Income Taxes Liability for Uncertain Tax Positions (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Contingency [Line Items]
Balance at beginning of year	$ 3,155,000	$ 0	$ 0
Increase for acquired subsidiary	0		0
Reductions for tax positions of prior years	0	(215,000)	0
Balance at end of year	3,155,000	3,155,000	0
RailAmerica [Member]
Income Tax Contingency [Line Items]
Increase for acquired subsidiary		$ 3,370,000