Indebtedness (Tables)

12 Months Ended

Dec. 31, 2011

Indebtedness

Schedule of long-term debt

	2011		2010
	(in thousands)
Principal amount unsecured 5.0% senior notes due in 2018	$	95,000		-
Principal amount unsecured 5.75% senior notes due in 2021		95,000		-
Principal amount unsecured 5.60% senior notes due in 2011		-		190,000
Discount on unsecured 5.60% senior notes due in 2011		-		(1)
Total	$	190,000		189,999