Film Related Obligations (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
Jun. 30, 2024	Mar. 31, 2024
Production Loans	$ 1,306.4	$ 1,292.2
Accounts receivable	654.5	753.0
Secured Debt
Production Loans	1,086.9
Unsecured Debt
Production Loans	$ 219.5
Production Loans
Production loans , programming notes, or other loans, weighted average interest rate	6.85%
Programming Notes
Production loans , programming notes, or other loans, weighted average interest rate	8.73%
Production Tax Credit Facility \| Revolving Credit Facility
Credit facility, maximum principal amount	$ 260.0
Collateral	336.8
Credit facility, available amount	$ 0.0
Production Tax Credit Facility \| Revolving Credit Facility \| Base Rate
Basis spread on variable interest rate (as a percent)	0.50%
Production Tax Credit Facility \| Revolving Credit Facility \| SOFR
Effective interest rate	6.93%
Production Tax Credit Facility \| Revolving Credit Facility \| SOFR \| Minimum
Basis spread on variable interest rate (as a percent)	0.10%
Production Tax Credit Facility \| Revolving Credit Facility \| SOFR \| Maximum
Basis spread on variable interest rate (as a percent)	0.25%
Production Tax Credit Facility \| Revolving Credit Facility \| Applicable Margin
Basis spread on variable interest rate (as a percent)	1.50%
Backlog Facility \| Revolving Credit Facility
Debt instrument, term	2 years 90 days
Backlog Facility \| Revolving Credit Facility \| SOFR \| Minimum
Basis spread on variable interest rate (as a percent)	0.10%
Backlog Facility \| Revolving Credit Facility \| SOFR \| Maximum
Basis spread on variable interest rate (as a percent)	0.25%
Backlog Facility \| Revolving Credit Facility \| Applicable Margin \| Minimum
Basis spread on variable interest rate (as a percent)	1.25%
Backlog Facility \| Revolving Credit Facility \| Applicable Margin \| Maximum
Basis spread on variable interest rate (as a percent)	1.50%
Backlog Facility \| Secured Debt
Credit facility, maximum principal amount	$ 175.0
Credit facility, outstanding amount	175.0	175.0
Credit facility, available amount	$ 0.0
Backlog Facility \| Secured Debt \| SOFR
Effective interest rate	6.58%
Backlog Facility \| Secured Debt \| Applicable Margin
Basis spread on variable interest rate (as a percent)	1.15%
IP Credit Facility \| Secured Debt
Credit facility, maximum principal amount	$ 161.9
IP Credit Facility \| Secured Debt \| Base Rate
Basis spread on variable interest rate (as a percent)	1.25%
IP Credit Facility \| Secured Debt \| SOFR
Effective interest rate	7.77%
IP Credit Facility \| Secured Debt \| SOFR \| Minimum
Basis spread on variable interest rate (as a percent)	0.11%
Floor on SOFR (as a percent)	0.25%
IP Credit Facility \| Secured Debt \| SOFR \| Maximum
Basis spread on variable interest rate (as a percent)	0.26%
IP Credit Facility \| Secured Debt \| Applicable Margin
Basis spread on variable interest rate (as a percent)	2.25%
Distribution Loan Agreement \| Loans Payable
Production loans , programming notes, or other loans, weighted average interest rate	6.84%
Loan amount	$ 138.0	$ 112.3
Accounts receivable	84.8
Contracted receivables not yet reflected as accounts receivable	81.1
Distribution Agreement Loan One \| Loans Payable
Loan amount	67.9
Distribution Agreement Loan Two \| Loans Payable
Loan amount	$ 70.1

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Principal amount of production and related loans outstanding.

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Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The effective interest rate at the end of the reporting period.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Amount of long-term loans payable classified as other.

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Amount due from parties in nontrade transactions, classified as other.

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