Short and Long-Term Debt - Short-Term Debt Additional Information (Detail) $ in Thousands	1 Months Ended	12 Months Ended
	Feb. 28, 2015 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Line of Credit Facility [Line Items]
Restricted Cash and Cash Equivalents		$ 300	$ 500
Gain (Loss) on Extinguishment of Debt		0	$ (1,494)	$ 0
Average month-end balance		200
Maximum month-end balance	$ 600
Revolving Credit Facility
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		$ 600,000
Debt, Weighted Average Interest Rate		2.77%
Line of Credit Facility, Remaining Borrowing Capacity		$ 361,300
Federal Funds Effective Swap Rate | Revolving Credit Facility
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.50%
Daily Libor Rate | Revolving Credit Facility
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate		1.00%
Minimum | BASE or LIBOR | Revolving Credit Facility
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.00%
Maximum | BASE or LIBOR | Revolving Credit Facility
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate		17500.00%
Senior Revolving Credit Facility Maturing in 2023 | Overnight Bank Funding Rate
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.50%
Multi-currency Notes Due in 2031
Line of Credit Facility [Line Items]
Debt Instrument, Covenant, Fixed Charges Coverage Ratio, Minimum		1.50
Debt Instrument, Covenant, Consolidated Leverage Ratio, Maximum		3.50
Debt Instrument, Covenant, Consolidated Leverage Ratio In Period Of Acquisition, Maximum		4.00
Master Note Facility Due in 2022
Line of Credit Facility [Line Items]
Debt Instrument, Covenant, Fixed Charges Coverage Ratio, Minimum		1.50
Debt Instrument, Covenant, Consolidated Leverage Ratio, Maximum		3.50
Debt Instrument, Covenant, Consolidated Leverage Ratio In Period Of Acquisition, Maximum		4.00
Senior Notes Payable Through Two Thousand Twenty One Five Point Fourty One Percentage [Member]
Line of Credit Facility [Line Items]
Gain (Loss) on Extinguishment of Debt		$ 1,500
Notes Payable, Other Payables [Member] | Multi-currency Notes Due in 2031
Line of Credit Facility [Line Items]
Additional Senior Notes Available for Request		150,000
Notes Payable, Other Payables [Member] | Master Note Facility Due in 2022
Line of Credit Facility [Line Items]
Additional Senior Notes Available for Request		$ 150,000