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BUSINESS COMBINATIONS - Equity Interest acquired (Details) ¥ in Thousands |  |  |  |  |  |  | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 18, 2020 CNY (¥) | Nov. 17, 2020 CNY (¥) | Jun. 05, 2020 CNY (¥) item | Oct. 18, 2019 CNY (¥) | Jun. 01, 2018 CNY (¥) | May 02, 2018 CNY (¥) | Dec. 31, 2020 CNY (¥) | May 31, 2020 CNY (¥) | Dec. 31, 2019 CNY (¥) | Dec. 31, 2018 CNY (¥)
The identifiable assets acquired and liabilities assumed in the business combination |  |  |  |  |  |  |  |  |  |
Gain from purchase price adjustment |  |  |  |  |  |  | ¥ (55,154) |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed: |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  | 2,596,393 |  | ¥ 1,905,840 | ¥ 1,751,970
Remaining consideration payable |  |  |  |  |  |  | 888,693 |  | 362,032 |
Guangzhou 3 |  |  |  |  |  |  |  |  |  |
The identifiable assets acquired and liabilities assumed in the business combination |  |  |  |  |  |  |  |  |  |
Fair value of consideration |  |  |  |  |  | ¥ 247,937 |  |  |  |
Purchase price |  |  |  |  |  | 262,244 |  | ¥ 207,310 |  |
Contingent consideration |  |  |  |  |  | 245,244 |  |  | 118,336 |
Gain from purchase price adjustment |  |  |  |  |  |  | 55,154 |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed: |  |  |  |  |  |  |  |  |  |
Cash |  |  |  |  |  | (62) |  |  |  |
Accounts receivable |  |  |  |  |  | (13,995) |  |  |  |
Property and equipment |  |  |  |  |  | (780,312) |  |  |  |
Identifiable intangible assets |  |  |  |  |  | (130,000) |  |  |  |
Other assets |  |  |  |  |  | (43,039) |  |  |  |
Accounts payable |  |  |  |  |  | 471,532 |  |  |  |
Finance lease and other financing obligations, non-current |  |  |  |  |  | 282,051 |  |  |  |
Short-term borrowings |  |  |  |  |  | 47,580 |  |  |  |
Long-term borrowings |  |  |  |  |  | 30,000 |  |  |  |
Deferred tax liabilities |  |  |  |  |  | 26,503 |  |  |  |
Other liabilities |  |  |  |  |  | 2,849 |  |  |  |
Total identifiable net assets |  |  |  |  |  | (106,893) |  |  |  |
Goodwill |  |  |  |  |  | ¥ 141,044 |  |  |  |
Guangzhou 3 | Other payables |  |  |  |  |  |  |  |  |  |
The identifiable assets acquired and liabilities assumed in the business combination |  |  |  |  |  |  |  |  |  |
Contingent consideration |  |  |  |  |  |  | 36,412 |  | 95,274 |
Guangzhou 3 | Other long-term liabilities |  |  |  |  |  |  |  |  |  |
The identifiable assets acquired and liabilities assumed in the business combination |  |  |  |  |  |  |  |  |  |
Contingent consideration |  |  |  |  |  |  |  |  | ¥ 23,062 |
Shanghai 11 |  |  |  |  |  |  |  |  |  |
The identifiable assets acquired and liabilities assumed in the business combination |  |  |  |  |  |  |  |  |  |
Fair value of consideration |  |  |  |  | ¥ 319,119 |  |  |  |  |
Purchase price |  |  |  |  | 320,000 |  |  |  |  |
Contingent consideration |  |  |  |  | 70,000 |  |  |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed: |  |  |  |  |  |  |  |  |  |
Cash |  |  |  |  | (404) |  |  |  |  |
Property and equipment |  |  |  |  | (233,405) |  |  |  |  |
Identifiable intangible assets |  |  |  |  | (57,000) |  |  |  |  |
Other assets |  |  |  |  | (94,647) |  |  |  |  |
Accounts payable |  |  |  |  | 91,136 |  |  |  |  |
Deferred tax liabilities |  |  |  |  | 9,995 |  |  |  |  |
Other liabilities |  |  |  |  | 5,377 |  |  |  |  |
Total identifiable net assets |  |  |  |  | (278,948) |  |  |  |  |
Goodwill |  |  |  |  | ¥ 40,171 |  |  |  |  |
Target Group Guangzhou 6 |  |  |  |  |  |  |  |  |  |
The identifiable assets acquired and liabilities assumed in the business combination |  |  |  |  |  |  |  |  |  |
Fair value of consideration |  |  |  | ¥ 423,075 |  |  |  |  |  |
Purchase price |  |  |  | 431,727 |  |  |  |  |  |
Contingent consideration |  |  |  | 243,736 |  |  |  |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed: |  |  |  |  |  |  |  |  |  |
Cash |  |  |  | (12,091) |  |  |  |  |  |
Property and equipment |  |  |  | (493,026) |  |  |  |  |  |
Operating lease ROU assets |  |  |  | (9,168) |  |  |  |  |  |
