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Commitments and Contingencies - Additional Information (Detail) Claim in Thousands, $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 USD ($) Claim | Jun. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2020 USD ($) Claim
Asbestos Related Matters [Member] |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |
Outstanding Active Pending Asbestos Claims | Claim |  | 25 |  |  | 25
Asbestos remeasurement | [1] |  |  |  | $ 135.9
Percentage of Asbestos Asset Related to Coverage in Place Agreements |  | 76.00% |  |  | 76.00%
Asbestos Related Matters [Member] | Asset [Member] |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |
Asbestos remeasurement |  |  |  |  | $ (19.8)
Asbestos Related Matters [Member] | Liability [Member] |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |
Asbestos remeasurement | [1] |  |  |  | 155.7
Asbestos Liability Gross Current And Noncurrent Ending Balance |  | $ 932.0 |  |  | 932.0
Asbestos Related Matters [Member] |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |
Asbestos Settlement Agreement Cash Proceeds |  |  |  | $ 66.4 |
Asbestos Related Costs (Benefit), Settlement Agreement |  | $ 52.1 | $ (4.2) | $ 52.5 |
Continuing Operations [Member] | Asbestos Related Matters [Member] |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |
Asbestos remeasurement | [1] |  |  |  | $ 135.9
[1] | In the third quarter of 2020, we extended our projection to include pending claims and claims expected to be filed through 2052, reflecting the full time period over which we expect asbestos-related claims to be filed against us.

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- Definition During 2013, ITT executed a final settlement agreement (the 2013 Settlement) with an insurer to settle responsibility for multiple categories of insured claims, including pending and future product liability claims. Under the terms of the 2013 Settlement, the insurer agreed to a specified series of payments over the course of the next five years, resulting in a one-time benefit of $31.0. + References No definition available. + Details
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- Definition Asbestos Settlement Agreement Cash Proceeds + References No definition available. + Details
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- Definition Number of pending claims pertaining to a loss contingency. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14435-108349 + Details
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