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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - VIEs Financial information (Details) ¥ in Thousands, $ in Thousands | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2024 CNY (¥) | Sep. 30, 2024 USD ($) | Sep. 30, 2023 CNY (¥) | Sep. 30, 2024 USD ($) | Jan. 01, 2024 CNY (¥) | Dec. 31, 2023 CNY (¥) | Jan. 01, 2023 CNY (¥)
Current assets: |  |  |  |  |  |  |
Cash and cash equivalents | ¥ 1,524,819 |  | ¥ 2,702,523 | $ 217,285 |  | ¥ 2,243,537 |
Restricted cash | 556,266 |  | 320,809 | 79,267 |  | 2,854,568 |
Prepaid expenses and other current assets | 2,665,924 |  |  | 379,891 |  | 2,375,341 |
Total current assets | 6,942,335 |  |  | 989,274 |  | 9,823,478 |
Non-current assets: |  |  |  |  |  |  |
Property and equipment, net | 15,153,253 |  |  | 2,159,321 |  | 13,024,393 |
Intangible assets, net | 1,347,751 |  |  | 192,053 |  | 1,383,406 |
Land use rights, net | 588,846 |  |  | 83,910 |  | 602,503 |
Operating lease right-of-use assets, net | 4,412,834 |  |  | 628,824 |  | 4,012,329 |
Restricted cash | 882 |  | 882 | 126 |  | 882 |
Deferred tax assets, net | 309,390 |  |  | 44,088 |  | 247,644 |
Other non-current assets | 371,501 |  |  | 52,938 |  | 533,319 |
Long-term investments, net | 798,638 |  |  | 113,805 |  | 757,949 |
Total non-current assets | 22,983,095 |  |  | 3,275,065 |  | 20,562,425 |
Total assets | 29,925,430 |  |  | 4,264,339 |  | 30,385,903 |
Current liabilities: |  |  |  |  |  |  |
Accounts and notes payable | 728,361 |  |  | 103,791 |  | 696,177 |
Accrued expenses and other payables | 2,527,584 |  |  | 360,178 |  | 2,783,102 |
Advances from customers | 1,752,935 |  |  | 249,791 |  | 1,605,247 |
Deferred revenue | 87,354 |  |  | 12,448 | ¥ 95,477 | 95,477 | ¥ 95,078
Income taxes payable | 51,554 |  |  | 7,346 |  | 35,197 |
Current portion of finance lease liabilities | 107,785 |  |  | 15,359 |  | 115,806 |
Current portion of long-term borrowings | 521,643 |  |  |  |  | 334,511 |
Current portion of deferred government grants | 8,538 |  |  | 1,217 |  | 8,062 |
Current portion of operating lease liabilities | 874,957 |  |  | 124,680 |  | 780,164 |
Total current liabilities | 8,363,584 |  |  | 1,191,801 |  | 11,437,132 |
Non-current liabilities: |  |  |  |  |  |  |
Non-current portion of finance lease liabilities | 1,169,573 |  |  | 166,663 |  | 1,159,525 |
Unrecognized tax benefits | 98,457 |  |  | 14,030 |  | 98,457 |
Deferred tax liabilities | 703,390 |  |  | 100,232 |  | 688,362 |
Deferred government grants | 265,941 |  |  | 37,896 |  | 145,112 |
Non-current portion of operating lease liabilities | 3,587,701 |  |  | 511,243 |  | 3,270,759 |
Total non-current liabilities | 14,700,982 |  |  | 2,094,873 |  | 12,434,388 |
Total liabilities | 23,064,566 |  |  | 3,286,674 |  | 23,871,520 |
Net income | 244,973 | $ 34,910 | (173,881) |  |  |  |
Net cash generated from operating activities | 1,433,157 | 204,223 | 1,332,800 |  |  |  |
Net cash used in investing activities | (3,014,548) | (429,568) | (2,503,174) |  |  |  |
Net cash used in financing activities | (1,412,900) | (201,338) | 1,183,461 |  |  |  |
Net decrease in cash and cash equivalents and restricted cash | (3,017,020) | $ (429,922) | 34,720 |  |  |  |
Related Party |  |  |  |  |  |  |
Current assets: |  |  |  |  |  |  |
Amounts due from related parties | 317,619 |  |  | 45,260 |  | 277,237 |
Current liabilities: |  |  |  |  |  |  |
