OPERATING LEASES AND COMMITMENTS (Details 2) (Commitment to acquire office building and service bay, USD $) In Millions, unless otherwise specified	Dec. 31, 2014
Commitment to acquire office building and service bay
Commitment
Amount of commitment	$ 11.8

Amount of contractual obligation maturing in the next fiscal year following the latest fiscal year.

No definition available.

Name:	us-gaap_ContractualObligationDueInNextTwelveMonths
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant