INVESTMENTS AND AVAILABLE-FOR-SALE SECURITIES - Schedule of Long-term Investments (Details) ¥ in Thousands, $ in Thousands	Dec. 31, 2023 CNY (¥)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 CNY (¥)
-Debt investment
Available-for-sale securities - current	¥ 0	$ 0	¥ 104,499
Available-for-sale securities-non-current	104,134	14,667	0
Subtotal	104,134		104,499
-Equity investment
Investments accounted for under the equity method.	1,199,982		1,287,201
Equity securities without readily determinable fair values	358,526		245,000
Equity securities with readily determinable fair values	330,414
Equity securities applying fair value option	228,706		178,871
Subtotal	2,117,628	$ 298,262	1,711,072
Total	¥ 2,221,762		¥ 1,815,571

Amount of investment in equity security with readily determinable fair value.

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The total amount of equity investments that are intended to be held for an extended period of time (longer than one operating cycle).

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as noncurrent.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as noncurrent.

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Amount of investment in equity security without readily determinable fair value.

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Sum of the carrying amounts as of the balance sheet date of all investments.

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