REVENUE RECOGNITION (Tables)

6 Months Ended

Jun. 30, 2021

Revenue from Contract with Customer [Abstract]

A table of revenues disaggregated by service line and timing of revenue recognition by operating segment for each of the three and six months ended June 30, 2021 and 2020 follows:

Three Months Ended June 30, 2021


	Eastern		Western		Resource Solutions		Total Revenues
Collection	$	39,364	$	67,963	$	—	$	107,327
Landfill	6,118		16,517		—		22,635
Transfer	13,475		9,976		—		23,451
Transportation	47		3,040		—		3,087
Landfill gas-to-energy	246		854		—		1,100
Processing	1,808		502		21,031		23,341
Non-processing	—		—		34,934		34,934
Total revenues	$	61,058	$	98,852	$	55,965	$	215,875

Transferred at a point-in-time	$	38	$	487	$	14,944	$	15,469
Transferred over time	61,020		98,365		41,021		200,406
Total revenues	$	61,058	$	98,852	$	55,965	$	215,875

Three Months Ended June 30, 2020


	Eastern		Western		Resource Solutions		Total Revenues
Collection	$	35,463	$	58,545	$	—	$	94,008
Landfill	4,568		15,218		—		19,786
Transfer	11,451		9,003		—		20,454
Transportation	52		3,454		—		3,506
Landfill gas-to-energy	197		721		—		918
Processing	1,605		345		16,205		18,155
Non-processing	—		—		31,940		31,940
Total revenues	$	53,336	$	87,286	$	48,145	$	188,767

Transferred at a point-in-time	$	69	$	367	$	8,231	$	8,667
Transferred over time	53,267		86,919		39,914		180,100
Total revenues	$	53,336	$	87,286	$	48,145	$	188,767

Six Months Ended June 30, 2021



	Eastern		Western		Resource Solutions		Total Revenues
Collection	$	75,440	$	129,356	$	—	$	204,796
Landfill	11,520		30,136		—		41,656
Transfer	22,899		17,123		—		40,022
Transportation	95		5,253		—		5,348
Landfill gas-to-energy	515		1,888		—		2,403
Processing	2,934		860		38,302		42,096
Non-processing	—		—		69,085		69,085
Total revenues	$	113,403	$	184,616	$	107,387	$	405,406

Transferred at a point-in-time	$	82	$	988	$	25,036	$	26,106
Transferred over time	113,321		183,628		82,351		379,300
Total revenues	$	113,403	$	184,616	$	107,387	$	405,406

Six Months Ended June 30, 2020



	Eastern		Western		Resource Solutions		Total Revenues
Collection	$	71,400	$	117,168	$	—	$	188,568
Landfill	8,112		31,528		—		39,640
Transfer	20,834		15,673		—		36,507
Transportation	99		6,125		—		6,224
Landfill gas-to-energy	583		1,361		—		1,944
Processing	2,451		636		30,023		33,110
Non-processing	—		—		65,683		65,683
Total revenues	$	103,479	$	172,491	$	95,706	$	371,676

Transferred at a point-in-time	$	125	$	602	$	12,692	$	13,419
Transferred over time	103,354		171,889		83,014		358,257
Total revenues	$	103,479	$	172,491	$	95,706	$	371,676