Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2011

Quarterly Financial Data [Abstract]

Quarterly Financial Data

	Quarters Ended
	December 31			September 30			June 30			March 31
2011
Operating revenues	$	19,820		$	26,745		$	25,284		$	73,436
Operating profit (loss)		(383,863	)		(4,198	)		(20,576	)		21,330
Net income (loss) attributable to the Company		(328,611	)		(2,431	)		(13,336	)		14,099
Basic income (loss) per share attributable to the Company		(3.56	)		(0.03	)		(0.14	)		0.15
Diluted income (loss) per share attributable to the Company		(3.56	)		(0.03	)		(0.14	)		0.15
2010
Operating revenues	$	37,100		$	27,105		$	22,035		$	13,300
Operating (loss)		(1,274	)		(17,951	)		(15,239	)		(17,090	)
Net income (loss) attributable to the Company		(2,713	)		(13,116	)		(8,622	)		(11,413	)
Basic (loss) per share attributable to the Company		(0.03	)		(0.14	)		(0.09	)		(0.13	)
Diluted (loss) per share attributable to the Company		(0.03	)		(0.14	)		(0.09	)		(0.13	)

Quarterly Financial Information Pre-Tax Charges

	Quarters Ended
	December 31		September 30		June 30		March 31
2011
Impairment losses	$	374,846	$	—	$	1,697	$	782
Restructuring charge		797		348		5,926		4,476
2010
Impairment losses	$	8,067	$	—	$	502	$	53
Restructuring charge		899		1,654		1,158		1,540