Available For Sale Investments (Tables)

3 Months Ended

Mar. 31, 2013

Investments, Debt and Equity Securities [Abstract]

Available for Sale Investments

The following table presents changes in available for sale investments in the first three months of 2013 and the full year 2012:

	As of March 31, 2013				As of December 31, 2012
	TGM				TGM
	Fair Value			Shares	Fair Value			Shares
Balance at beginning of period	$	15,034		24,521,101	$	1,416		2,000,000
Acquisitions	—			—	17,117			23,676,301
Dispositions	—			—	(805		)	(1,155,200	)
OCI - unrealized loss	(5,618		)		(2,694		)
Balance at end of period	$	9,416		24,521,101	$	15,034		24,521,101