Summary of Disaggregated Revenue (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Disaggregation of Revenue [Line Items]
Revenues from product lines, percentage	100.00%	100.00%	100.00%	100.00%
Revenues	$ 1,394,915	$ 1,296,007	$ 3,698,047	$ 3,555,327
United States
Disaggregation of Revenue [Line Items]
Revenues	1,232,564	1,134,852	3,258,283	3,125,814
Canada
Disaggregation of Revenue [Line Items]
Revenues	85,422	87,251	222,429	218,730
Latin America and Caribbean
Disaggregation of Revenue [Line Items]
Revenues	$ 76,929	$ 73,904	$ 217,335	$ 210,783
HVAC Equipment
Disaggregation of Revenue [Line Items]
Revenues from product lines, percentage	68.00%	68.00%	68.00%	68.00%
Other HVAC Products
Disaggregation of Revenue [Line Items]
Revenues from product lines, percentage	29.00%	28.00%	28.00%	28.00%
Commercial Refrigeration Products
Disaggregation of Revenue [Line Items]
Revenues from product lines, percentage	3.00%	4.00%	4.00%	4.00%