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Segments - Holdings - Reconciliation of Net Income (Loss) to Adjusted EBITDA (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Mar. 31, 2024 | Jun. 30, 2023 | Mar. 31, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Add (deduct): |  |  |  |  |  |  |
Interest expense | [1] | $ (34.6) |  | $ (37.1) |  | $ (72.3) | $ (73.9)
Other loss (income), net | [2] | 0.1 |  | (12.1) |  | (17.6) | (14.0)
Depreciation and amortization |  | 49.8 |  | 52.8 |  | 99.2 | 107.7
Impairment of long-lived and other assets |  | 0.0 |  | 9.4 |  | 0.0 | 10.1
Loss (gain) on disposal of assets and other |  | 1.7 |  | (3.0) |  | 2.1 | (2.7)
Loss on debt amendments and extinguishments |  | 2.5 |  | 10.7 |  | 2.5 | 10.7
Non-cash rent expense |  | (3.2) |  | (4.5) |  | (7.6) | (8.4)
Share based awards compensation expense |  | 9.3 |  | 6.8 |  | 15.7 | 12.5
Adjusted EBITDA |  | 142.1 |  | 231.5 |  | 212.8 | 317.7
CNK |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Net income |  | 46.6 | $ 25.3 | 120.4 | $ (2.5) | 71.9 | 117.9
Add (deduct): |  |  |  |  |  |  |
Income tax (benefit) expense |  | (0.9) |  | 12.3 |  | (28.6) | 8.4
Interest expense |  | (34.6) |  | (37.1) |  | (72.3) | (73.9)
Cash distributions from equity investees |  |  |  |  |  | 2.9 | 1.6
Depreciation and amortization |  | 49.8 |  | 52.8 |  | 99.2 | 107.7
Impairment of long-lived and other assets |  | 0.0 |  | 9.4 |  | 0.0 | 10.1
Loss on debt amendments and extinguishments |  | 2.5 |  | 10.7 |  | 2.5 | 10.7
Non-cash rent expense |  |  |  |  |  | (7.6) | (8.4)
Share based awards compensation expense |  |  |  |  |  | 15.7 | 12.5
Other Cash Distributions From Equity Investees [Member] |  |  |  |  |  |  |
Add (deduct): |  |  |  |  |  |  |
Cash distributions from equity investees | [3] | $ 1.6 |  | $ 1.6 |  | $ 2.9 | $ 1.6
[1] | Includes amortization of debt issuance costs, amortization of original issue discount, and amortization of accumulated gains for amended swap agreements.
[2] | Includes interest income, foreign currency exchange and other related loss, interest expense - NCM, equity in income (loss) of affiliates and net gain (loss) on investment in NCMI.
[3] | Reflects cash distributions received from equity investees that were recorded as a reduction of the respective investment balances. These distributions are reported entirely within the U.S. operating segment.

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