Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2019

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenue

Disaggregated net sales by major source:

	Three months ended   March 31,
	2019		2018
Rooftop Units	$	88,343	$	74,815
Condensing Units	4,050		4,281
Air Handlers	5,594		5,240
Outdoor Mechanical Rooms	482		973
Water Source Heat Pumps	5,844		4,387
Part Sales	6,490		5,960
Other	3,019		3,426
Net Sales	$	113,822	$	99,082

Disaggregated units sold by major source:

	Three months ended   March 31,
	2019	2018
Rooftop Units	3,762	3,468
Condensing Units	394	411
Air Handlers	580	536
Outdoor Mechanical Rooms	11	14
Water Source Heat Pumps	2,289	1,614
Total Units	7,036	6,043