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EMPLOYEE STOCK COMPENSATION - Share Based Compensation Expense (Detail) - USD ($) $ in Thousands	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]
Total share-based compensation expense	$ 1,497	$ 1,788	$ 2,350	$ 3,875
Related tax benefits	440	524	691	1,136
Unrecognized Expense	12,837		$ 12,837
Weighted-Average Remaining Expected Recognition Period			2 years 6 months
Stock option awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	(24)	80	$ (16)	113
Unrecognized Expense	11		$ 11
Weighted-Average Remaining Expected Recognition Period			1 year
Restricted stock awards and restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	1,521	$ 1,708	$ 2,366	$ 3,762
Unrecognized Expense	$ 12,826		$ 12,826
Weighted-Average Remaining Expected Recognition Period			2 years 6 months

X

- Definition

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

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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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