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Stock-Based Compensation Plans and Employee Benefits (Directors' Awards) (Details) - Directors $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($) $ / shares shares
CSE and Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested, outstanding (in shares)	244,360
Non-vested, aggregate intrinsic value | $	$ 3.5
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted (in shares)	65,936
Grant date fair value (in dollars per share) | $ / shares	$ 8.74
Vesting period	1 year
CSE
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted (in shares)	6,254
Grant date fair value (in dollars per share) | $ / shares	$ 10.90

X

- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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-Publisher FASB
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-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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