Business Realignment Activities - Activity Related to the Obligations Pursuant to Business Realignment (Details) $ in Thousands	9 Months Ended
Sep. 30, 2020 USD ($)
Balance, January 1, 2020	$ 25,278
Costs paid or otherwise settled	(23,372)
Balance, September 30, 2020	1,906
Accrued Compensation And Benefits
Balance, January 1, 2020	20,210
Costs paid or otherwise settled	(18,304)
Balance, September 30, 2020	1,906
Other Liabilities
Balance, January 1, 2020	5,068
Costs paid or otherwise settled	$ (5,068)

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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747

Name:	us-gaap_RestructuringReserve
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant