,241
⁽¹⁾As noted above, prior period amounts have not been adjusted under the modified retrospective method.

Schedule of Revenue by Geographic Region

The following table presents the Company’s revenues attributable to domestic and foreign operations for the periods presented (amounts in thousands):



	Three Months Ended
	March 31,
	2019		2018
United States	$	38,589	$	34,071
Other Americas ⁽¹⁾	2,769		1,259
Total Americas	41,358		35,330
EMEA ^{(2) (4)}	18,113		16,919
APAC ⁽³⁾	6,931		5,992
Total revenue	$	66,402	$	58,241

⁽¹⁾ Canada, Latin America and South America

⁽²⁾ Europe, the Middle East and Africa (“EMEA”)

⁽³⁾ Asia-Pacific (“APAC”)

⁽⁴⁾ Includes revenues from the United Kingdom of $11.7 million for the three months ended March 31, 2019 and 2018, respectively, and from the Netherlands of $2.5 million and $1.9 million for the three months ended March 31, 2019 and 2018, respectively.