XML 46 R28.htm IDEA: XBRL DOCUMENT
v3.26.1

Investments (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2026
Equity Method Investments, Joint Ventures And Cost Method Investments [Abstract] |
Cost and Equity Method Investments | As of March 31, 2026 and December 31, 2025, the Company’s investments are included within Investments in the accompanying condensed consolidated balance sheets and consisted of the following:
|  |  |  | Investment As of
|  | Ownership Percentage as of March 31, 2026 |  | March 31, 2026 |  | December 31, 2025
Equity method investments: |  |  |  |  |  |
SACO Technologies Inc. (“SACO”) |  | 30% |  | $ | 16,894 |  |  | $ | 16,981 |
Gotham Advanced Media and Entertainment, LLC (“GAME”) |  | 50% |  | 8,284 |  |  | 9,354 |
Equity investments without readily determinable fair values |  |  |  | 8,722 |  |  | 8,721 |
Other equity investments with readily determinable fair values held in trust under the Company’s Executive Deferred Compensation Plan (a) |  |  |  | 3,750 |  |  | 3,669 |
Total investments |  |  |  | $ | 37,650 |  |  | $ | 38,725 |
_________________ (a) The Company’s investments with readily determinable fair values are classified within Level I of the fair value hierarchy as they are valued based on quoted prices in active markets. Refer to Note 11. Pension Plans and Other Postretirement Benefit Plan, for further detail on the Company’s Executive Deferred Compensation Plan.

X
- Definition Tabular disclosure of cost and equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information. [Table Text Block] + References No definition available. + Details
Name: | sphr_CostAndEquityMethodInvestmentsTableTextBlock
Namespace Prefix: | sphr_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure for the Company's equity method investments including joint ventures as well As cost method investments [Abstract] + References No definition available. + Details
Name: | sphr_EquityMethodInvestmentsJointVenturesAndCostMethodInvestmentsAbstract
Namespace Prefix: | sphr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration