Basis of Consolidation Policy Additional Information (Details)	6 Months Ended
	Jun. 30, 2015
Maximum [Member]
Basis of Consolidation [Abstract]
Ownership Interest To Use Equity Method	50.00%
Ownership Interest To Use Cost Method	20.00%
Minimum [Member]
Basis of Consolidation [Abstract]
Ownership Interest to be Held for Consolidation	50.00%
Noncontrolling Interest [Abstract]
Ownership Interest to be Held for Consolidation - Noncontrolling Interests	50.00%