Condensed Consolidating Financial Information Textuals (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2012	Mar. 31, 2011
Income tax (benefit) expense	$ (3,492)	$ 12,649
Equity income in consolidated subsidiaries	0	0
Gain on investment securities for sale	0	13,035
Net cash (used in) provided by operating activities	40,576	554
Purchase of investment securities	0	1,788
Proceeds from Sale and Maturity of Available-for-sale Securities	0	17,792
Investments in subsidiaries	0	0
Capital contributions received	0	0
Intercompany dividends paid	0	0
Parent/Issuer [Member]
Income tax (benefit) expense	(17,837)	(9,611)
Equity income in consolidated subsidiaries	24,618	33,980
Gain on investment securities for sale		0
Net cash (used in) provided by operating activities	(7,184)	10,006
Purchase of investment securities		0
Proceeds from Sale and Maturity of Available-for-sale Securities		0
Investments in subsidiaries	658	2,328
Capital contributions received	0	0
Intercompany dividends paid	0	0
Guarantor Subsidiaries [Member]
Income tax (benefit) expense	13,233	18,985
Equity income in consolidated subsidiaries	0	0
Gain on investment securities for sale		13,035
Net cash (used in) provided by operating activities	53,892	49,780
Purchase of investment securities		1,788
Proceeds from Sale and Maturity of Available-for-sale Securities		17,792
Investments in subsidiaries	0	0
Capital contributions received	600	2,288
Intercompany dividends paid	(6,000)	(47,592)
Reclassification [Member] \| Parent/Issuer [Member]
Income tax (benefit) expense		6,713
Equity income in consolidated subsidiaries		6,322
Gain on investment securities for sale		(13,035)
Net cash (used in) provided by operating activities		17,792
Purchase of investment securities		1,788
Proceeds from Sale and Maturity of Available-for-sale Securities		(17,792)
Investments in subsidiaries		(1,788)
Reclassification [Member] \| Guarantor Subsidiaries [Member]
Income tax (benefit) expense		(6,713)
Gain on investment securities for sale		13,035
Purchase of investment securities		(1,788)
Proceeds from Sale and Maturity of Available-for-sale Securities		17,792
Capital contributions received		1,788
Intercompany dividends paid		$ (17,792)

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

+ References+ Details

The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities. While for technical reasons this element has no balance attribute, the default assumption is a debit balance consistent with its label.

+ References+ Details

- Definition

The cash outflow to acquire debt and equity securities not classified as either held-to-maturity securities or trading securities which would be classified as available-for-sale securities and reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 17

-Subparagraph a

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef

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-Topic 320

-SubTopic 10

-Section 45

-Paragraph 11

-URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26853-111562

+ Details

- Definition

The cash inflow associated with the sale or maturity (principal being due) of securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 16

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef

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+ Details