Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Estimated annual effective income tax rate	30.70%	31.40%
Percentage of allowable business interest expense deduction from adjusted taxable income	50.00%		30.00%
Effective income tax rate reconciliation, prior year income taxes, amount	$ 1.0
Effective income tax rate reconciliation, change in deferred tax assets valuation allowance, amount	1.9
Net tax benefit included in income taxes, discrete items	1.8	$ (3.8)
Income taxes as a percentage of pretax income		(14.10%)
Net tax benefit included in income taxes, discrete items	(1.8)	$ 3.8
Unrecognized tax benefits	2.1		$ 2.1
Unrecognized tax benefits with impact on the effective tax rate	2.1		2.0
Accrued interest expense and penalties	$ 0.9		$ 0.8