Investments in Unconsolidated Affiliates (Tables)

9 Months Ended

Sep. 30, 2012

Investments in Unconsolidated Affiliates [Abstract]

Combined financial information of the unconsolidated affiliated companies

	As of September 30,
	2012
Assets:
Current assets	$	58,738
Noncurrent assets		161,150
Total assets	$	219,888
Liabilities:
Current liabilities	$	44,819
Noncurrent liabilities		88,957
Total liabilities	$	133,776

	Three Months Ended
	September 30, 2012			September 30, 2011
Results of operations:
Revenue	$	50,927		$	55,828
Net income	$	9,591		$	5,217
	Nine Months Ended
	September 30, 2012			September 30, 2011
Results of operations:
Revenue	$	105,575		$	124,770
Net loss	$	(4,036	)	$	(2,519	)

Summary of activity in income from unconsolidated affiliates

Income from unconsolidated affiliates
Income from unconsolidated affiliates	$	(244	)
Elimination of intercompany revenue		1,202
Income from unconsolidated affiliates	$	958