Percentage of shares repurchased among authorized.

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- Definition

Regulatory capital modified transition amount percentage.

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No definition available.

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- Definition

Regulatory capital transition percentage.

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No definition available.

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- Definition

Number of shares of equity interests issued or issuable to acquire entity.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)(4)
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- Definition

Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

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No definition available.

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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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- Definition

The cash outflow to reacquire common stock during the period.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
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- Definition

The net cash inflow or outflow resulting from the entity's share transaction.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04(a))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)-(ii)
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- Definition

Amount of stock repurchase plan authorized.

+ References

No definition available.

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- Definition

Expiration date for the purchase of an entity's own shares under a stock repurchase plan, in the CCYY-MM-DD format.

+ References

No definition available.

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- Definition

The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

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- Definition

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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- Definition

Total cost of shares repurchased divided by the total number of shares repurchased.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 505
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-Section 45
-Paragraph 1
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- Definition

Cost basis for treasury stock acquired for purposes other than retirement.

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- Definition

Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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Stockholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands						1 Months Ended	3 Months Ended
	Mar. 20, 2020	Oct. 21, 2019	Sep. 23, 2019	Sep. 21, 2019	Sep. 20, 2019	Jan. 31, 2020	Mar. 31, 2020	Mar. 27, 2020	Dec. 31, 2019	Oct. 18, 2019
Equity, Class of Treasury Stock [Line Items]
Treasury stock shares							5,300,000		4,000,000.0
Treasury stock, Cost basis							$ 180,900		$ 135,800
Payments for repurchase of common stock							$ 12,716
Implementation CECL [Member]
Equity, Class of Treasury Stock [Line Items]
Regulatory capital modified transition amount percentage								25.00%
Implementation CECL [Member] \| Regulatory Capital Transition For First Two Years [Member]
Equity, Class of Treasury Stock [Line Items]
Regulatory capital transition percentage								0.00%
Implementation CECL [Member] \| Regulatory Capital Three Year Transition, Year 2022 [Member]
Equity, Class of Treasury Stock [Line Items]
Regulatory capital transition percentage								25.00%
Implementation CECL [Member] \| Regulatory Capital Three Year Transition, Year 2023 [Member]
Equity, Class of Treasury Stock [Line Items]
Regulatory capital transition percentage								50.00%
Implementation CECL [Member] \| Regulatory Capital Three Year Transition, Year 2024 [Member]
Equity, Class of Treasury Stock [Line Items]
Regulatory capital transition percentage								75.00%
Implementation CECL [Member] \| Regulatory Capital Three Year Transition, Year 2024 and Thereafter [Member]
Equity, Class of Treasury Stock [Line Items]
Regulatory capital transition percentage								100.00%
Accelerated Share Repurchase Agreement \| Common Stock [Member]
Equity, Class of Treasury Stock [Line Items]
Number of shares authorized for repurchase							5,500,000
Share repurchase, authorized amount										$ 185,000
Payments for repurchase of common stock		$ 185,000
Shares repurchased	1,000,000.0	3,611,870				315,851	4,900,000
Percentage of shares repurchased among authorized		75.00%
Proceeds from repurchase of common stock	$ 12,100
Shares purchased price per share						$ 40.26	$ 37.65
2018 Stock Buyback Program [Member]
Equity, Class of Treasury Stock [Line Items]
Number of shares authorized for repurchase			5,500,000
Stock repurchase expiration date			Dec. 31, 2020
MidSouth [Member]
Equity, Class of Treasury Stock [Line Items]
Shares issued				5,000,000.0	5,000,000.0
Business combination, price per share					$ 38.42
Restricted Stock [Member]
Equity, Class of Treasury Stock [Line Items]
Number of shares nonvested							1,400,000		1,400,000