Amounts due to related parties | 354,903 |  |  | $ 50,573 |  | 356,080 |
Variable Interest Entity, Primary Beneficiary |  |  |  |  |  |  |
Current assets: |  |  |  |  |  |  |
Cash and cash equivalents | 887,756 |  |  |  |  | 923,692 |
Restricted cash | 336,835 |  |  |  |  | 434,421 |
Accounts receivable | 1,643,749 |  |  |  |  | 1,412,456 |
Prepaid expenses and other current assets | 2,338,063 |  |  |  |  | 2,081,948 |
Total current assets | 5,265,570 |  |  |  |  | 4,911,340 |
Non-current assets: |  |  |  |  |  |  |
Property and equipment, net | 7,335,083 |  |  |  |  | 7,398,768 |
Intangible assets, net | 448,077 |  |  |  |  | 453,606 |
Land use rights, net | 55,796 |  |  |  |  | 56,971 |
Operating lease right-of-use assets, net | 4,361,070 |  |  |  |  | 3,948,272 |
Restricted cash | 382 |  |  |  |  | 382 |
Deferred tax assets, net | 257,352 |  |  |  |  | 208,266 |
Other non-current assets | 186,563 |  |  |  |  | 148,383 |
Long-term investments, net | 160,101 |  |  |  |  | 168,377 |
Total non-current assets | 12,804,424 |  |  |  |  | 12,383,025 |
Total assets | 18,069,994 |  |  |  |  | 17,294,365 |
Current liabilities: |  |  |  |  |  |  |
Short-term bank borrowings | 552,270 |  |  |  |  | 30,000 |
Accounts and notes payable | 603,469 |  |  |  |  | 493,837 |
Accrued expenses and other payables | 1,116,332 |  |  |  |  | 1,616,423 |
Advances from customers | 1,752,935 |  |  |  |  | 1,605,247 |
Deferred revenue | 81,087 |  |  |  |  | 83,546 |
Income taxes payable | 14,038 |  |  |  |  | 13,531 |
Amounts due to inter-companies, net * | 3,618,592 |  |  |  |  | 4,736,035 |
Current portion of finance lease liabilities | 86,861 |  |  |  |  | 97,388 |
Current portion of long-term borrowings | 977,069 |  |  |  |  | 544,803 |
Current portion of deferred government grants | 8,538 |  |  |  |  | 8,062 |
Current portion of operating lease liabilities | 858,491 |  |  |  |  | 754,935 |
Total current liabilities | 10,024,584 |  |  |  |  | 10,339,887 |
Non-current liabilities: |  |  |  |  |  |  |
Amounts due to inter-companies, net* | 1,020,972 |  |  |  |  | 1,020,972 |
Long-term borrowings | 3,075,078 |  |  |  |  | 2,464,811 |
Non-current portion of finance lease liabilities | 748,256 |  |  |  |  | 720,954 |
Unrecognized tax benefits | 98,082 |  |  |  |  | 98,082 |
Deferred tax liabilities | 124,516 |  |  |  |  | 139,174 |
Deferred government grants | 35,771 |  |  |  |  | 11,862 |
Non-current portion of operating lease liabilities | 3,550,870 |  |  |  |  | 3,230,506 |
Total non-current liabilities | 8,653,545 |  |  |  |  | 7,686,361 |
Total liabilities | 18,678,129 |  |  |  |  | 18,026,248 |
Net revenues | 5,346,385 |  | 4,797,734 |  |  |  |
Net income | 142,932 |  | 42,318 |  |  |  |
Net cash generated from operating activities | 1,380,727 |  | 1,022,231 |  |  |  |
Net cash used in investing activities | (1,003,813) |  | (1,053,087) |  |  |  |
Net cash used in financing activities | (510,436) |  | (181,814) |  |  |  |
Net decrease in cash and cash equivalents and restricted cash | (133,522) |  | ¥ (212,670) |  |  |  |
Variable Interest Entity, Primary Beneficiary | Related Party |  |  |  |  |  |  |
Current assets: |  |  |  |  |  |  |
Amounts due from related parties | 59,167 |  |  |  |  | 58,823 |
Current liabilities: |  |  |  |  |  |  |
Amounts due to related parties | ¥ 354,902 |  |  |  |  | ¥ 356,080 |

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