Revenue Recognition (Tables)

3 Months Ended

Mar. 28, 2020

Revenue Recognition [Abstract]

Disaggregation of revenue [Table Text Block]

The following tables disaggregate our revenue for the three months ended March 28, 2020 and March 30, 2019 by major sources:

Three Months Ended March 28, 2020	Utility		Residential and Commercial		All Other			Consolidated
Type of service:
Tree and plant care	$	141,743	$	60,257	$	(25	)	$	201,975
Grounds maintenance	—		23,066		—			23,066
Storm damage services	523		637		—			1,160
Consulting and other	43,483		17,993		603			62,079
Total revenues	$	185,749	$	101,953	$	578		$	288,280
Geography:
United States	$	177,087	$	95,052	$	578		$	272,717
Canada	8,662		6,901		—			15,563
Total revenues	$	185,749	$	101,953	$	578		$	288,280

Three Months Ended March 30, 2019	Utility		Residential and Commercial		All Other			Consolidated
Type of service:
Tree and plant care	$	103,386	$	60,427	$	(11	)	$	163,802
Grounds maintenance	—		27,942		—			27,942
Storm damage services	1,072		1,625		—			2,697
Consulting and other	36,011		17,401		36			53,448
Total revenues	$	140,469	$	107,395	$	25		$	247,889
Geography:
United States	$	129,882	$	100,999	$	25		$	230,906
Canada	10,587		6,396		—			16,983
Total revenues	$	140,469	$	107,395	$	25		$	247,889

Contract with customer, asset and liability [Table Text Block]

Net contract liabilities consisted of the following:

	March 28, 2020		December 31, 2019
Contract liabilities - current	$	4,320	$	3,129
Contract liabilities - noncurrent	2,787		2,705
Net contract liabilities	$	7,107	$	5,834