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STOCK-BASED COMPENSATION - Restricted Stock - Additional Information (Detail) - Omnibus Plan [Member] - Restricted Stock [Member] - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted shares of restricted stock			266,116
Share based compensation cost	$ 0.7	$ 0.8	$ 1.6	$ 1.9
Stock based compensation expense unrecognized related to nonvested shares of restricted stock	$ 3.5		$ 3.5
Period for cost recognition not yet recognized			1 year 10 months 24 days
Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted shares of restricted stock			3,745
Restricted stock vesting period			1 year
Management [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted shares of restricted stock			262,371	342,439
Retirement Eligible Shares			13,308	20,447
Restricted stock vesting after two-year anniversary of the grant date [Member] | Management [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting percentage			50.00%	50.00%
Restricted stock vesting after three-year anniversary of the grant date [Member] | Management [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting percentage			50.00%	50.00%

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

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