Restructuring Charges, Excluding Stock-based Compensation

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Amount of loss from impairment of right-of-use asset from operating lease.

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Amount of other expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses associated with a discontinued operation or an asset retirement obligation.

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- Definition

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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Amount of decrease in the reserve for full or partial settlement through consideration other than cash.

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Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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Restructuring charges - Restructuring Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2017	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring charges			$ 26,502	$ 1,425
Operating Lease, Impairment Loss	$ 12,460		12,460	0
Cost of Revenue [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			1,270	54
Research and Development [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			8,383	556
Selling and Marketing Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			11,189	314
General and Administrative [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			5,660	$ 501
First quarter 2017 restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 23,100
Restructuring charges			(67)
Restructuring Reserve	1,761		1,761		$ 4,470
Other Restructuring Costs			(67)
Cash paid			(2,642)
First quarter 2017 restructuring [Member] \| Non-cancelable Leases, Accelerated Depreciation and Other Charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges		12,800
First quarter 2017 restructuring [Member] \| Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0		0		0
Severance Costs		$ 10,300	0
Cash paid			0
First quarter 2017 restructuring [Member] \| Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	1,761		1,761		4,470
Cash paid			(2,642)
Second quarter 2020 restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			26,600
Restructuring charges			14,204
Restructuring Reserve	754		754		0
Other Restructuring Costs			6,375
Cash paid			(8,106)
Restructuring Reserve, Settled without Cash			(5,344)
Second quarter 2020 restructuring [Member] \| Headquarters campus [Member]
Restructuring Cost and Reserve [Line Items]
Operating Lease, Impairment Loss			12,300
Second quarter 2020 restructuring [Member] \| Non-cancelable Leases, Accelerated Depreciation and Other Charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			6,300
Second quarter 2020 restructuring [Member] \| Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	707		707		0
Severance Costs			7,829
Cash paid			(7,122)
Restructuring Reserve, Settled without Cash			0
Second quarter 2020 restructuring [Member] \| Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 47		47		$ 0
Cash paid			(984)
Restructuring Reserve, Settled without Cash			$ (5,344)