Long-Term Debt (Tables)

9 Months Ended

Sep. 30, 2012

Debt Disclosure [Abstract]

Schedule of Debt [Table Text Block]

The liability components of the company’s convertible debt consist of the following (in thousands):

	September 30, 2012			December 31, 2011
Principal amount of liability component	$	13,350		$	13,850
Unamortized discount	(3,489		)	(4,053		)
Net carrying amount of liability component	$	9,861		$	9,797

Schedule of Long-term Debt Instruments [Table Text Block]

Debt consists of the following (in thousands):

	September 30, 2012			December 31, 2011
$400,000,000 senior secured revolving credit facility, due in October 2015	$	234,000		$	247,063
Convertible senior subordinated debentures at 4.125%, due in February 2027	9,861			9,797
Other notes and lease obligations	7,327			8,624
	251,188			265,484
Less current maturities of long-term debt	(739		)	(5,044		)
	$	250,449		$	260,440