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Segment Information - Reportable Business Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Segment Reporting Information [Line Items] |  |  |  |  |
Net sales |  | $ 1,651,070 | $ 1,488,499 | $ 4,237,841 | $ 3,695,353
Depreciation and amortization | [1] | 62,171 | 58,031 | 181,826 | 160,127
Rationalization charges |  | 2,315 | 2,505 | 13,026 | 7,247
Segment income |  | 167,917 | 174,033 | 447,420 | 407,408
Amortization of debt issuance costs and discounts |  | 1,400 | 1,200 | 4,100 | 3,300
Dispensing and Specialty Closures |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net sales |  | 533,329 | 475,105 | 1,588,449 | 1,242,725
Depreciation and amortization | [1] | 30,830 | 27,777 | 88,821 | 69,927
Rationalization charges |  | 406 | 787 | 5,704 | 2,229
Segment income |  | 60,090 | 64,161 | 199,571 | 167,971
Metal Containers |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net sales |  | 942,125 | 856,660 | 2,120,740 | 1,962,370
Depreciation and amortization | [1] | 21,231 | 21,008 | 63,809 | 62,034
Rationalization charges |  | 1,822 | 1,639 | 7,068 | 4,755
Segment income |  | 94,271 | 94,497 | 198,520 | 213,757
Custom Containers |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net sales |  | 175,616 | 156,734 | 528,652 | 490,258
Depreciation and amortization | [1] | 10,072 | 9,207 | 29,077 | 28,046
Rationalization charges |  | 87 | 79 | 254 | 263
Segment income |  | 22,704 | 21,887 | 74,434 | 66,918
Corporate |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net sales |  | 0 | 0 | 0 | 0
Depreciation and amortization | [1] | 38 | 39 | 119 | 120
Rationalization charges |  | 0 | 0 | 0 | 0
Segment income |  | $ (9,148) | $ (6,512) | $ (25,105) | $ (41,238)
[1] | Depreciation and amortization excludes amortization of debt discount and debt issuance costs of $1.4 million and $1.2 million for the three months ended September 30, 2021 and 2020, respectively and $4.1 million and $3.3 million for the nine months ended September 30, 2021 and 2020, respectively.

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