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Fair Value Measurements and Long-term Investments - Narrative (Details) - USD ($) $ in Millions		3 Months Ended	12 Months Ended
	Mar. 27, 2024	Jun. 30, 2025	Dec. 31, 2018	Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term investments				$ 5.0
Equity securities without readily determinable fair value, downward price adjustment, annual amount		$ 5.0
Other Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term investments		$ 30.5		$ 24.0
Meitu, Inc.
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of hierarchy securities	$ 18.4
Equity securities, realized gain	$ 3.4
Variable Interest Entity, Not Primary Beneficiary \| Zcool Network Technology Limited \| Convertible Preferred Stock
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment value			$ 15.0