Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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- Definition

Amount of assets pledged to secure a debt instrument.

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- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

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Face (par) amount of debt instrument at time of issuance.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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The amount of financial covenants in respect of short-term borrowings.

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No definition available.

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The withdrawn amount of debt.

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No definition available.

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The outstanding balance of short-term borrowings for calculation of weighted average interest rate.

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Short term loans (Details) ¥ in Thousands, $ in Thousands	12 Months Ended
Short term loans (Details) ¥ in Thousands, $ in Thousands	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2017 CNY (¥)	Dec. 31, 2018 CNY (¥)	Dec. 31, 2017 CNY (¥)
Short term loans
Total short term loans	$ 195,355			¥ 1,343,160	¥ 907,310
Weighted average interest rate for the outstanding borrowings	3.99%	3.84%		3.99%	3.84%
Financial covenants in respect of short-term borrowings				¥ 0	¥ 0
RMB denominated
Short term loans
Total short term loans				1,000,000	580,600
RMB denominated \| Short term bank facility agreement with Industrial Bank
Short term loans
Maximum credit facility					179,000
Basis spread (as a percent)		3.25%	3.25%
RMB denominated \| Short term bank facility agreement with Industrial Bank \| 3 Month People's Bank of China's Deposit Benchmarking Rate, 3 Month
Short term loans
Reference rate		3-month People's Bank of China's Deposit Benchmarking Rate plus 3.25%	3-month People's Bank of China's Deposit Benchmarking Rate plus 3.25%
RMB denominated \| Short term loan agreement with the Industrial Bank
Short term loans
Total short term loans					172,000
Amount of loan pledged by assets					¥ 200,000
Interest rate (as a percent)		4.35%			4.35%
RMB denominated \| Loan agreement with Shanghai Bank
Short term loans
Total short term loans					¥ 29,600
Amount of loan pledged by assets					¥ 30,000
Interest rate (as a percent)		5.75%			5.75%
RMB denominated \| Revolving credit facility agreement with China Merchants Bank
Short term loans
Total short term loans					¥ 200,000
Maximum credit facility					1,200,000
Principal amount				1,000,000
Drawn down from debt			¥ 200,000
Amount of loan pledged by assets					¥ 207,700
Interest rate (as a percent)		4.35%			4.35%
RMB denominated \| Uncollateralized short term loan
Short term loans
Basis spread (as a percent)	9.89%
Principal amount				200,000
RMB denominated \| Uncollateralized short term loan \| 6-month to 12-Month People's Bank of China's Deposit Benchmarking Rate
Short term loans
Reference rate	6-month to 12-month People's Bank of China's Deposit Benchmarking minus 9.89%
RMB denominated \| Revolving credit facility agreement with China Merchants Bank, One
Short term loans
Principal amount				200,000
Amount of loan pledged by assets				¥ 200,000
Interest rate (as a percent)	4.35%			4.35%
RMB denominated \| Revolving credit facility agreement with China Merchants Bank, Two
Short term loans
Principal amount				¥ 200,000
Amount of loan pledged by assets				¥ 200,000
Interest rate (as a percent)	4.29%			4.29%
RMB denominated \| Revolving credit facility agreement with China Merchants Bank, Three
Short term loans
Principal amount				¥ 400,000
Amount of loan pledged by assets				¥ 400,000
Interest rate (as a percent)	3.96%			3.96%
RMB denominated \| Short-term bank facility agreement with PRC bank
Short term loans
Maximum credit facility				¥ 250,000
U.S. dollar denominated
Short term loans
Total short term loans				343,160	¥ 326,710
U.S. dollar denominated \| Short-term bank facility agreement with an overseas bank
Short term loans
Maximum credit facility		$ 100,000			650,630
Drawn down from debt		$ 50,000	¥ 326,710
Amount of loan pledged by assets					¥ 35,412
U.S. dollar denominated \| Short-term bank facility agreement with an overseas bank \| 3 month LIBOR
Short term loans
Reference rate		3-month London Inter-Bank Offered Rate plus 1.05%	3-month London Inter-Bank Offered Rate plus 1.05%
Basis spread (as a percent)		1.05%	1.05%
U.S. dollar denominated \| Short term loan agreement with China Merchants Bank
Short term loans
Principal amount	$ 50,000			343,160
Amount of loan pledged by assets	$ 200,000			¥ 1,400,000
U.S. dollar denominated \| Short term loan agreement with China Merchants Bank \| 6-month People's Bank of China's Deposit Benchmarking Rate
Short term loans
Reference rate	6-month London Inter-Bank Offered Rate plus 0.45%
Basis spread (as a percent)	0.45%