Long-Term Debt And Other Long-Term Liabilities (Tables)

12 Months Ended

Dec. 31, 2011

Long-Term Debt And Other Long-Term Liabilities [Abstract]

Long-Term Debt

	December 31, 2011		December 31, 2010
	(In thousands)
Credit agreement with average interest rates, of 2.7% and 3.5% at December 31, 2011 and 2010, respectively	$	50,000	$	163,000
6.625% senior subordinated notes due 2021		250,000		0
Total long-term debt	$	300,000	$	163,000

Other Long-Term Liabilities

	2011		2010
	(In thousands)
ARO liability	$	96,446	$	69,265
Workers' compensation		17,026		17,566
Separation benefit plans		6,845		5,690
Gas balancing liability		3,263		3,263
Deferred compensation plan		2,463		2,368
		126,043		98,152
Less current portion		12,213		10,122
Total other long-term liabilities	$	113,830	$	88,030