Supplemental Cash Flow Information (Tables)

9 Months Ended

Sep. 30, 2011

Supplemental Cash Flow Information [Abstract]

Schedule of Supplemental Cash Flow Disclosures

	Nine Months Ended September 30,
	2011		2010
	(in thousands)
Cash paid for interest	$	183,728	$	160,741
Cash paid for income taxes	4,113		2,359