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Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Taxes Disclosure [Line Items]
Income tax provision	$ 1,858,000	$ 1,411,000
Effective tax rate for continuing operations	21.00%	23.00%
Additional income tax expense for tax deficiencies associated with stock based awards	$ 26,000
Reduction in income tax expense for excess tax benefits associated with stock based awards		$ 83,000
NurseGrid [Member]
Income Taxes Disclosure [Line Items]
Income tax provision	(300,000)
Change in fair value of non-marketable equity investments	$ 1,200,000

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Additional income tax expense for tax deficiencies associated with stock based awards.

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Amount of the increase (decrease) in fair value of the hedged item in a fair value hedge recognized in the income statement.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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