XML 119 R104.htm IDEA: XBRL DOCUMENT v3.3.1.900
Segment Reporting - Summary of Financial Information by Reportable Segment (Detail) - USD ($)
$ in Thousands
 2 Months Ended 3 Months Ended 8 Months Ended 12 Months Ended
Dec. 31, 2014
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Oct. 31, 2014
Jul. 31, 2014
Apr. 30, 2014
Jan. 31, 2014
Oct. 31, 2013
Jul. 31, 2013
Apr. 30, 2013
Jan. 31, 2013
Oct. 31, 2012
Jul. 31, 2012
Dec. 31, 2014
Dec. 31, 2015
Apr. 30, 2014
Apr. 30, 2013
Segment Reporting Information [Line Items]                                      
Inter-company revenues $ 85,646 $ 140,024 $ 146,185 $ 143,714 $ 116,577 $ 141,341 $ 141,387 $ 118,927 $ 117,852 $ 132,296 $ 128,558 $ 108,694 $ 112,167 $ 116,836 $ 117,638 $ 368,374 $ 546,500 $ 497,633 $ 455,335
Depreciation and amortization                               41,485 62,704 60,339 56,576
Operating income (loss) 2,708 4,702 $ 12,696 $ 11,342 $ 3,126 $ 10,064 $ 9,338 (5,973) $ (1,298) $ 9,450 $ 9,737 2,110 $ 78 $ 4,426 $ 5,807 22,110 31,866 11,916 12,421
Interest expense, net                               25,392 40,090 37,863 41,429
Capital expenditures                               55,061 49,995 45,959 55,027
Goodwill 119,170 118,976           119,139       115,928       119,170 118,976 119,139 115,928
Total assets 669,795 649,883           649,897       663,119       669,795 649,883 649,897 663,119
Eastern Region [Member]                                      
Segment Reporting Information [Line Items]                                      
Depreciation and amortization                               17,195 25,977 24,961 23,518
Operating income (loss)                               3,434 7,338 (1,105) (5,291)
Interest expense, net                               (315) (200) (272) 27,054
Capital expenditures                               27,354 24,840 19,870 20,383
Goodwill 17,429 17,429           17,429       16,858       17,429 17,429 17,429 16,858
Total assets 211,020 212,922           200,235       198,710       211,020 212,922 200,235 198,710
Western Region [Member]                                      
Segment Reporting Information [Line Items]                                      
Depreciation and amortization                               19,775 29,488 28,693 26,446
Operating income (loss)                               18,840 26,035 13,298 20,058
Interest expense, net                               (6) 165 112 (1,311)
Capital expenditures                               21,884 20,282 20,471 30,384
Goodwill 87,697 87,503           87,666       86,880       87,697 87,503 87,666 86,880
Total assets 333,028 318,730           331,304       348,455       333,028 318,730 331,304 348,455
Recycling [Member]                                      
Segment Reporting Information [Line Items]                                      
Depreciation and amortization                               2,876 4,480 4,262 4,303
Operating income (loss)                               (238) (2,406) (2,435) (697)
Interest expense, net                                 25   5,553
Capital expenditures                               3,016 1,770 1,111 935
Goodwill 12,315 12,315           12,315       12,190       12,315 12,315 12,315 12,190
Total assets 52,016 49,355           49,652       50,921       52,016 49,355 49,652 50,921
Other [Member]                                      
Segment Reporting Information [Line Items]                                      
Depreciation and amortization                               1,639 2,759 2,423 2,309
Operating income (loss)                               74 899 2,158 (1,649)
Interest expense, net                               25,713 40,100 38,023 10,133
Capital expenditures                               2,807 3,103 4,507 3,325
Goodwill 1,729 1,729           1,729               1,729 1,729 1,729  
Total assets $ 73,731 $ 68,876           $ 68,706       $ 65,033       73,731 68,876 68,706 65,033
Outside Revenues [Member]                                      
Segment Reporting Information [Line Items]                                      
Inter-company revenues                               368,374 546,500 497,633 455,335
Outside Revenues [Member] | Eastern Region [Member]                                      
Segment Reporting Information [Line Items]                                      
Inter-company revenues                               108,423 167,467 147,330 129,889
Outside Revenues [Member] | Western Region [Member]                                      
Segment Reporting Information [Line Items]                                      
Inter-company revenues                               156,877 231,951 216,911 205,747
Outside Revenues [Member] | Recycling [Member]                                      
Segment Reporting Information [Line Items]                                      
Inter-company revenues                               33,741 46,338 43,825 42,273
Outside Revenues [Member] | Other [Member]                                      
Segment Reporting Information [Line Items]                                      
Inter-company revenues                               69,333 100,744 89,567 77,426
Inter-Company Revenue [Member]                                      
Segment Reporting Information [Line Items]                                      
Inter-company revenues                               (83,663) (113,853) (111,635) (100,372)
Inter-Company Revenue [Member] | Eastern Region [Member]                                      
Segment Reporting Information [Line Items]                                      
Inter-company revenues                               31,840 43,560 38,946 30,933
Inter-Company Revenue [Member] | Western Region [Member]                                      
Segment Reporting Information [Line Items]                                      
Inter-company revenues                               50,235 68,284 70,809 65,390
Inter-Company Revenue [Member] | Recycling [Member]                                      
Segment Reporting Information [Line Items]                                      
Inter-company revenues                               (175) 995 (139) 116
Inter-Company Revenue [Member] | Other [Member]                                      
Segment Reporting Information [Line Items]                                      
Inter-company revenues                               $ 1,763 $ 1,014 $ 2,019 $ 3,933