Basis of Presentation and Significant Accounting Policies - Narrative (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Jan. 01, 2020	Dec. 31, 2019	Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustments due to adoption of ASU 2016-13			$ (900)		$ (5,973)
Allowance for doubtful accounts	$ 14,793			$ 13,026
Effective income tax rate, continuing operations	20.20%	26.60%
Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustments due to adoption of ASU 2016-13			(900)		$ (5,973)
Accounting Standards Update 2016-13
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for doubtful accounts			$ 900
Accounting Standards Update 2016-13 | Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustments due to adoption of ASU 2016-13				$ (900)