Identifiable intangible assets |  |  |  | (15,000) |  |  |  |  |  |
Other assets |  |  |  | (44,549) |  |  |  |  |  |
Accounts payable |  |  |  | 118,486 |  |  |  |  |  |
Finance lease and other financing obligations, current |  |  |  | 16,828 |  |  |  |  |  |
Operating lease liabilities, current |  |  |  | 886 |  |  |  |  |  |
Finance lease and other financing obligations, non-current |  |  |  | 157,366 |  |  |  |  |  |
Operating lease liabilities, non- current |  |  |  | 8,282 |  |  |  |  |  |
Deferred tax liabilities |  |  |  | 1,040 |  |  |  |  |  |
Other liabilities |  |  |  | 1,741 |  |  |  |  |  |
Total identifiable net assets |  |  |  | (269,205) |  |  |  |  |  |
Goodwill |  |  |  | ¥ 153,870 |  |  |  |  |  |
Target Group Guangzhou 6 | Other payables |  |  |  |  |  |  |  |  |  |
The identifiable assets acquired and liabilities assumed in the business combination |  |  |  |  |  |  |  |  |  |
Contingent consideration |  |  |  |  |  |  | 225,920 |  |  |
Beijing 10, 11 and 12 |  |  |  |  |  |  |  |  |  |
The identifiable assets acquired and liabilities assumed in the business combination |  |  |  |  |  |  |  |  |  |
Fair value of consideration |  |  | ¥ 788,554 |  |  |  |  |  |  |
Purchase price |  |  | 788,554 |  |  |  |  |  |  |
Contingent consideration |  |  | ¥ 133,032 |  |  |  |  |  |  |
Number of data center projects | item |  |  | 3 |  |  |  |  |  |  |
Effective settlement of pre-existing relationships upon consolidation |  |  | ¥ 34,477 |  |  |  |  |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed: |  |  |  |  |  |  |  |  |  |
Cash |  |  | (2,349) |  |  |  |  |  |  |
Accounts receivable |  |  | (83,134) |  |  |  |  |  |  |
Property and equipment |  |  | (2,007,608) |  |  |  |  |  |  |
Operating lease ROU assets |  |  | (94,821) |  |  |  |  |  |  |
Identifiable intangible assets |  |  | (191,000) |  |  |  |  |  |  |
Other assets |  |  | (142,629) |  |  |  |  |  |  |
Accounts payable |  |  | 756,907 |  |  |  |  |  |  |
Finance lease and other financing obligations, current |  |  | 174,959 |  |  |  |  |  |  |
Operating lease liabilities, current |  |  | 6,982 |  |  |  |  |  |  |
Finance lease and other financing obligations, non-current |  |  | 1,062,114 |  |  |  |  |  |  |
Operating lease liabilities, non- current |  |  | 92,360 |  |  |  |  |  |  |
Deferred tax liabilities |  |  | 13,833 |  |  |  |  |  |  |
Other liabilities |  |  | 39,378 |  |  |  |  |  |  |
Total identifiable net assets |  |  | (375,008) |  |  |  |  |  |  |
Goodwill |  |  | 448,023 |  |  |  |  |  |  |
Beijing 10, 11 and 12 | As previously reported |  |  |  |  |  |  |  |  |  |
The identifiable assets acquired and liabilities assumed in the business combination |  |  |  |  |  |  |  |  |  |
Fair value of consideration |  |  | 847,586 |  |  |  |  |  |  |
Contingent consideration |  |  | 130,720 |  |  |  |  |  |  |
Effective settlement of pre-existing relationships upon consolidation |  |  | 34,477 |  |  |  |  |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed: |  |  |  |  |  |  |  |  |  |
Cash |  |  | (2,349) |  |  |  |  |  |  |
Accounts receivable |  |  | (81,027) |  |  |  |  |  |  |
Property and equipment |  |  | (1,971,432) |  |  |  |  |  |  |
Operating lease ROU assets |  |  | (94,821) |  |  |  |  |  |  |
Identifiable intangible assets |  |  | (191,000) |  |  |  |  |  |  |
Other assets |  |  | (149,956) |  |  |  |  |  |  |
Accounts payable |  |  | 727,043 |  |  |  |  |  |  |
Finance lease and other financing obligations, current |  |  | 171,979 |  |  |  |  |  |  |
Operating lease liabilities, current |  |  | 6,092 |  |  |  |  |  |  |
Finance lease and other financing obligations, non-current |  |  | 1,062,114 |  |  |  |  |  |  |
Operating lease liabilities, non- current |  |  | 92,360 |  |  |  |  |  |  |
Deferred tax liabilities |  |  | 13,833 |  |  |  |  |  |  |
Other liabilities |  |  | 38,586 |  |  |  |  |  |  |
Total identifiable net assets |  |  | (378,578) |  |  |  |  |  |  |
Goodwill |  |  | 503,485 |  |  |  |  |  |  |
Beijing 10, 11 and 12 | Adjustments |  |  |  |  |  |  |  |  |  |
The identifiable assets acquired and liabilities assumed in the business combination |  |  |  |  |  |  |  |  |  |
