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Restructuring - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020	Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 0	$ 18,089,000	$ 0	$ 18,089,000
Impairment of right-of-use assets	0		0	$ 5,411,000	$ 5,400,000
Other liabilities
Restructuring Cost and Reserve [Line Items]
Restructuring reserve, current	4,400,000		4,400,000
Non-current other liabilities
Restructuring Cost and Reserve [Line Items]
Restructuring reserve, noncurrent	2,600,000		2,600,000
Resource rationalization, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 0		0		18,089,000
Resource rationalization, 2020 | Workforce reductions
Restructuring Cost and Reserve [Line Items]
Restructuring Charges					11,391,000
Resource rationalization, 2020 | Onerous Lease
Restructuring Cost and Reserve [Line Items]
Restructuring Charges					6,698,000
Resource rationalization, 2020 | Other restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring Charges					$ 1,300,000
Resource rationalizations 2018
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			$ 0			$ 12,490,000
Resource rationalizations 2018 | Workforce reductions
Restructuring Cost and Reserve [Line Items]
Restructuring Charges						9,684,000
Resource rationalizations 2018 | Onerous Lease
Restructuring Cost and Reserve [Line Items]
Restructuring Charges						$ 2,806,000

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- Definition

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

+ References

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-Publisher FASB
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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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Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

+ References

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