Consolidated Statements of Comprehensive Income (Loss) (Parenthetical)	Dec. 31, 2017
Income Statement [Abstract]
Non-controlling interests in net loss (income) of subsidiary at 48.2%	48.20%

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

No definition available.

Name:	us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant