Affiliated Companies (Details)	Dec. 31, 2018
The West Company Mexico, S.A. de C.V. [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest	49.00%
Aluplast S.A. de C.V. [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest	49.00%
Pharma Tap S.A de C.V. [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest	49.00%
Pharma Rubber S.A. de C.V. [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest	49.00%
Daikyo Seiko, Ltd. [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest	25.00%