Affiliated Companies - Schedule of Investments (Details)	Dec. 31, 2020	Nov. 01, 2019	Oct. 31, 2019
The West Company Mexico, S.A. de C.V.
Schedule of Equity Method Investments [Line Items]
Ownership interest	49.00%
Aluplast S.A. de C.V.
Schedule of Equity Method Investments [Line Items]
Ownership interest	49.00%
Pharma Tap S.A. de C.V.
Schedule of Equity Method Investments [Line Items]
Ownership interest	49.00%
Pharma Rubber S.A. de C.V.
Schedule of Equity Method Investments [Line Items]
Ownership interest	49.00%
I&W Pharma Group LLC
Schedule of Equity Method Investments [Line Items]
Ownership interest	49.00%
Daikyo
Schedule of Equity Method Investments [Line Items]
Ownership interest	49.00%	49.00%	25.00%