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Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Effective change in income tax rate	21.20%	20.20%
Discrete benefit from change in tax status of subsidiary from partnership to corporation		$ 6.9

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- Definition

Effective income tax percentage reconciliation change in reclassification from partnership to corporation.

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- Definition

Effective income tax rate reconciliation change in reclassification from partnership to corporation.

+ References

No definition available.

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- References

No definition available.

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