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PREPAID LAND LEASE PAYMENTS | 12 Months Ended
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Dec. 31, 2018
Leases [Abstract] |
PREPAID LAND LEASE PAYMENTS |
| 11. | PREPAID LAND LEASE PAYMENTS
|  | As at December 31, |
|  | 2017 |  |  | 2018 |  |  | 2018 |
|  | RMB |  |  | RMB |  |  | US$ |
Prepaid land lease payments |  |  | 456,823 |  |  |  | 456,823 |  |  |  | 66,442 |
Less: accumulated amortization |  |  | (8,890 | ) |  |  | (18,500 | ) |  |  | (2,691 | )
Net carrying value |  |  | 447,933 |  |  |  | 438,323 |  |  |  | 63,751 |
Amortization expenses for the years ended December 31, 2016, 2017 and 2018 were RMB1,195, RMB5,256 and RMB9,610 (US$ 1,398 ), respectively. As at December 31, 2017 and 2018, certain of the Group's prepaid land lease payments with a total net book value of RMB48,273 and RMB425,743 (US$ 61,922 ) were pledged to secure bank and other borrowings of RMB280,459 and RMB 501,789 (US$ 72,982 ), respectively (note 17) and mandatorily redeemable noncontrolling interest of RMB396,281 and RMB434,216 (US$63,154) (note 1), respectively. The estimated annual amortization expenses for the prepaid land leases for each of the five succeeding years are as follows:
|  |  | Amortization |
|  |  | RMB |  |  | US$ |
2019 |  |  |  | 9,462 |  |  |  | 1,376 |
2020 |  |  |  | 9,462 |  |  |  | 1,376 |
2021 |  |  |  | 9,462 |  |  |  | 1,376 |
2022 |  |  |  | 9,462 |  |  |  | 1,376 |
2023 |  |  |  | 9,462 |  |  |  | 1,376 |

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- Definition The entire disclosure for lessee entity's leasing arrangements including, but not limited to, all of the following: (a.) The basis on which contingent rental payments are determined, (b.) The existence and terms of renewal or purchase options and escalation clauses, (c.) Restrictions imposed by lease agreements, such as those concerning dividends, additional debt, and further leasing. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=77888251 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -URI http://asc.fasb.org/topic&trid=2208923 + Details
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