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Fair Value Measurement (Methodologies Other Than Fair Value) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Financial assets:
BOLI	$ 57,213	$ 56,381
Other investments	79,133	86,057
Other assets	106,108	93,263
Financial liabilities:
Debt	350,000	250,000
Other liabilities	202,303	320,853
Not Measured At Fair Value [Member] | Carrying Value [Member]
Financial assets:
BOLI	57,213	56,381
Other investments	48,522	57,099
Other assets	24,215	22,440
Financial liabilities:
Other liabilities	14,897	14,656
Not Measured At Fair Value [Member] | Carrying Value [Member] | Senior notes due 2023 [Member]
Financial liabilities:
Debt	250,000	250,000
Not Measured At Fair Value [Member] | Carrying Value [Member] | Revolving Credit Facility [Member]
Financial liabilities:
Debt	100,000	0
Not Measured At Fair Value [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value [Member]
Financial assets:
BOLI	57,213	56,381
Other investments	51,646	57,994
Other assets	24,193	22,399
Financial liabilities:
Other liabilities	14,893	14,645
Not Measured At Fair Value [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value [Member] | Senior notes due 2023 [Member]
Financial liabilities:
Debt	261,308	276,503
Not Measured At Fair Value [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value [Member] | Revolving Credit Facility [Member]
Financial liabilities:
Debt	$ 100,000	$ 0

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This item represents the amount that could be realized under a life insurance contract or contracts owned by the Entity as of the date of the statement of financial position. Such Entity-owned life insurance policies are commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI).

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Topic 210
-SubTopic 10
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