Available For Sale Securities In Unrealized Loss Positions.

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- Definition

Business Owned Life Insurance Cost.

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No definition available.

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- Definition

Debt Securities, Number of Issuers

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No definition available.

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- Definition

Historic Tax Credits Investments and Other Tax Benefits, Amount

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No definition available.

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- Definition

Income (Loss) from Historical Projects, Equity Method Investments

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- Definition

Number of debt securities in unrealized loss position as percentage of total debt securities.

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No definition available.

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- Definition

Number of Investment Affiliates Exceeding Shareholder's Equity Ten Percent Threshold Limit

+ References

No definition available.

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- Definition

Number of Tax Credit Partnerships Almost 100% Ownership Percentage

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No definition available.

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- Definition

Number of LPs / LLCs with Equity Method Investment Ownership Percentage Over 25 percent

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No definition available.

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- Definition

Period For Federal Home Loan Bank Stock Liquidation Process

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No definition available.

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- Definition

Second greatest unrealized loss position.

+ References

No definition available.

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- Definition

Single greatest unrealized loss position.

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No definition available.

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- Definition

Threshold limit of investments based on shareholders equity.

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No definition available.

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- Definition

Amount of affordable housing tax credits and other tax benefits recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 740
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=64813897&loc=SL49122993-202985

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- Definition

Fair value of investments in certain entities that calculate net asset value per share, including, but not limited to, by unit, membership interest, or other ownership interest. Investments include, but are not limited to, investments in certain hedge funds, venture capital funds, private equity funds, real estate partnerships or funds.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 6A
-Subparagraph (a)
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- Definition

Carrying amount of cash and investment securities on deposit with state regulatory authorities in connection with capital requirements.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 320
-Section 50
-Paragraph 1
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- Definition

The fair value of available-for-sale securities that serve as collateral for borrowings.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5086-111524

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- Definition

Number of investment positions in available-for-sale investments in a continuous unrealized loss position for which an other-than-temporary impairment (OTTI) has not been recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (b)(3)
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- Definition

The carrying amount of the asset transferred to a third party to serve as a deposit, which typically serves as security against failure by the transferor to perform under terms of an agreement.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.8,17)
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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
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- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 45
-Paragraph 1
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
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- Definition

Amount of investment income (loss) of qualified affordable housing project investments accounted for using the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 740
-Section 50
-Paragraph 2
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=64813897&loc=SL49122993-202985

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- Definition

The cumulative amount of credit losses recognized in earnings related to debt securities held for which a portion of an other than temporary impairment (OTTI) was recognized in other comprehensive income (a component of shareholders' equity).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 8B
-Subparagraph (a)
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-SubTopic 10
-Section 50
-Paragraph 8B
-Subparagraph (g)
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- Definition

Amount before tax of other than temporary impairment loss (OTTI) on investments in available-for-sale and held-to-maturity debt securities, recognized in other comprehensive loss and attributable to parent entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 35
-Paragraph 35
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-Name Accounting Standards Codification
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-SubTopic 10
-Section 45
-Paragraph 10A
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669646-108580

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- Definition

The amount of other than temporary impairment (OTTI) losses on equity securities, OTTI related to credit losses on debt securities, and OTTI losses on debt securities when the entity intends to sell the securities or it is more likely than not that the entity will be required to sell the securities before recovery of its amortized cost basis. Additionally, this item includes OTTI losses recognized during the period on investments accounted for under the cost method of accounting.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 8B
-URI http://asc.fasb.org/extlink&oid=73527792&loc=SL6284393-111563

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Investments (Narrative) (Details) $ in Thousands	3 Months Ended
Investments (Narrative) (Details) $ in Thousands	Mar. 31, 2017 USD ($) Affiliate Business Issuer investment_interest Security	Mar. 31, 2016 USD ($) Issuer	Dec. 31, 2016 USD ($) Issuer Security	Dec. 31, 2015 USD ($)
Schedule of Available-for-sale Securities [Line Items]
Number of investment affiliates exceeding shareholder's equity ten percent threshold limit \| Affiliate	0
Threshold limit of investments based on shareholders' equity	10.00%
Securities on deposit with state insurance departments	$ 46,400
Business owned life insurance cost	33,000
Investment in unconsolidated subsidiaries	330,479		$ 340,906
Investments in LPs/LLCs fair value	$ 199,696		204,719
Number of LPs / LLCs with investment ownership percent over 25% \| Business	3
Equity in earnings, losses from affordable housing projects	$ (3,300)	$ (5,200)
Affordable housing tax credits	4,600	4,600
Losses from historic tax credit investments	(400)	(200)
Tax credits recognized related to historic tax credit investments	1,800	2,600
Net impairment losses recognized in earnings	171	9,666
Portion of noncredit OTTI losses recognized in OCI	248	1,068
Credit-related other-than-temporary impairment recognized in earnings	$ 1,329	6,559	1,158	$ 5,751
Tax Credit Partnerships Almost 100% Ownership [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of tax credit partnerships almost 100% ownership percentage \| investment_interest	2
Investment in unconsolidated subsidiaries	$ 38,300		40,200
Tax Credit Partnerships Less Than 20% Ownership [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment in unconsolidated subsidiaries	60,700		62,100
Other Limited Partnerships and Limited Liability Company, Not Considered Investment Funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment in unconsolidated subsidiaries	$ 20,700		22,400
Other Limited Partnerships and Limited Liability Company, Greater Than 25% Ownership [Member]
Schedule of Available-for-sale Securities [Line Items]
Equity method investment ownership percentage	25.00%
Investment in unconsolidated subsidiaries	$ 20,800		18,500
Other Limited Partnerships and Limited Liability Company Less than 25% Ownership [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment in unconsolidated subsidiaries	$ 199,600		$ 208,600
Maximum [Member]
Schedule of Available-for-sale Securities [Line Items]
Period for federal home loan bank stock liquidation process	5 years
Maximum [Member] \| Tax Credit Partnerships Almost 100% Ownership [Member]
Schedule of Available-for-sale Securities [Line Items]
Equity method investment ownership percentage	100.00%
Maximum [Member] \| Tax Credit Partnerships Less Than 20% Ownership [Member]
Schedule of Available-for-sale Securities [Line Items]
Equity method investment ownership percentage	20.00%
Fixed maturities [Member]
Schedule of Available-for-sale Securities [Line Items]
Required FAL Deposit	$ 96,700
Short-term investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Required FAL Deposit	$ 1,000
Non Government-Backed [Member]
Schedule of Available-for-sale Securities [Line Items]
Number of debt securities in unrealized loss position \| Security	587		703
Debt securities in unrealized loss position as percentage of total debt securities held	23.20%		27.20%
Number of issuers in unrealized loss position \| Issuer	397		456
Single greatest unrealized loss position	$ 500		$ 500
Second greatest unrealized loss position	400		500
Corporate debt [Member]
Schedule of Available-for-sale Securities [Line Items]
Portion of noncredit OTTI losses recognized in OCI	248	$ 1,068
Credit-related other-than-temporary impairment recognized in earnings			$ 5,500
Debt securities, number of issuers \| Issuer		10
Corporate bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Net impairment losses recognized in earnings		$ 6,500
Portion of noncredit OTTI losses recognized in OCI		900
Other investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Net impairment losses recognized in earnings		$ 3,100
Revolving Credit Facility [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities pledged as collateral	$ 246,500