XML 55 R44.htm IDEA: XBRL DOCUMENT
v3.20.2

Long-Term Debt - 2 1/4% Senior Notes (Details) - Two and One Quarter Percent Senior Notes Due 2028 [Member] | Feb. 26, 2020
--- | ---
Debt Instrument Redemption Period - Post March 1 2023 [Member] |
Debt Instrument [Line Items] |
Debt Instrument, Redemption Price, Percentage, Initial | 101.125%
Debt Instrument, Redemption Price, Percentage, Ending | 100.00%
Debt Instrument, Redemption - Pre March 1 2023 [Member] |
Debt Instrument [Line Items] |
Maximum Redemption Percent Allowed And Limited To Proceeds From Equity Offering | 35.00%
Debt Redemption, Price Percent Of Principal Amount, From the Proceeds of Certain Equity Offerings | 102.25%
Debt Instrument, Redemption Price, Percentage | 100.00%
Redemption Price Percent If Change in Control Occurs | 101.00%

X
- Definition Debt Instrument, Redemption Price, Percentage, Ending + References No definition available. + Details
Name: | slgn_DebtInstrumentRedemptionPricePercentageEnding
Namespace Prefix: | slgn_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt Instrument, Redemption Price, Percentage, Initial + References No definition available. + Details
Name: | slgn_DebtInstrumentRedemptionPricePercentageInitial
Namespace Prefix: | slgn_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt Redemption, Price Percent Of Principal Amount, From the Proceeds of Certain Equity Offerings + References No definition available. + Details
Name: | slgn_DebtRedemptionPricePercentOfPrincipalAmountFromtheProceedsofCertainEquityOfferings
Namespace Prefix: | slgn_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Maximum Redemption Percent Allowed And Limited To Proceeds From Equity Offering + References No definition available. + Details
Name: | slgn_MaximumRedemptionPercentAllowedAndLimitedToProceedsFromEquityOffering
Namespace Prefix: | slgn_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Redemption Price Percent If Change in Control Occurs + References No definition available. + Details
Name: | slgn_RedemptionPricePercentIfChangeinControlOccurs
Namespace Prefix: | slgn_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage price of original principal amount of debt at which debt can be redeemed by the issuer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph e -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 + Details
Name: | us-gaap_DebtInstrumentRedemptionPricePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentAxis=slgn_TwoAndOneQuarterPercentSeniorNotesDue20281Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentRedemptionPeriodAxis=slgn_DebtInstrumentRedemptionPeriodPostMarch12023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentRedemptionPeriodAxis=slgn_DebtInstrumentRedemptionPreMarch12023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |