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Stock-Based Compensation (Detail) - (Table 2) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Total	$ 5,539	$ 5,686
Restricted Stock [Member]
Allocated Share-based Compensation Expense	4,509	4,864
Stock Options [Member]
Allocated Share-based Compensation Expense	$ 1,030	$ 822

X

- Definition

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

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