Annual report pursuant to Section 13 and 15(d)

Non-Controlling Interest (Details)

v2.4.1.9
Non-Controlling Interest (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Noncontrolling Interest [Line Items]  
Noncontrolling Interest, Ownership Percentage by Parent 60.00%us-gaap_MinorityInterestOwnershipPercentageByParent
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners 40.00%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Non-controlling Interest [Member]  
Noncontrolling Interest [Line Items]  
Payments to Acquire Interest in Joint Venture $ 8,000,000us-gaap_PaymentsToAcquireInterestInJointVenture
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_NoncontrollingInterestMember
Parent [Member]  
Noncontrolling Interest [Line Items]  
Payments to Acquire Interest in Joint Venture $ 12,000,000us-gaap_PaymentsToAcquireInterestInJointVenture
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_ParentMember