Adjustments to Additional Paid in Capital, Deferred Compensation Equity

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It represents the element common shares effective date of the incentive plan.

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Represents the percentage of value consisting at the time of stock granted during the period.

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Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Granted in Period, Cash Value

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It represents the fair value of Performance Share Awards granted during the period.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Portion Paid in Cash

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period, After Death

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Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period, After Disability or Retirement

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Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period, After Termination of Employment or Service

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Share-based Compensation Arrangement by Share-based Payment Award, Maximum Percentage of Targeted Number of Shares

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Share-based Compensation Arrangement by Share-based Payment Award, Payment Type Percentage, Stock

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Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Targeted Number of Shares

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- Definition

Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Deferred

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- Definition

Share-based compensation arrangement by share-based payment award, performance metric, cumulative free cash flow

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Share-based compensation arrangement by share-based payment award, performance metric, percent

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Share-based compensation arrangement by share-based payment award, performance metric, total shareholder return

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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- Definition

Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements.

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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.

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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- Definition

Net number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Percentage of vesting of share-based compensation awards.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards.

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Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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Number of share options (or share units) exercised during the current period.

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Aggregate value of stock related to Restricted Stock Awards issued during the period.

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SHARE-BASED COMPENSATION (Details) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended			3 Months Ended	9 Months Ended
	Dec. 15, 2017	Dec. 15, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jul. 30, 2017	Jul. 30, 2017	Jul. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares effective date of incentive plan							10 years
Expiration period, after termination of employment							30 days
Expiration period, after death							1 year
Expiration period, after disability or retirement							5 years
Stock options, grants in period (in shares)							10,424	28,535
Grant-date fair value (in USD per share)							$ 6.59	$ 5.38
Stock options exercised (in shares)							100,000
Stock options exercised, intrinsic value							$ 1,100
Cash proceeds received from exercise of stock options							1,200
Value, restricted stock award, gross							0
Allocated share-based compensation expense							8,100	$ 7,700
Deferred compensation obligation							$ 1,200
Employee stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period							1 year
Incentive Plan \| Employee stock options \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period							3 years
Incentive Plan \| Employee stock options \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period							4 years
Incentive Plan \| PSUs and Performance Share Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares held in employee trust (in shares)						164,663
Executive Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period							3 years
Executive Awards \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long-term incentive awards composition, percentage							40.00%
Executive Awards \| PSUs and Performance Share Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long-term incentive awards composition, percentage							60.00%
Maximum percentage of targeted number of shares						200.00%	200.00%
Options grants, fair value							$ 2,000	2,400
Granted awards, cash value							$ 2,000	2,100
Executive Awards \| PSUs and Performance Share Awards \| Weighted 40%, tranche one
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance metric, cumulative free cash flow						40.00%	40.00%
Executive Awards \| PSUs and Performance Share Awards \| Weighted 40%, tranche two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, performance metric, percent						40.00%	40.00%
Executive Awards \| PSUs and Performance Share Awards \| Weighted 20%
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance metric, total shareholder return						20.00%	20.00%
2014 Key Employee Awards \| PSUs and Performance Share Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options grants, fair value							$ 4,600	5,200
Share-based compensation, award vesting rights (percentage)		50.00%
Percentage of targeted number of shares		149.30%
Stock issued during period due to share-based compensation		100,000
2014 Key Employee Awards \| Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, award vesting rights (percentage)		66.66667%
Key Employee Awards \| PSUs and Performance Share Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period							3 years
Maximum percentage of targeted number of shares						150.00%	150.00%
Performance share award, cash portion (percentage)						50.00%	50.00%
Share-based compensation, payment award, stock (percentage)							50.00%
Share-based compensation, award vesting rights (percentage)							50.00%
Percentage of targeted number of shares		50.00%
Stock issued during period due to share-based compensation		100,000
2015 & 2016 Key Employee \| Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, award vesting rights (percentage)					33.33333%
Value, restricted stock award, gross							$ 4,500	$ 4,200
Shares, restricted stock award, gross (in shares)							300,000	300,000
Scenario, forecast \| 2014 Key Employee Awards \| PSUs and Performance Share Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, award vesting rights (percentage)	50.00%
Scenario, forecast \| 2014 Key Employee Awards \| Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, award vesting rights (percentage)	33.33333%
Scenario, forecast \| 2015 & 2016 Key Employee \| Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, award vesting rights (percentage)			33.33333%	33.33333%