Consolidation of Southern Trust Mortgage (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended
	May 30, 2008 membership_unit	Dec. 31, 2013	May 31, 2008
Business Acquisition [Line Items]
Percentage interest in issued and outstanding membership interest		62.30%
Southern Trust Mortgage [Member]
Business Acquisition [Line Items]
Number of membership units acquired	1
Cost to acquire membership interest	$ 1.6
Percentage ownership interest, minimum			50.00%
Percentage interest in issued and outstanding membership interest		62.30%