XML 95 R83.htm IDEA: XBRL DOCUMENT
v3.21.2

Fair Value Measurements, Equity Investments and Other Financial Instruments - Equity Investment Without Readily Determinable Fair Value (Details) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2021 USD ($) | Jun. 30, 2021 USD ($) | Dec. 31, 2020 USD ($) investment | Sep. 30, 2020 USD ($) | Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($) | Dec. 31, 2020 USD ($)
Equity Securities without Readily Determinable Fair Value [Roll Forward] |  |  |  |  |  |  |
Carrying value at the beginning of period |  |  |  |  | $ 25.4 | $ 7.5 | $ 7.5
Purchases |  |  |  |  | 14.7 |  | 2.6
Impairments or downward adjustments |  |  |  |  | 0.0 |  | 0.0
Upward adjustments | $ 6.6 |  |  | $ 0.0 | 6.6 | 0.0 | 15.1
Currency translation on investments |  |  |  |  | (0.6) |  | 0.2
Carrying value at the end of period | 46.1 |  | $ 25.4 |  | 46.1 |  | 25.4
Cumulative upward adjustment | $ 21.7 |  | $ 15.1 |  | 21.7 |  | $ 15.1
Number of investments | investment |  |  | 1 |  |  |  |
Additional investment |  | $ 9.0 | $ 5.7 |  | $ 16.0 | $ 0.0 |

X
- Definition Equity Securities without Readily Determinable Fair Value, Asset Purchases + References No definition available. + Details
Name: | see_EquitySecuritiesWithoutReadilyDeterminableFairValueAssetPurchases
Namespace Prefix: | see_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Equity Securities without Readily Determinable Fair Value, Currency Translation On Investments + References No definition available. + Details
Name: | see_EquitySecuritiesWithoutReadilyDeterminableFairValueCurrencyTranslationOnInvestments
Namespace Prefix: | see_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Equity Securities without Readily Determinable Fair Value + References No definition available. + Details
Name: | see_EquitySecuritiesWithoutReadilyDeterminableFairValueRollForward
Namespace Prefix: | see_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of investments + References No definition available. + Details
Name: | see_NumberOfInvestments
Namespace Prefix: | see_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of investment in equity security without readily determinable fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123583765&loc=SL75117539-209714 + Details
Name: | us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of loss from downward price adjustment on investment in equity security without readily determinable fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123583765&loc=SL75117539-209714 + Details
Name: | us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of gain from upward price adjustment on investment in equity security without readily determinable fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123583765&loc=SL75117539-209714 + Details
Name: | us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of cumulative gain from upward price adjustment on investment in equity security without readily determinable fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123583765&loc=SL75117539-209714 + Details
Name: | us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentCumulativeAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The cash outflow associated with the purchase of all investments (debt, security, other) during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration