Basis of Presentation Basis of Presentation (Details) (KWE [Member], USD $)	3 Months Ended
	Mar. 31, 2014
KWE [Member]
Noncontrolling Interest [Line Items]
Proceeds from Issuance Initial Public Offering	$ 1,700,000,000
Ordinary Shares, Initial Public Offering Share Subscription, Cash	145,200,000
Ordinary Shares, Initial Public Offering Share Subscription, Contribution of Assets	$ 58,300,000
Ownership percentage by parent	12.20%