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Financial Statement Components (Tables)
12 Months Ended
Dec. 31, 2018
Statement Of Financial Position [Abstract]  
Components of Cash and Cash Equivalents

Cash and cash equivalents consisted of the following (in thousands):

 

 

December 31,

 

 

December 31,

 

 

2018

 

 

2017

 

Cash

$

80,457

 

 

$

70,893

 

Money market funds

 

485,872

 

 

 

110,299

 

Total cash and cash equivalents

$

566,329

 

 

$

181,192

 

Components of Accounts Receivable, Net

Accounts receivable, net consisted of the following (in thousands):

 

 

December 31,

 

 

December 31,

 

 

2018

 

 

2017

 

 

 

 

 

 

*As adjusted

 

Accounts receivable

$

82,740

 

 

$

42,243

 

Unbilled accounts receivable

 

14,141

 

 

 

5,159

 

Allowance for doubtful accounts

 

(2,506

)

 

 

(712

)

Accounts receivable, net

$

94,375

 

 

$

46,690

 

*

See Note 2 for a summary of adjustments.

Components of Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consisted of the following (in thousands):

 

 

December 31,

 

 

December 31,

 

 

2018

 

 

2017

 

Prepaid expenses

$

14,805

 

 

$

13,690

 

Inventory

 

199

 

 

 

198

 

Other current assets

 

8,768

 

 

 

7,624

 

Total prepaid expenses and other current assets

$

23,772

 

 

$

21,512

 

Components of Property and Equipment, Net

Property and equipment, net consisted of the following (in thousands):

 

 

December 31,

 

 

December 31,

 

 

2018

 

 

2017

 

Computer hardware and software

$

103,766

 

 

$

74,555

 

Internal-use software development costs

 

29,886

 

 

 

18,217

 

Furniture and fixtures

 

5,896

 

 

 

6,293

 

Leasehold improvements

 

6,863

 

 

 

4,311

 

Property and equipment, gross

 

146,411

 

 

 

103,376

 

Less: accumulated depreciation and amortization

 

(76,206

)

 

 

(60,078

)

Property and equipment, net

$

70,205

 

 

$

43,298

 

Components of Accrued Liabilities

Accrued liabilities consisted of the following (in thousands):

 

 

December 31,

 

 

December 31,

 

 

2018

 

 

2017

 

Accrued compensation and benefits

$

20,932

 

 

$

18,578

 

Accrued sales, use, and telecom related taxes

 

19,609

 

 

 

11,828

 

Accrued marketing

 

12,291

 

 

 

7,020

 

Other accrued expenses

 

47,855

 

 

 

17,551

 

Total accrued liabilities

$

100,687

 

 

$

54,977

 

Summary of Carrying Value of Goodwill

The carrying value of goodwill is as follows (in thousands):

 

 

 

 

December 31,

 

 

 

 

2018

 

Balance at December 31, 2017 and 2016

 

 

$

9,393

 

Dimelo acquisition

 

 

 

21,995

 

Foreign currency translation adjustments

 

 

 

(150

)

Balance at December 31, 2018

 

 

$

31,238

 

Summary of Carrying Values of Intangible Assets

The carrying values of intangible assets are as follows (in thousands):

 

 

 

 

 

 

December 31, 2018

 

 

 

 

 

 

December 31, 2017

 

 

Estimated

Lives

 

Cost

 

Accumulated

Amortization

 

 

Acquired

Intangibles,

Net

 

 

Cost

 

 

Accumulated

Amortization

 

 

Acquired

Intangibles,

Net

 

Customer relationships

2-5 years

 

$

20,121

 

$

4,460

 

 

$

15,661

 

 

$

840

 

 

$

840

 

 

$

 

Developed technology

4-5 years

 

 

6,098

 

 

2,279

 

 

 

3,819

 

 

 

3,010

 

 

 

1,548

 

 

 

1,462

 

Total acquired intangible assets

 

 

$

26,219

 

$

6,739

 

 

$

19,480

 

 

$

3,850

 

 

$

2,388

 

 

$

1,462

 

 

Summary of Estimated Amortization Expense for Acquired Intangible Assets

Estimated amortization expense for acquired intangible assets for the following five fiscal years and thereafter is as follows (in thousands):

 

2019

 

 

 

$

4,895

 

2020

 

 

 

 

4,551

 

2021

 

 

 

 

4,293

 

2022

 

 

 

 

4,164

 

2023

 

 

 

 

1,577

 

Total estimated amortization expense

 

 

 

$

19,480