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Property and Equipment and Other Noncurrent Assets - Summary of Capitalized Cloud Computing Implementation Cost (Details) - USD ($) $ in Millions | 3 Months Ended |
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Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022
Property, Plant and Equipment [Abstract] |  |  |
Capitalized cloud computing implementation cost | $ 11.4 |  | $ 11.6
Capitalized costs amortized during the period | $ (0.2) | $ (0.2) |

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- Definition Capitalized cloud computing implementation cost. + References No definition available. + Details
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Namespace Prefix: | ichr_
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Balance Type: | debit
Period Type: | instant

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- Definition Amount of amortization expense for capitalized implementation cost from hosting arrangement that is service contract. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 40 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=118198657&loc=SL118198666-228104 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
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