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IMPACT OF THE COVID-19 PANDEMIC - Schedule of Restructuring Plan (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Unusual Or Infrequent Item [Line Items] |  |  |  |
Restructuring Reserve, Beginning Balance |  | $ 0.0 |  |
Restructuring costs |  | 0.0 | $ (0.5) | $ (1.0)
Restructuring Reserve, Ending Balance |  | 0.0 | 0.0 |
2020 Restructuring Plan | U.S. Operating Segment |  |  |  |
Unusual Or Infrequent Item [Line Items] |  |  |  |
Restructuring Reserve, Beginning Balance |  | 0.0 | 1.3 | 6.6
Amounts paid |  |  | (0.9) | (4.3)
Reserve adjustments | [1] |  | (0.4) | (1.0)
Restructuring Reserve, Ending Balance |  |  | 0.0 | 1.3
2020 Restructuring Plan | U.S. Operating Segment | Employee Related |  |  |  |
Unusual Or Infrequent Item [Line Items] |  |  |  |
Restructuring Reserve, Beginning Balance |  | 0.0 | 0.4 | 0.9
Amounts paid |  |  | (0.4) | (0.4)
Reserve adjustments | [1] |  | 0.0 | (0.1)
Restructuring Reserve, Ending Balance |  |  | 0.0 | 0.4
2020 Restructuring Plan | U.S. Operating Segment | Facility Closure Costs |  |  |  |
Unusual Or Infrequent Item [Line Items] |  |  |  |
Restructuring Reserve, Beginning Balance |  | 0.0 | 0.9 | 5.7
Amounts paid |  |  | (0.5) | (3.9)
Reserve adjustments | [1] |  | (0.4) | (0.9)
Restructuring Reserve, Ending Balance |  |  | 0.0 | 0.9
2020 Restructuring Plan | International Operating Segment |  |  |  |
Unusual Or Infrequent Item [Line Items] |  |  |  |
Restructuring Reserve, Beginning Balance |  | 0.0 | 0.1 | 0.1
Amounts paid |  |  | 0.0 | 0.0
Reserve adjustments | [1] |  | (0.1) | 0.0
Restructuring Reserve, Ending Balance |  |  | 0.0 | 0.1
2020 Restructuring Plan | International Operating Segment | Employee Related |  |  |  |
Unusual Or Infrequent Item [Line Items] |  |  |  |
Restructuring Reserve, Beginning Balance |  | 0.0 | 0.0 | 0.0
Amounts paid |  |  | 0.0 | 0.0
Reserve adjustments | [1] |  | 0.0 | 0.0
Restructuring Reserve, Ending Balance |  |  | 0.0 | 0.0
2020 Restructuring Plan | International Operating Segment | Facility Closure Costs |  |  |  |
Unusual Or Infrequent Item [Line Items] |  |  |  |
Restructuring Reserve, Beginning Balance |  | 0.0 | 0.1 | 0.1
Amounts paid |  |  | 0.0 | 0.0
Reserve adjustments | [1] |  | (0.1) | 0.0
Restructuring Reserve, Ending Balance |  |  | 0.0 | 0.1
2020 Restructuring Plan | Consolidated |  |  |  |
Unusual Or Infrequent Item [Line Items] |  |  |  |
Restructuring Reserve, Beginning Balance |  | 0.0 | 1.4 | 6.7
Amounts paid |  |  | (0.9) | (4.3)
Reserve adjustments | [1] |  | (0.5) | (1.0)
Restructuring Reserve, Ending Balance |  |  | 0.0 | 1.4
2020 Restructuring Plan | Consolidated | Employee Related |  |  |  |
Unusual Or Infrequent Item [Line Items] |  |  |  |
Restructuring Reserve, Beginning Balance |  | 0.0 | 0.4 | 0.9
Amounts paid |  |  | (0.4) | (0.4)
Reserve adjustments | [1] |  | 0.0 | (0.1)
Restructuring Reserve, Ending Balance |  |  | 0.0 | 0.4
2020 Restructuring Plan | Consolidated | Facility Closure Costs |  |  |  |
Unusual Or Infrequent Item [Line Items] |  |  |  |
Restructuring Reserve, Beginning Balance |  | $ 0.0 | 1.0 | 5.8
Amounts paid |  |  | (0.5) | (3.9)
Reserve adjustments | [1] |  | (0.5) | (0.9)
Restructuring Reserve, Ending Balance |  |  | $ 0.0 | $ 1.0
[1] | Amounts were primarily adjustments based on final facility lease payments for certain closed theatres as compared with original estimates recorded.

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- Definition Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 + 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://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482017/420-10-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479823/420-10-S99-2 + Details
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