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Restructuring - Summary of Restructuring Liability (Detail) - USD ($) $ in Thousands | 3 Months Ended
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Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021
Restructuring Cost And Reserve [Line Items] |  |  |
Balance, beginning of period | $ 4,961 | $ 4,646 | $ 5,627
Additions, charged to restructuring expenses | 939 | 2,063 | 891
Cash payments | (3,575) | (1,587) | (1,603)
Non-cash utilization | (26) | (97) | (95)
Change in estimate | (190) | 28 | (100)
Currency translation | (18) | (92) | (74)
Balance, end of period | 2,091 | 4,961 | 4,646
Employee Separation Costs |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |
Balance, beginning of period | 4,961 | 4,646 | 5,627
Additions, charged to restructuring expenses | 296 | 1,478 | 632
Cash payments | (2,958) | (1,099) | (1,439)
Change in estimate | (190) | 28 | (100)
Currency translation | (18) | (92) | (74)
Balance, end of period | 2,091 | 4,961 | 4,646
Accelerated Depreciation |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |
Additions, charged to restructuring expenses | 26 | 97 | 95
Non-cash utilization | (26) | (97) | (95)
Other Restructuring |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |
Additions, charged to restructuring expenses | 617 | 488 | 164
Cash payments | $ (617) | $ (488) | $ (164)

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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. + 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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 17 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3367-108585 + Details
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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://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 + Details
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- Definition Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability. + References 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) -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)(2)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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