XML 84 R104.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
SEGMENT REPORTING - Summary of Financial Information by Reportable Segment (Detail) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Segment Reporting Information [Line Items]                      
Revenues $ 193,619 $ 198,547 $ 187,459 $ 163,664 $ 174,724 $ 172,832 $ 165,649 $ 147,455 $ 743,290 $ 660,660 $ 599,309
Depreciation and amortization                 79,790 70,508 62,102
Operating income (loss) 14,604 $ 18,485 $ 15,544 $ 4,442 (5,138) $ 28,884 $ 15,149 $ 838 53,075 39,733 (12,583)
Goodwill 185,819       162,734       185,819 162,734 122,605
Total assets 932,182       732,410       932,182 732,410  
Eastern                      
Segment Reporting Information [Line Items]                      
Goodwill 30,720       28,154       30,720 28,154 19,192
Western                      
Segment Reporting Information [Line Items]                      
Goodwill 141,055       120,536       141,055 120,536 89,369
Recycling                      
Segment Reporting Information [Line Items]                      
Goodwill 12,315       12,315       12,315 12,315 12,315
Other                      
Segment Reporting Information [Line Items]                      
Goodwill 1,729       1,729       1,729 1,729 1,729
Operating Segments                      
Segment Reporting Information [Line Items]                      
Revenues                 743,290 660,660 599,309
Depreciation and amortization                 79,790 70,508 62,102
Operating income (loss)                 53,075 39,733 (12,583)
Interest expense, net                 24,735 26,021 24,887
Capital expenditures                 103,165 73,232 64,862
Goodwill 185,819       162,734       185,819 162,734 122,605
Total assets 932,182       732,410       932,182 732,410 614,949
Operating Segments | Eastern                      
Segment Reporting Information [Line Items]                      
Revenues                 219,475 206,473 181,170
Depreciation and amortization                 24,322 26,538 23,815
Operating income (loss)                 9,503 4,684 (51,867)
Interest expense, net                 218 12 3
Capital expenditures                 24,499 23,393 17,153
Goodwill 30,720       28,154       30,720 28,154 19,192
Total assets 207,060       184,679       207,060 184,679 157,248
Operating Segments | Western                      
Segment Reporting Information [Line Items]                      
Revenues                 343,399 286,262 250,771
Depreciation and amortization                 47,666 35,843 30,766
Operating income (loss)                 41,883 41,529 35,035
Interest expense, net                 63 (148) (220)
Capital expenditures                 63,540 41,850 42,082
Goodwill 141,054       120,536       141,054 120,536 89,369
Total assets 598,910       428,934       598,910 428,934 344,324
Operating Segments | Recycling                      
Segment Reporting Information [Line Items]                      
Revenues                 42,820 42,191 62,307
Depreciation and amortization                 4,009 4,345 4,125
Operating income (loss)                 (814) (7,805) 2,805
Interest expense, net                 160 140 143
Capital expenditures                 9,719 4,476 2,006
Goodwill 12,316       12,315       12,316 12,315 12,315
Total assets 56,688       48,629       56,688 48,629 48,612
Operating Segments | Other                      
Segment Reporting Information [Line Items]                      
Revenues                 137,596 125,734 105,061
Depreciation and amortization                 3,793 3,782 3,396
Operating income (loss)                 2,503 1,325 1,444
Interest expense, net                 24,294 26,017 24,961
Capital expenditures                 5,407 3,513 3,621
Goodwill 1,729       1,729       1,729 1,729 1,729
Total assets $ 69,524       $ 70,168       69,524 70,168 64,765
Eliminations                      
Segment Reporting Information [Line Items]                      
Revenues                 (163,920) (142,789) (123,972)
Interest expense, net                     0
Eliminations | Eastern                      
Segment Reporting Information [Line Items]                      
Revenues                 (54,738) (52,866) (50,335)
Eliminations | Western                      
Segment Reporting Information [Line Items]                      
Revenues                 (97,339) (81,515) (71,510)
Eliminations | Recycling                      
Segment Reporting Information [Line Items]                      
Revenues                 (9,400) (6,426) (246)
Eliminations | Other                      
Segment Reporting Information [Line Items]                      
Revenues                 $ (2,443) $ (1,982) $ (1,881)