Prepaid land use rights (Details) - CNY (¥)
¥ in Thousands |
12 Months Ended |
|
Dec. 31, 2017 |
Dec. 31, 2016 |
| Debt Instrument [Line Items] |
|
|
| Land use rights, minimum lease term |
40 years
|
|
| Land use rights, maximum lease term |
50 years
|
|
| Cost |
¥ 615,121
|
¥ 600,904
|
| Less: accumulated amortization |
(76,977)
|
(64,541)
|
| Current portion of prepaid land use rights (recorded in other current assets) |
12,821
|
12,155
|
| Non-current portion of prepaid land use rights |
525,323
|
524,208
|
| Net |
538,144
|
¥ 536,363
|
| China Construction Bank | Long-term loan |
|
|
| Debt Instrument [Line Items] |
|
|
| Net book value of prepaid land use rights pledged as collateral |
24,328
|
|
| Bank loan secured by pledge of prepaid land use rights |
45,000
|
|
| Industrial and Commercial Bank of China | Long-term loan |
|
|
| Debt Instrument [Line Items] |
|
|
| Net book value of prepaid land use rights pledged as collateral |
69,043
|
|
| Bank loan secured by pledge of prepaid land use rights |
84,000
|
|
| China Everbright Bank | Short-term loans |
|
|
| Debt Instrument [Line Items] |
|
|
| Net book value of prepaid land use rights pledged as collateral |
7,929
|
|
| Bank loan secured by pledge of prepaid land use rights |
50,000
|
|
| China Everbright Bank | Long-term loan |
|
|
| Debt Instrument [Line Items] |
|
|
| Net book value of prepaid land use rights pledged as collateral |
200,315
|
|
| Bank loan secured by pledge of prepaid land use rights |
1,152,000
|
|
| Bank of Tianjin | Long-term loan |
|
|
| Debt Instrument [Line Items] |
|
|
| Net book value of prepaid land use rights pledged as collateral |
40,661
|
|
| Bank loan secured by pledge of prepaid land use rights |
150,000
|
|
| Bank of Jiangsu | Long-term loan |
|
|
| Debt Instrument [Line Items] |
|
|
| Net book value of prepaid land use rights pledged as collateral |
8,231
|
|
| Bank loan secured by pledge of prepaid land use rights |
35,000
|
|
| Shanghai Jinglong Solar Technology Co., Ltd. ("JA Jinglong") | Industrial and Commercial Bank of China | Short-term loans |
|
|
| Debt Instrument [Line Items] |
|
|
| Net book value of prepaid land use rights pledged as collateral |
69,043
|
|
| Bank loan secured by pledge of prepaid land use rights |
¥ 44,938
|
|