Marketable Securities, Amortized Cost Basis

No definition available.

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- Definition

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
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-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563

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- Definition

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563

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- Definition

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

+ References

No definition available.

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- Definition

Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

+ References

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- Definition

Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

+ References

No definition available.

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- Definition

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

No definition available.

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- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109979856&loc=d3e26610-111562

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-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563

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- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=99377092&loc=SL75136599-209740

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- Definition

Cost of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Excludes equity method investment and investment in equity security without readily determinable fair value.

+ References

No definition available.

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- Definition

Amount of investment in marketable security.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.4)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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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.

+ References

No definition available.

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Securities (Available-for-sale Securities) (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 2,475,534,000
Amortized Cost, Equity Securities	17,086,000
Amortized Cost, Total	2,492,620,000
Gross Unrealized Gains	4,662,000
Gross Unrealized Losses	(46,573,000)
Estimated Fair Value	2,433,623,000
Estimated Fair Value, Equity Securities	17,086,000
Estimated Fair Value, Total	2,450,709,000	$ 2,216,753,000
Total investment securities	2,492,620,000	2,248,181,000
Gross Unrealized Gains		10,911,000
Gross Unrealized Losses		(42,339,000)
Securities available for sale		2,216,753,000
Debt securities
Debt Securities, Available-for-sale [Line Items]
Total investment securities		2,231,885,000
Gross Unrealized Gains		10,533,000
Gross Unrealized Losses		(42,339,000)
Securities available for sale		2,200,079,000
U.S. government corporations and agencies
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	32,075,000
Gross Unrealized Gains	3,000
Gross Unrealized Losses	(127,000)
Estimated Fair Value	31,951,000
Total investment securities		5,358,000
Gross Unrealized Gains		8,000
Gross Unrealized Losses		(38,000)
Securities available for sale		5,328,000
Mortgage and asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	2,061,358,000
Gross Unrealized Gains	3,740,000
Gross Unrealized Losses	(38,400,000)
Estimated Fair Value	2,026,698,000		$ 483,000
Total investment securities		1,785,467,000
Gross Unrealized Gains		5,856,000
Gross Unrealized Losses		(37,587,000)
Securities available for sale		1,753,736,000
Obligations of states and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	382,101,000
Gross Unrealized Gains	919,000
Gross Unrealized Losses	(8,046,000)
Estimated Fair Value	$ 374,974,000
Total investment securities		441,060,000
Gross Unrealized Gains		4,669,000
Gross Unrealized Losses		(4,714,000)
Securities available for sale		441,015,000
Equity securities
Debt Securities, Available-for-sale [Line Items]
Total investment securities		16,296,000
Gross Unrealized Gains		378,000
Gross Unrealized Losses		0
Securities available for sale		$ 16,674,000