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Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2021

Accounting Policies [Abstract]

Schedule of property and equipment

We record property and equipment at cost and depreciate them using the straight-line method over their estimated useful lives as follows:

			Useful Life (in years)
Equipment, servers and computers			3 - 5
Furniture and fixtures			5 - 7
Software			3 - 5
Leasehold improvements			Lesser of lease term or useful life

Property and equipment, net including software, consisted of the following:

			December 31,
			2020						2019
			(in thousands)
Servers, equipment and computers			$	29,025					$	20,167
Furniture and fixtures			3,474						2,700
Software			1,022						965
Leasehold improvements			8,740						6,459
			$	42,261					$	30,291
Less: Accumulated depreciation and amortization			(22,671)						(16,884)
Property and equipment, net			$	19,590					$	13,407

Depreciation and amortization expense on property and equipment was as follows:

			Year Ended December 31,
			2020						2019						2018
			(in thousands)
Cost of revenue			$	4,252					$	3,433					$	2,716
Operating expense			2,329						2,350						2,436
Total depreciation and amortization			$	6,581					$	5,783					$	5,152

Performance obligation from which revenue is generated

The following summarizes our performance obligations from which we generate revenue:

Performance obligation						When performance obligation is typically satisfied
SaaS solutions						Over the subscription term, once the service is made available to the MSP partner (over time)
Subscription-based term and perpetual licenses						Upon the delivery of the license key or password that provides immediate availability of the product (point in time)
Technical support and unspecified software upgrades						Ratably over the contract period (over time)

Disaggregation of revenue

Our revenue consists of the following:

			Year Ended December 31,
			2020						2019						2018
			(in thousands)
Subscription revenue			$	292,027					$	251,695					$	216,750
Other revenue			10,844						11,823						11,544
Total subscription and other revenue			$	302,871					$	263,518					$	228,294

During the periods ended December 31, 2020, 2019 and 2018, and March 31, 2021 and 2020 (unaudited), respectively, we recognized the following revenue from subscription and other services at a point in time and over time:

			Year Ended December 31,
			2020						2019						2018
			(in thousands)
Revenue recognized at a point in time			$	57,943					$	49,510					$	—
Revenue recognized over time			244,928						214,008						$	228,294
Total revenue recognized			$	302,871					$	263,518					$	228,294

Our revenue consists of the following:

			Three Months Ended June 30,												Six Months Ended June 30,
			2021						2020						2021						2020
			(in thousands)
Subscription revenue			$	82,821					$	70,820					$	163,492					$	140,975
Other revenue			2,519						2,604						5,038						5,717
Total subscription and other revenue			$	85,340					$	73,424					$	168,530					$	146,692

During the three months and six months periods ended June 30, 2021 and 2020, respectively, we recognized the following revenue from subscription and other services at a point in time and over time:

			Three Months Ended June 30,												Six Months Ended June 30,
			2021						2020						2021						2020
			(in thousands)
Revenue recognized at a point in time			$	15,082					$	13,917					$	30,192					$	28,611
Revenue recognized over time			$	70,258					$	59,507					$	138,338					$	118,081
Total revenue recognized			$	85,340					$	73,424					$	168,530					$	146,692

Details of total deferred revenue balance

Details of our total deferred revenue balance was as follows:

			Total Deferred Revenue
			(in thousands)
Balance at December 31, 2018			$	8,491
Adoption of ASC 606			(1,225)
Deferred revenue recognized			(13,345)
Additional amounts deferred			14,217
Deferred revenue acquired in business combinations			34
Balance at December 31, 2019			8,172
Deferred revenue recognized			(13,619)
Additional amounts deferred			15,117
Balance at December 31, 2020			9,670
Deferred revenue recognized			(4,090)
Additional amounts deferred			4,245
Balance at March 31, 2021 (unaudited)			$	9,825

Details of our total deferred revenue balance was as follows:

			Total Deferred Revenue
			(in thousands)
Balance at December 31, 2020			$	9,670
Deferred revenue recognized			(8,465)
Additional amounts deferred			8,377
Balance at June 30, 2021			$	9,582

Remaining performance obligations for revenue recognition

We expect to recognize revenue related to these remaining performance obligations as of December 31, 2020 and March 31, 2021 as follows:

			Revenue Recognition Expected by Period
			Total						Less than 1 year						1-3 years						More than 3 years
			(in thousands)
Expected recognition of deferred revenue			$	9,670					$	9,502					$	168					$	—

			Revenue Recognition Expected by Period
			Total						Less than 1 year						1-3 years						More than 3 years
			(unaudited)
Expected recognition of deferred revenue			$	9,825					$	9,688					$	137					$	—

We expect to recognize revenue related to remaining performance obligations as follows:

			Revenue Recognition Expected by Period
			Total						Less than 1 year						1-3 years						More than 3 years
			(in thousands)
Expected recognition of deferred revenue			$	9,582					$	9,462					$	120					$	—

Schedule of advertising expense

			Year Ended December 31,
			2020						2019						2018
			(in thousands)
Advertising expense			$	13,903					$	12,774					$	11,576

Changes in accumulated other comprehensive income (loss) by component

Changes in accumulated other comprehensive income (loss) by component are summarized below:

									Foreign Currency Translation Adjustments						Accumulated Other Comprehensive Income (Loss)
									(in thousands)
Balance at December 31, 2020									$	48,991					$	48,991
Other comprehensive loss before reclassification									(13,912)						(13,912)
Net current period other comprehensive loss									(13,912)						(13,912)
Balance at June 30, 2021									$	35,079					$	35,079

Intangible asset amortization expense

Intangible asset amortization expense was as follows:

			Year Ended December 31,
			2020						2019						2018
			(in thousands)
Intangible asset amortization expense			$	48,105					$	47,289					$	50,168

Amortization of acquired technologies included in cost of revenue relate to our subscription products as follows:

			Three Months Ended June 30,												Six Months Ended June 30,
			2021						2020						2021						2020
			(in thousands)
Amortization of acquired technologies			$	1,037					$	6,132					$	3,741					$	11,876

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