Fair value of consideration |  |  | (59,032) |  |  |  |  |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed: |  |  |  |  |  |  |  |  |  |
Accounts receivable |  |  | (2,107) |  |  |  |  |  |  |
Property and equipment |  |  | (36,176) |  |  |  |  |  |  |
Other assets |  |  | 7,327 |  |  |  |  |  |  |
Accounts payable |  |  | 29,864 |  |  |  |  |  |  |
Finance lease and other financing obligations, current |  |  | 2,980 |  |  |  |  |  |  |
Operating lease liabilities, current |  |  | 890 |  |  |  |  |  |  |
Other liabilities |  |  | 792 |  |  |  |  |  |  |
Total identifiable net assets |  |  | 3,570 |  |  |  |  |  |  |
Goodwill |  |  | ¥ (55,462) |  |  |  |  |  |  |
Beijing 10, 11 and 12 | Other payables |  |  |  |  |  |  |  |  |  |
The identifiable assets acquired and liabilities assumed in the business combination |  |  |  |  |  |  |  |  |  |
Contingent consideration |  |  |  |  |  |  | 55,094 |  |  |
Shanghai 19 |  |  |  |  |  |  |  |  |  |
The identifiable assets acquired and liabilities assumed in the business combination |  |  |  |  |  |  |  |  |  |
Fair value of consideration |  | ¥ 62,480 |  |  |  |  |  |  |  |
Purchase price |  | 62,480 |  |  |  |  |  |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed: |  |  |  |  |  |  |  |  |  |
Cash |  | (2,001) |  |  |  |  |  |  |  |
Property and equipment |  | (372,093) |  |  |  |  |  |  |  |
Operating lease ROU assets |  | (215,230) |  |  |  |  |  |  |  |
Identifiable intangible assets |  | (56,100) |  |  |  |  |  |  |  |
Other assets |  | (18,354) |  |  |  |  |  |  |  |
Accounts payable |  | 360,381 |  |  |  |  |  |  |  |
Operating lease liabilities, current |  | 2,676 |  |  |  |  |  |  |  |
Operating lease liabilities, non- current |  | 186,532 |  |  |  |  |  |  |  |
Deferred tax liabilities |  | 16,322 |  |  |  |  |  |  |  |
Other liabilities |  | 69,122 |  |  |  |  |  |  |  |
Total identifiable net assets |  | (28,745) |  |  |  |  |  |  |  |
Goodwill |  | ¥ 33,735 |  |  |  |  |  |  |  |
Beijing 9 |  |  |  |  |  |  |  |  |  |
The identifiable assets acquired and liabilities assumed in the business combination |  |  |  |  |  |  |  |  |  |
Fair value of consideration | ¥ 793,043 |  |  |  |  |  |  |  |  |
Purchase price | 816,969 |  |  |  |  |  |  |  |  |
Contingent consideration | 463,496 |  |  |  |  |  |  |  |  |
Effective settlement of pre-existing relationships upon consolidation | (65,706) |  |  |  |  |  |  |  |  |
Recognized amounts of identifiable assets acquired and liabilities assumed: |  |  |  |  |  |  |  |  |  |
Cash | (451) |  |  |  |  |  |  |  |  |
Accounts receivable | (55,072) |  |  |  |  |  |  |  |  |
Property and equipment | (403,556) |  |  |  |  |  |  |  |  |
Operating lease ROU assets | (82,729) |  |  |  |  |  |  |  |  |
Identifiable intangible assets | (202,500) |  |  |  |  |  |  |  |  |
Other assets | (70,149) |  |  |  |  |  |  |  |  |
Accounts payable | 16,472 |  |  |  |  |  |  |  |  |
Finance lease and other financing obligations, current | 8,028 |  |  |  |  |  |  |  |  |
Operating lease liabilities, current | 6,568 |  |  |  |  |  |  |  |  |
Finance lease and other financing obligations, non-current | 117,002 |  |  |  |  |  |  |  |  |
Operating lease liabilities, non- current | 95,729 |  |  |  |  |  |  |  |  |
Deferred tax liabilities | 44,965 |  |  |  |  |  |  |  |  |
Other liabilities | 7,151 |  |  |  |  |  |  |  |  |
Total identifiable net assets | (518,542) |  |  |  |  |  |  |  |  |
Goodwill | 208,795 |  |  |  |  |  |  |  |  |
Beijing 9 | Other payables |  |  |  |  |  |  |  |  |  |
The identifiable assets acquired and liabilities assumed in the business combination |  |  |  |  |  |  |  |  |  |
Contingent consideration |  |  |  |  |  |  | ¥ 448,304 |  |  |
Beijing 9 | Consideration not Expected to be paid |  |  |  |  |  |  |  |  |  |
The identifiable assets acquired and liabilities assumed in the business combination |  |  |  |  |  |  |  |  |  |
Purchase price | 811,507 |  |  |  |  |  |  |  |  |
Contingent consideration | ¥ 5,462 |  |  |  |  |  |  |  |  |

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