EMPLOYEE STOCK COMPENSATION - Share Based Compensation Expense (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	$ 1,346	$ 1,494	$ 4,392	$ 3,844
Related tax benefits	396	439	1,293	1,130
Unrecognized Expense	8,189		$ 8,189
Weighted-Average Remaining Expected Recognition Period			2 years 1 month 6 days
Stock option awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	0	3	$ 4	(13)
Restricted stock awards and restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	1,346	$ 1,491	4,388	$ 3,857
Unrecognized Expense	$ 8,189		$ 8,189
Weighted-Average Remaining Expected Recognition Period			2 years 1 month 6 days

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

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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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 tax benefit for recognition of expense of award under share-based payment arrangement.

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