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Segment Information - Reportable Business Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Segment Reporting Information [Line Items] |  |  |  |  |
Net sales |  | $ 1,348,661 | $ 1,176,470 | $ 2,586,771 | $ 2,206,854
Depreciation and amortization | [1] | 60,104 | 51,965 | 119,655 | 102,095
Rationalization charges |  | 354 | 1,942 | 10,711 | 4,741
Segment income |  | 152,954 | 131,234 | 279,503 | 233,375
Amortization of debt issuance costs and discounts |  | 1,400 | 1,100 | 2,700 | 2,100
Dispensing and Specialty Closures |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net sales |  | 545,768 | 410,468 | 1,055,120 | 767,619
Depreciation and amortization | [1] | 29,101 | 22,026 | 57,991 | 42,150
Rationalization charges |  | 67 | 700 | 5,298 | 1,442
Segment income |  | 73,836 | 58,581 | 139,481 | 103,810
Metal Containers |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net sales |  | 624,534 | 597,191 | 1,178,615 | 1,105,709
Depreciation and amortization | [1] | 21,329 | 20,545 | 42,578 | 41,026
Rationalization charges |  | 225 | 1,153 | 5,246 | 3,116
Segment income |  | 58,635 | 71,782 | 104,249 | 119,261
Custom Containers |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net sales |  | 178,359 | 168,811 | 353,036 | 333,526
Depreciation and amortization | [1] | 9,632 | 9,352 | 19,005 | 18,840
Rationalization charges |  | 62 | 89 | 167 | 183
Segment income |  | 27,244 | 22,987 | 51,730 | 45,032
Corporate |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net sales |  | 0 | 0 | 0 | 0
Depreciation and amortization | [1] | 42 | 42 | 81 | 79
Rationalization charges |  | 0 | 0 | 0 | 0
Segment income |  | $ (6,761) | $ (22,116) | $ (15,957) | $ (34,728)
[1] | Depreciation and amortization excludes amortization of debt discount and debt issuance costs of $1.4 million and $1.1 million for the three months ended June 30, 2021 and 2020, respectively and $2.7 million and $2.1 million for the six months ended June 30, 2021 and 2020, respectively.

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