ORGANIZATION AND DESCRIPTION OF BUSINESS	6 Months Ended
ORGANIZATION AND DESCRIPTION OF BUSINESS	Jun. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
ORGANIZATION AND DESCRIPTION OF BUSINESS	ORGANIZATION AND DESCRIPTION OF BUSINESS Business Overview Celsius Holdings, Inc. (the “Company” or “Celsius”) was incorporated under the laws of the State of Nevada on April 26, 2005. Celsius is a functional energy drink company operating in the United States (“U.S.”) and internationally that develops, processes, markets, sells, manufactures and distributes differentiated products with innovative formulas, many of which are clinically proven, as premium lifestyle beverages designed to fuel active and wellness oriented consumers. The Company’s portfolio primarily consists of energy drinks but also includes other wellness products offered under the Celsius brand and, following our acquisition of Alani Nutrition LLC ("Alani Nu") on April 1, 2025, the Alani Nu brand, which together serve a broad range of consumers across the functional energy and other adjacent wellness categories. The Company's products are available in the U.S., Canada, Europe, the Middle East and the Asia-Pacific region. They are sold through multiple channels, including conventional grocery, natural-food and convenience stores, fitness centers, mass-market and vitamin-specialty retailers, and e-commerce platforms. Acquisition of Alani Nu On April 1, 2025 (the "Closing Date"), the Company completed the acquisition of Alani Nu (the "Acquisition") from its equity holders, Max Clemons, Trey Steiger, Katy E. Schneider, R. Haydn Schneider and certain related trusts (collectively, the “Sellers”) for a total consideration comprising (i) $1,275.0 million in cash, subject to adjustment as set forth in the purchase agreement, (ii) an aggregate of 22,451,224 shares of the Company's common stock and (iii) up to $25.0 million in additional cash consideration, payable only if revenue of Alani Nu’s products meet or exceed an agreed upon target for calendar year 2025. For additional information, see Note 5. Acquisitions. On the Closing Date, Celsius and certain of its subsidiaries, the lenders and issuing banks from time to time party thereto and UBS AG, Stamford Branch, as administrative agent and collateral agent, entered into a credit agreement, which provides for a term loan facility in an aggregate principal amount of up to $900 million, which was fully drawn on the Closing Date to fund a portion of the cash consideration paid to the Sellers (the remaining cash consideration was funded with existing cash on hand), and a revolving credit facility in an aggregate principal amount of up to $100 million, which was undrawn as of the Closing Date. For additional information, see Note 6. Debt. Agreements with PepsiCo Inc. On August 1, 2022, the Company entered into multiple agreements with PepsiCo Inc. (“Pepsi”), including a long-term agreement that resulted in Pepsi becoming the primary distribution supplier for Celsius products in the U.S. (the “Distribution Agreement”). Under this agreement, the Company granted Pepsi a right of first offer in the event the Company intends to manufacture, distribute or sell products in certain additional countries or channels during the term of the agreement. In connection with entering into these agreements, the Company issued and sold to Pepsi approximately 1.5 million shares of the Company's Series A Convertible Preferred Stock (“Series A” or “Series A Preferred Stock”) in exchange for cash proceeds of $550 million, excluding transaction costs. For additional information regarding the Company's agreements with Pepsi, see Note 4. Revenue, Note 11. Related Party Transactions and Note 12. Mezzanine Equity.