Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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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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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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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Stock Compensation (Restricted Stock Activity) (Details) - Restricted Stock $ in Thousands							1 Months Ended	12 Months Ended
	May 02, 2019 USD ($) director shares	May 29, 2018 USD ($) director shares	Apr. 01, 2016 director shares	Nov. 10, 2015 USD ($) shares	Oct. 10, 2015	Jul. 23, 2014 USD ($) shares	Oct. 31, 2013 USD ($) shares	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Apr. 30, 2016 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense								$ 21	$ 85	$ 85
Total compensation cost not yet recognized								$ 15,095	22,077
Total compensation cost not yet recognized, period for recognition								1 year 3 months 18 days
May 2, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other than options, grants in period (shares) \| shares	63,000
Share-based compensation expense								$ 124
Award vesting period	3 years
Total compensation cost not yet recognized	$ 564
April 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other than options, grants in period (shares) \| shares			60,775
Share-based compensation expense								92	374	351
Number of directors \| director			5
Award vesting period			3 years
Total compensation cost not yet recognized											$ 1,054
May 29, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other than options, grants in period (shares) \| shares		27,563
Share-based compensation expense								241	142
Award vesting period		2 years
Total compensation cost not yet recognized		$ 481
November 10, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other than options, grants in period (shares) \| shares				1,458,608
Performance period					7 years
Share-based compensation expense								4,053	4,053	$ 5,275
Total compensation cost not yet recognized				$ 28,374
July 23, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other than options, grants in period (shares) \| shares						1,340,096
Performance period					7 years
Share-based compensation expense								2,969
Total compensation cost not yet recognized						$ 20,780
October 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other than options, grants in period (shares) \| shares							36,853
Total compensation cost not yet recognized							$ 458
Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of directors \| director	6
Directors \| May 29, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other than options, grants in period (shares) \| shares		7,348
Share-based compensation expense								$ 46	$ 82
Number of directors \| director		2
Total compensation cost not yet recognized		$ 128