The Company and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2011

The Company and Summary of Significant Accounting Policies [Abstract]

Carrying amounts and classification of assets and liabilities

	December 31, 2011			December 31, 2010
Current assets		$	11,287		$	6,058
Noncurrent assets			132,925			107,723
Total assets		$	144,212		$	113,781
Current liabilities		$	65,608		$	36,364
Noncurrent liabilities			18,297			17,359
Total liabilities		$	83,905		$	53,723

Schedule of Intangible Assets and Goodwill

	2011			2010
Intellectual property	$	7,840		$	11,331
Goodwill		1,575			1,575
Other intangibles		0			840
Less accumulated amortization		(5,267	)		(6,379	)
Total Intangible Assets	$	4,148		$	7,367

Reconciliation of net earnings and weighted average common shares outstanding

	Years Ended December 31,
Basic earnings (loss) per share	2011		2010		2009
Net earnings (loss)	$	(67,484)	$	136,148	$	54,699
Weighted average common shares outstanding		48,491		47,433		46,341
Basic earnings (loss) per share	$	(1.39)	$	2.87	$	1.18

	Years Ended December 31,
Diluted earnings (loss) per share	2011		2010		2009
Net earnings (loss)	$	(67,484)	$	136,148	$	54,699
Weighted average common shares outstanding		48,491		47,433		46,341
Dilutive stock options		0		1,617		764
Weighted average common shares outstanding		48,491		49,050		47,105
Diluted earnings (loss) per share	$	(1.39)	$	2.78	$	1.16