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Restructuring - Summary of Restructuring Liability (Detail) - USD ($) $ in Thousands | 3 Months Ended
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Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020
Restructuring Cost And Reserve [Line Items] |  |  |
Balance, beginning of period | $ 5,151 | $ 7,187 | $ 6,065
Additions, charged to restructuring expenses | 636 | 1,534 | 3,766
Change in estimate | (352) | (2,132) |
Cash payments | (1,122) | (1,459) | (2,134)
Non-cash utilization | (122) | (200) | (242)
Currency translation |  | 221 | (268)
Currency translation and other | 92 |  |
Balance, end of period | 4,283 | 5,151 | 7,187
Employee Separation Costs |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |
Balance, beginning of period | 5,116 | 7,058 | 5,994
Additions, charged to restructuring expenses | 514 | 1,301 | 3,302
Change in estimate | (334) | (2,132) |
Cash payments | (1,069) | (1,286) | (1,932)
Currency translation |  | 175 | (306)
Currency translation and other | 56 |  |
Balance, end of period | 4,283 | 5,116 | 7,058
Accelerated Depreciation Charges |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |
Additions, charged to restructuring expenses | 122 | 200 | 242
Non-cash utilization | (122) | (200) | (242)
Other Restructuring |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |
Balance, beginning of period | 35 | 129 | 71
Additions, charged to restructuring expenses |  | 33 | 222
Change in estimate | (18) |  |
Cash payments | (53) | (173) | (202)
Currency translation |  | 46 | 38
Currency translation and other | $ 36 |  |
Balance, end of period |  | $ 35 | $ 129

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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 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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