Shareholders' Equity and Share Based Payment Shareholders' Equity and Share Based Payment (Details Textual) (Details) - USD ($) $ / shares in Units, $ in Thousands	2 Months Ended
Feb. 29, 2020	Feb. 28, 2019	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares Repurchased from Employees and Directors	73,903
Cost of Shares Repurchased from Employees and Directors	$ 2,369
Non-cash share-based payment expense	10,678	$ 1,602
Stock Repurchased During Period, Value	$ 2,370	$ 11,424
Common Stock, Shares Authorized	250,000,000		250,000,000
Common Stock, Par or Stated Value Per Share	$ 0.01		$ 0.01
Preferred Stock, Shares Authorized	50,000,000		50,000,000
Preferred Stock, Par or Stated Value Per Share	$ 0.01		$ 0.01
Common Stock, Value, Issued	$ 751		$ 751
Common Stock, Shares, Outstanding	75,076,794		75,122,129
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-cash share-based payment expense	$ 2,044
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount	4,835
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-cash share-based payment expense	8,634
Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount	$ 23,214

Cost of Shares Repurchased from Employees and Directors to settle tax obligations related to share vesting

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Shares Repurchased from Employees and Directors to settle tax obligations related to share vesting.

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Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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-Publisher FASB
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Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.

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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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Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

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Amount of noncash expense for share-based payment arrangement.

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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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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate 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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