Investments (Tables)

9 Months Ended

Sep. 30, 2012

Investments.

Schedule of investments

Nine Months Ended September 30, 2012 (in thousands)	WOLF			WMES		Total
Investment in joint ventures as of December 31, 2011	$	9,863		$	5,376	$	15,239
Investment	—			3,830		3,830
Earnings from joint ventures	733			215		948
Distribution	(477		)	—		(477		)
Investment in joint ventures as of September 30, 2012	$	10,119		$	9,421	$	19,540