XML 145 R73.htm IDEA: XBRL DOCUMENT
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Notes Payable - Additional Information (Detail) ¥ in Thousands, $ in Thousands | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2016 CNY (¥) | Dec. 31, 2015 CNY (¥) | Dec. 31, 2014 CNY (¥) | Dec. 31, 2016 USD ($) | Dec. 31, 2016 CNY (¥) | Jun. 30, 2015 USD ($) Tranche | Jun. 09, 2014 USD ($) | Aug. 06, 2013 USD ($) | Nov. 28, 2012 USD ($) Tranche
Unsecured Senior Notes Due Two Thousand Seventeen |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt face amount |  |  |  |  |  |  |  |  | $ 750,000
Debt, maturity date | Nov. 28, 2017 |  |  |  |  |  |  |  |
Interest rate |  |  |  | 2.25% | 2.25% |  |  |  |
Effective interest rate |  |  |  | 2.36% | 2.36% |  |  |  |
Unsecured Senior Notes Due Two Thousand Twenty Two |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt face amount |  |  |  |  |  |  |  |  | $ 750,000
Debt, maturity date | Nov. 28, 2022 |  |  |  |  |  |  |  |
Interest rate |  |  |  | 3.50% | 3.50% |  |  |  |
Effective interest rate |  |  |  | 3.59% | 3.59% |  |  |  |
Unsecured Senior Notes Due Twenty Eighteen |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt face amount |  |  |  |  |  |  |  | $ 1,000,000 |
Debt, maturity date | Aug. 06, 2018 |  |  |  |  |  |  |  |
Interest rate |  |  |  | 3.25% | 3.25% |  |  |  |
Effective interest rate |  |  |  | 3.39% | 3.39% |  |  |  |
Unsecured Senior Notes Due Twenty Nineteen |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt face amount |  |  |  |  |  |  | $ 1,000,000 |  |
Debt, maturity date | Jun. 09, 2019 |  |  |  |  |  |  |  |
Interest rate |  |  |  | 2.75% | 2.75% |  |  |  |
Effective interest rate |  |  |  | 3.00% | 3.00% |  |  |  |
Unsecured Senior Notes Due Two Thousand Twenty |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt face amount |  |  |  |  |  | $ 750,000 |  |  |
Debt, maturity date | Jun. 30, 2020 |  |  |  |  |  |  |  |
Interest rate |  |  |  | 3.00% | 3.00% |  |  |  |
Effective interest rate |  |  |  | 3.13% | 3.13% |  |  |  |
Unsecured Senior Notes Due Two Thousand Twenty Five |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt face amount |  |  |  |  |  | $ 500,000 |  |  |
Debt, maturity date | Jun. 30, 2025 |  |  |  |  |  |  |  |
Interest rate |  |  |  | 4.13% | 4.13% |  |  |  |
Effective interest rate |  |  |  | 4.22% | 4.22% |  |  |  |
Unsecured Senior Notes |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Number of tranches issued and sold | Tranche |  |  |  |  |  | 2 |  |  | 2
Net proceeds from issuance of debt | ¥ | ¥ 0 | ¥ 7,750,000 | ¥ 6,190,000 |  |  |  |  |  |
Discount on debt issued |  |  |  | $ 10,710 | ¥ 74,360 |  |  |  |
Debt issuance cost |  |  |  | $ 21,550 | ¥ 149,590 |  |  |  |

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