XML 40 R30.htm IDEA: XBRL DOCUMENT
v3.23.1

Leases (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2023
Leases [Abstract] |
Schedule of Lease, Cost | The components of lease expense were as follows:
| Three Months Ended March 31, |  |
($ in millions) | 2023 |  | 2022 |  |  |  |
Operating lease cost | $ | 5.9 |  |  | $ | 3.3 |  |  |  |  |
Short-term lease cost | 1.3 |  |  | 0.4 |  |  |  |  |
Variable lease cost | 1.7 |  |  | 1.4 |  |  |  |  |
Total lease cost | $ | 8.9 |  |  | $ | 5.1 |  |  |  |  |
Schedule of Cash Flow and Supplemental Information | Supplemental cash flow information related to leases was as follows:
| Three Months Ended March 31, |  |
($ in millions) | 2023 |  |  | 2022 |  |  |
Cash paid for amounts included in the measurement of lease liabilities: |  |  |  |  |  |  |
Operating cash flows from operating leases | $ | 4.9 |  |  |  | $ | 3.2 |  |  |  |
Right-of-use assets obtained in exchange for new operating lease liabilities | $ | 0.6 |  |  |  | $ | 9.7 |  |  |  |
Schedule of Lessee, Operating Lease, Liability, Maturity | Maturities of operating lease liabilities were as follows:
($ in millions) | March 31, |  | December 31, |  |  |  |  |  |
Year | 2023 |  | 2022 |  |  |  |
2023 (remaining period as of) | $ | 14.5 |  |  | $ | 19.0 |  |  |  |  |  |  |
2024 | 18.3 |  |  | 18.1 |  |  |  |  |  |  |
2025 | 16.2 |  |  | 16.0 |  |  |  |  |  |  |
2026 | 13.4 |  |  | 13.4 |  |  |  |  |  |  |
2027 | 9.3 |  |  | 9.4 |  |  |  |  |  |  |
Thereafter | 51.5 |  |  | 50.8 |  |  |  |  |  |  |
| 123.2 |  |  | 126.7 |  |  |  |  |  |  |
Less: imputed lease interest | (17.1) |  |  | (17.7) |  |  |  |  |  |  |
Total lease liabilities | $ | 106.1 |  |  | $ | 109.0 |  |  |  |  |  |  |

X
- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918686-209980 + Details
Name: | us-gaap_LeaseCostTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918701-209980 + Details
Name: | us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Lessee, Lease Cash Flow And Supplemental Information + References No definition available. + Details
Name: | wst_LesseeLeaseCashFlowAndSupplementalInformationTableTextBlock
Namespace Prefix: | wst_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration