Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2018

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 September 30, 2018		December 31, 2017
Hosted services – Business	$	45,225	$	27,011
Professional services – Business	10,892		8,552
Total deferred revenue - short term	$	56,117	$	35,563

Hosted services – Business	$	1,653	$	—
Professional services – Business	414		—
Total deferred revenue - long term	$	2,067	$	—

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		Deferred Revenue (current)		Deferred Revenue (long term)
Opening Balance as of December 31, 2017	$	30,342	$	7,584	$	35,563	$	—
Increase (decrease), net	10,300		3,501		20,554		2,067
Ending Balance as of September 30, 2018	$	40,642	$	11,085	$	56,117	$	2,067

As of September 30, 2018, the Company expects to recognize the long term performance obligations in 2019.

Schedule of Disaggregation of Revenue

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



	Three Months Ended					Nine Months Ended
	September 30,					September 30,
	2018		2017		⁽¹⁾	2018		2017		⁽¹⁾
Revenue:
Hosted services – Business	$	50,046	$	46,378		$	145,805	$	131,798
Hosted services – Consumer	4,876		4,355			14,508		12,985
Professional services	9,291		5,760			23,801		16,703
Total revenue	$	64,213	$	56,493		$	184,114	$	161,486
⁽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				Nine Months Ended
	September 30,				September 30,
	2018		2017		2018		2017
United States	$	37,033	$	35,519	$	106,676	$	101,282
Other Americas ⁽¹⁾	2,402		1,744		6,208		5,684
Total Americas	39,435		37,263		112,884		106,966
EMEA ^{(2) (4)}	18,536		14,175		52,974		41,640
APAC ⁽³⁾	6,242		5,055		18,256		12,880
Total revenue	$	64,213	$	56,493	$	184,114	$	161,486

⁽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 $11.1 million and $10.2 million for the three months ended September 30, 2018 and 2017, respectively, and $34.7 million and $28.4 million nine months ended September 30, 2018 and 2017, respectively.