SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	$ 29,856		$ 37,349		$ 31,298
Acquired by Purchase or Merger	73		0		0
Charged to Cost and Expense	6,442	[1]	(847)	[1]	12,894	[1]
Additions	0		0
Accounts Written Off	(10,048)		(6,001)		(8,828)
Reductions	0		0		0
Other	(1,336)		(645)		1,985
Balance at End of Year	24,987		29,856		37,349
Valuation Allowance of Deferred Tax Assets [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	38,136		43,171		55,486
Acquired by Purchase or Merger	0		0		0
Additions	0		0		2,875
Reductions	(15,412)		(5,035)		(15,190)
Other	0		0		0
Balance at End of Year	22,724		38,136		43,171
LIFO Reserve [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	45,742		44,195		52,312
Acquired by Purchase or Merger	0		0		0
Charged to Cost and Expense	9,603		1,547		0
Additions	0		0		0
Accounts Written Off	0		0		0
Reductions	0		0		(8,117)
Other	0		0
Balance at End of Year	$ 55,345		$ 45,742		$ 44,195

[1] Net of recoveries on previously reserved or written-off balances.