Deposit payables - Jewelry park - Additional Information (Detail) - 1 months ended Aug. 31, 2015 - Kingold Jewelry Park $ in Millions	USD ($) m²	CNY (¥) m²	ft²
Debt Instrument [Line Items]
Sale Price Of Real Estate Property Per Square Meter		¥ 6,000
Area of Real Estate Property	40,247.93	40,247.93	433,000
Proceeds from Deposits on Real Estate Sales	$ 22.7	¥ 144,000,000

Cash inflow related to amounts received in advance from a potential buyer showing or confirming an intention to complete an acquisition of land, buildings, other structures, or any item classified as real estate.

No definition available.

Name:	us-gaap_ProceedsFromDepositsOnRealEstateSales
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration