Stock-Based Compensation - Information about Options Exercised (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Share Based Compensation Arrangement By Share Based Payment Award Options Activity [Abstract]
Options exercised	10,000	10,000	10,000	10,000
Total intrinsic value of exercised options		$ 547	$ 288	$ 547
Tax benefits realized		$ 88	$ 71	$ 88

Share based compensation arrangement by share based payment award options activity.

No definition available.

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- Definition

Amount of tax benefit from exercise of option under share-based payment arrangement.

+ References

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

+ References

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- Definition

Number of share options (or share units) exercised during the current period.

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