The percentage of threshold stated for achieving entity's financial performance metrics.

No definition available.

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- Definition

Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

+ References

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

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.

+ References

+ Details

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- Definition

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

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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- Definition

Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(i)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.D.2)
-URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809

+ Details

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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- Details

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- Details

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Balance Type:
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- Details

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Namespace Prefix:
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- Details

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- Details

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SUBSEQUENT EVENTS (Details) - USD ($) $ in Millions		3 Months Ended
SUBSEQUENT EVENTS (Details) - USD ($) $ in Millions	May 01, 2019	Mar. 31, 2019	Mar. 31, 2018
Time Vesting Units
Subsequent Event [Line Items]
Unrecognized compensation expense		$ 3.5	$ 4.7
Financial Performance Units
Subsequent Event [Line Items]
Service period (in years)		2 years
Unrecognized compensation expense		$ 0.2	$ 0.5
Financial Performance Units \| Minimum
Subsequent Event [Line Items]
Financial performance threshold percentage		0.00%
Financial Performance Units \| Maximum
Subsequent Event [Line Items]
Financial performance threshold percentage		150.00%
Subsequent events \| Time Vesting Units
Subsequent Event [Line Items]
Granted (in shares)	67,810
Expected term	10 years
Service period (in years)	5 years
Unrecognized compensation expense	$ 0.8
Subsequent events \| Financial Performance Units
Subsequent Event [Line Items]
Granted (in shares)	59,767
Expected term	10 years
Service period (in years)	2 years
Unrecognized compensation expense	$ 1.4
Subsequent events \| Financial Performance Units \| Minimum
Subsequent Event [Line Items]
Financial performance threshold percentage	0.00%
Subsequent events \| Financial Performance Units \| Maximum
Subsequent Event [Line Items]
Financial performance threshold percentage	150.00%