Other Assets (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014		Dec. 31, 2013
Other Assets [Abstract]
Goodwill	$ 23.9		$ 23.9
Loan fees, net of accumulated amortization of $6.2 million and $4.5 million at June 30, 2014 and December 31, 2013, respectively	23.7		14.1
Deposits and other, net of accumulated amortization of $1.9 million and $1.2 million at June 30, 2014 and December 31, 2013, respectively	29.3		13.0
Marketable securities	11.0	[1]	4.0	[1]
Prepaid expenses	10.6		7.6
Other Assets	187.7		73.0
Accumulated amortization, loan fees	6.2		4.5
Accumulated amortization, deposits and other	1.9		1.2
Investments in KWE			0
KWE [Member]
Other Assets [Abstract]
Shares in KWE	13.2
KWE [Member] | Marketable Securities [Member]
Other Assets [Abstract]
Investments in KWE	248.5
Furniture and Fixtures [Member]
Other Assets [Abstract]
Office furniture and equipment net of accumulated depreciation of $2.8 million and $2.2 million at June 30, 2014 and December 31, 2013, respectively	9.7		10.4
Accumulated amortization, office furniture and equipment	2.8		2.2
Above Market Leases [Member]
Other Assets [Abstract]
Above-market leases	79.5		0
Accumulated amortization, above-market leases	$ 1.2

[1] The amount above excludes the Company's 13.2 million shares in KWE as the investment is eliminated due to the consolidation of KWE's results. Based on the June 30, 2014 share price the Company's investment in KWE is $248.5 million.