Income Taxes - Income Tax Reconciliation (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
Income Tax Reconciliation [Line Items]
Statutory tax expense (benefit)	$ 57,537		$ (839)		$ 43,332
Change in valuation allowance	(32,315)		(6,631)		11,173
Foreign tax rate differential	(11,001)		4,043		(8,473)
U.S. taxed foreign income	8,542		3,265		1,015
Subsidiary losses	0		189		(3,553)
Life insurance	(2,784)		(1,072)		(2,659)
Goodwill impairment	0		27,647		0
SEC charge	0		0		8,750
Out-of-period adjustments	0		0		8,765
Other	8,719	[1]	7,497	[1]	5,203	[1]
Taxes on income	12,815		14,561		44,477
Brazil
Income Tax Reconciliation [Line Items]
Brazil nontaxable incentive	(10,652)		(14,600)		(14,420)
Brazil tax goodwill amortization	$ (5,231)		$ (4,938)		$ (4,656)

[1] Other consists of state and local income taxes, net of federal benefit, nondeductible expenses, changes to uncertain tax position liabilities and other items, none of which are individually significant.