Common Equity Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets

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Common Equity Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets

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Stock Repurchase Program Percentage Of Outstanding Shares Authorized For Repurchase

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Tax Cuts And Jobs Act Of 2017, Reclassification From Aoci To Retained Earnings

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Tax Cuts and Jobs Act, Reclassification from AOCI to Retained Earnings, Tax Effect

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- Definition

The minimum Total risk based capital ratio (total capital divided by risk weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The Total risk based capital ratio (total capital divided by risk weighted assets) required to be categorized as "well capitalized", in the regulatory framework for prompt corrective action.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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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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The cash inflow from the additional capital contribution to the entity.

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The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

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No definition available.

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Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

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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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- Definition

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

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No definition available.

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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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The minimum amount of Tier 1 Leverage Capital for capital adequacy purposes divided by average assets as defined in the regulations.

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The amount of Tier 1 Leverage Capital required to be categorized as well capitalized divided by average assets as defined in the regulatory framework for prompt corrective action.

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The minimum Tier One Capital Ratio (Tier one capital divided by risk-weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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The Tier 1 capital ratio (Tier 1 capital divided by risk weighted assets) required to be categorized as "well capitalized" under the regulatory framework for prompt corrective action.

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

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

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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		3 Months Ended	12 Months Ended
	Dec. 16, 2016	Dec. 31, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	May 24, 2018
Equity, Class of Treasury Stock [Line Items]
Proceeds from issuance of common stock	$ 259,000				$ 259,299
Treasury stock shares		900,000	900,000	1,200,000
Treasury stock, Cost basis		$ 18,500	$ 18,500	$ 25,500
Tax computed at statutory rate			21.00%	35.00%	35.00%
Minimum risk-based capital ratio		8.00%	8.00%	8.00%
Minimum Tier 1 capital ratio		6.00%	6.00%	6.00%
Minimum Tier 1 leverage capital ratio		4.00%	4.00%	4.00%
Minimum Tier 1 common equity		4.50%	4.50%	4.50%
Well capitalized total risk based capital ratio		10.00%	10.00%	10.00%
Well capitalized Tier 1 risk-based capital ratio		8.00%	8.00%	8.00%
Well capitalized Tier 1 leverage capital ratio		5.00%	5.00%	5.00%
Well capitalized Tier 1 common equity		6.50%	6.50%	6.50%
Impact of re-measurement of deferred tax assets
Reclassification from AOCI to retained earnings			$ 25,300
Restricted Stock [Member]
Equity, Class of Treasury Stock [Line Items]
Number of shares nonvested		1,300,000	1,300,000	1,500,000
2018 Stock Buyback Program [Member]
Equity, Class of Treasury Stock [Line Items]
Shares authorized for repurchase						5.00%
Number of shares authorized for repurchase						4,300,000
Shares repurchased		200,000
Shares repurchased price per share		$ 41.30
Common Stock [Member]
Equity, Class of Treasury Stock [Line Items]
Shares sold, price per share	$ 41.00
Shares sold	6,300,000
Impact of re-measurement of deferred tax assets
Bank Holding Companies and Banks that Meet Certain Criteria [Member]
Equity, Class of Treasury Stock [Line Items]
Minimum Tier 1 leverage capital ratio		3.00%	3.00%