Footnote to Industry Segments (Tables) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Footnote to Industry Segments Table, Corporate Overhead
General and administrative expense	$ 8,282	$ 9,083	$ 18,650	$ 17,769
Depreciation and amortization	729	727	1,414	1,503
Interest expense	4,140	4,303	8,494	8,279
Other general corporate (income) expense, net	14,325	(1,009)	14,559	(949)
Total	$ 27,476	$ 13,104	$ 43,117	$ 26,602