INCOME TAXES (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Income Tax Disclosure [Abstract]
Federal income tax at 35% of earnings from continuing operations before income taxes	$ 32,958	$ 31,459	$ 54,507	$ 102,551
Federal income tax rate percentage (as a percent)	35.00%	35.00%	35.00%	35.00%
State income taxes, net of federal income tax benefits	1,107	1,004	1,830	3,274
Canadian dividend tax, net of U.S. tax benefits	0	0	18,460	0
Effect of federal, state, and foreign tax on permanent items	1,397	1,039	2,243	3,271
Other	(906)	811	(100)	142
Total income tax	$ 34,556	$ 34,313	$ 76,940	$ 109,238

The portion of the difference, between total income tax expense or benefit as reported in the Income Statement for the year/accounting period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations, that is attributable to the effect of federal, state, and foreign tax on permanent items.

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The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

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The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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The portion of the difference, between total income tax expense or benefit as reported in the Income Statement for the year/accounting period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations, that is attributable to all other items not otherwise listed in the existing taxonomy.

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The portion of the difference, between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations, that is attributable to state and local income tax expense or benefit.

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