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Restructuring and Reorganization Charges (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) Employees	Dec. 31, 2020 USD ($) Employees	Dec. 31, 2019 USD ($) Employees	Dec. 31, 2018 USD ($)
Restructuring Cost And Reserve [Line Items]
Reduced workforce | Employees	100	80	70
Restructuring and reorganization charges	$ 4,870	$ 5,328	$ 4,834
Restructuring and reorganization reserve	675	933	822	$ 4,336
Depreciation	24,835	22,926	21,422
Current Liabilities
Restructuring Cost And Reserve [Line Items]
Restructuring and reorganization reserve	700
Furniture and Fixtures and Leasehold Improvements
Restructuring Cost And Reserve [Line Items]
Depreciation	1,200
Termination Benefits Related to Organizational Changes
Restructuring Cost And Reserve [Line Items]
Restructuring and reorganization charges	$ 3,400	$ 4,200	$ 2,500

X

- Definition

Amount associated with exit or disposal activities pursuant to an authorized plan.

+ References

No definition available.

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

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- Definition

The number of positions eliminated during the period as a result of restructuring activities.

+ References

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-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://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4(b)(2))
-URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747

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