Investments in Unconsolidated Affiliates (Tables)

12 Months Ended

Dec. 31, 2012

Investments in Unconsolidated Affiliates [Abstract]

Combined financial information of unconsolidated affiliated companies

Combined financial information of the unconsolidated affiliates companies accounted for by the equity method is as follows:

	As of December 31,
	2012
Assets:
Current assets	$	57,492
Noncurrent assets		161,280
Total assets	$	218,772
Liabilities:
Current liabilities	$	44,366
Noncurrent liabilities		86,658
Total liabilities	$	131,024
	Year Ended
	2012			2011
Results of operations:
Revenue	$	146,972		$	168,893
Net loss	$	(5,693	)	$	(1,102	)

Summary of activity in income from unconsolidated affiliates

A summary of activity in income from unconsolidated affiliates is as follows:

	Year Ended December 31,
Income from unconsolidated affiliates	2012			2011
Income from unconsolidated affiliates	$	(430	)	$	112
Elimination of intercompany revenue		1,634			1,685
Income from unconsolidated affiliates	$	1,204		$	1,797