CONSOLIDATED AND COMBINED FINANCIAL STATEMENT DETAILS (Tables)

12 Months Ended

Dec. 31, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Other Current Assets

	December 31,
	2019		2018
	(In thousands)
Other current assets:
Capitalized costs to obtain a contract with a customer	$	35,103	$	35,482
Proceeds receivable from the sale of a business	—		24,250
Prepaid expenses	21,790		16,218
Other	10,866		8,983
Other current assets	$	67,759	$	84,933

Schedule of Property and Equipment, Net

Depreciation is computed using the straight-line method over the estimated useful lives of the assets, or, in the case of leasehold improvements, the lease term, if shorter.

Asset Category	Estimated Useful Lives
Capitalized software and computer equipment	2 to 3 Years
Furniture and other equipment	5 to 7 Years
Leasehold improvements	5 to 25 Years

	December 31,
	2019			2018
	(In thousands)
Capitalized software, leasehold improvements and equipment, net:
Capitalized software and computer equipment	$	105,956		$	59,521
Leasehold improvements	32,559			16,340
Furniture and other equipment	13,435			5,860
Projects in progress	19,638			25,611
Capitalized software, leasehold improvements and equipment	171,588			107,332
Accumulated depreciation and amortization	(68,227		)	(36,473		)
Capitalized software, leasehold improvements and equipment, net	$	103,361		$	70,859

Schedule of Accrued Expenses and Other Current Liabilities

	December 31,
	2019		2018
	(In thousands)
Accrued expenses and other current liabilities:
Accrued advertising expense	$	29,682	$	20,216
Accrued employee compensation and benefits	28,630		24,977
Other	58,685		60,794
Accrued expenses and other current liabilities	$	116,997	$	105,987

Schedule of Other Income (Expense), Net

	Years Ended December 31,
	2019		2018		2017
	(In thousands)
Other income, net	$	6,510	$	17,859	$	1,974

Schedule of Cash and Cash Equivalents

The following table provides a reconciliation of cash and cash equivalents and restricted cash reported within the consolidated balance sheet to the total amounts shown in the consolidated and combined statement of cash flows:

	December 31, 2019		December 31, 2018		December 31, 2017		December 31, 2016
	(In thousands)
Cash and cash equivalents	$	390,565	$	336,984	$	221,521	$	36,377
Restricted cash included in other current assets	504		1,417		—		—
Restricted cash included in other assets	409		420		—		10,548
Total cash and cash equivalents and restricted cash as shown on the consolidated and combined statement of cash flows	$	391,478	$	338,821	$	221,521	$	46,925

Schedule of Restricted Cash

The following table provides a reconciliation of cash and cash equivalents and restricted cash reported within the consolidated balance sheet to the total amounts shown in the consolidated and combined statement of cash flows:

	December 31, 2019		December 31, 2018		December 31, 2017		December 31, 2016
	(In thousands)
Cash and cash equivalents	$	390,565	$	336,984	$	221,521	$	36,377
Restricted cash included in other current assets	504		1,417		—		—
Restricted cash included in other assets	409		420		—		10,548
Total cash and cash equivalents and restricted cash as shown on the consolidated and combined statement of cash flows	$	391,478	$	338,821	$	221,521	$	46,925