Acquisition (Details) (USD $)	3 Months Ended			12 Months Ended
	Sep. 30, 2013 Kenny [Member]	Jun. 30, 2013 Kenny [Member]	Dec. 31, 2012 Kenny [Member]	Dec. 31, 2012 Notes Payable to Banks [Member]
Business Acquisition [Line Items]
Purchase price			$ 141,114,000
Proceeds from Lines of Credit				70,000,000
Post closing adjustments paid	3,800,000	4,600,000
Business Combination, Indemnification Assets, Amount as of Acquisition Date	$ 13,000,000