10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C.  20549

FORM 10-Q

(Mark One)

☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2021

or

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from            to

Commission File Number 1-8036

WEST PHARMACEUTICAL SERVICES, INC.

(Exact name of registrant as specified in its charter)

	Pennsylvania	23-1210010
(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification Number)
	530 Herman O. West Drive, Exton, PA	19341-0645
	(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code: 610-594-2900

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol	Name of each exchange on which registered
Common Stock, par value $0.25 per share	WST	New York Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.          Yes ☑ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).                      Yes ☑ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company.  See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	☑	Accelerated filer	☐
Non-accelerated filer	☐	Smaller reporting company	☐
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.                                                      ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes ☐ No ☑

As of July 19, 2021, there were 73,979,087 shares of the registrant’s common stock outstanding.

TABLE OF CONTENTS

		Page
PART I. FINANCIAL INFORMATION
ITEM 1.	FINANCIAL STATEMENTS (UNAUDITED)
	Condensed Consolidated Statements of Income for the Three and Six Months ended June 30, 2021 and 2020	3
	Condensed Consolidated Statements of Comprehensive Income for the Three and Six Months ended June 30, 2021 and 2020	4
	Condensed Consolidated Balance Sheets at June 30, 2021 and December 31, 2020	5
	Condensed Consolidated Statements of Cash Flows for the Six Months ended June 30, 2021 and 2020	6
	Notes to Condensed Consolidated Financial Statements	7
ITEM 2.	MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	26
ITEM 3.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	40
ITEM 4.	CONTROLS AND PROCEDURES	40
PART II. OTHER INFORMATION
ITEM 1.	LEGAL PROCEEDINGS	40
ITEM 1A.	RISK FACTORS	40
ITEM 2.	UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS	40
ITEM 6.	EXHIBITS	40
SIGNATURE		41
EXHIBIT INDEX		F-1

2

PART I. FINANCIAL INFORMATION

ITEM 1.   FINANCIAL STATEMENTS

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)

West Pharmaceutical Services, Inc. and Subsidiaries

(in millions, except per share data)

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Net sales	$	723.6	$	527.2	$	1,394.3	$	1,018.7
Cost of goods and services sold	408.5		332.1		807.3		656.6
Gross profit	315.1		195.1		587.0		362.1
Research and development	13.8		10.8		26.0		21.5
Selling, general and administrative expenses	92.7		77.7		172.9		149.5
Other expense (income) (Note 15)	(2.7)		3.0		1.2		(0.5)
Operating profit	211.3		103.6		386.9		191.6
Interest expense	1.9		2.0		3.8		4.0
Interest income	(0.2)		(0.2)		(0.3)		(1.0)
Other nonoperating (income) expense	(1.4)		(0.2)		(2.5)		0.1
Income before income taxes	211.0		102.0		385.9		188.5
Income tax expense	32.3		16.0		61.0		31.0
Equity in net income of affiliated companies	(8.6)		(5.2)		(13.6)		(8.0)
Net income	$	187.3	$	91.2	$	338.5	$	165.5
Net income per share:
Basic	$	2.53	$	1.24	$	4.58	$	2.24
Diluted	$	2.47	$	1.21	$	4.47	$	2.19
Weighted average shares outstanding:
Basic	74.0		73.8		74.0		73.8
Diluted	75.7		75.5		75.8		75.5

See accompanying notes to condensed consolidated financial statements.

3

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED)

West Pharmaceutical Services, Inc. and Subsidiaries

(in millions)

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Net income	$	187.3	$	91.2	$	338.5	$	165.5
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	5.7		13.0		(22.7)		(34.3)
Defined benefit pension and other postretirement plan adjustments, net of tax of $0, $(1.7), $0.2, and $(1.1), respectively	0.1		(5.8)		0.7		(3.8)
Net (loss) gain on derivatives, net of tax of $0.8, $(1.5), $0 and $(0.2), respectively	1.2		(2.7)		(0.6)		(0.1)
Other comprehensive income (loss), net of tax	7.0		4.5		(22.6)		(38.2)
Comprehensive income	$	194.3	$	95.7	$	315.9	$	127.3

See accompanying notes to condensed consolidated financial statements.

4

CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED)

West Pharmaceutical Services, Inc. and Subsidiaries

(in millions, except per share data)	June 30, 2021		December 31, 2020
ASSETS
Current assets:
Cash and cash equivalents	$	576.2	$	615.5
Accounts receivable, net	480.5		385.3
Inventories	345.2		321.3
Other current assets	75.1		51.6
Total current assets	1,477.0		1,373.7
Property, plant and equipment	2,098.4		2,035.5
Less: accumulated depreciation and amortization	1,125.3		1,092.3
Property, plant and equipment, net	973.1		943.2
Operating lease right-of-use assets	62.8		68.3
Investments in affiliated companies	211.7		214.7
Goodwill	110.0		111.1
Intangible assets, net	27.8		30.5
Deferred income taxes	28.8		16.0
Pension and other postretirement benefits	16.0		12.9
Other noncurrent assets	26.3		23.4
Total Assets	$	2,933.5	$	2,793.8
LIABILITIES AND EQUITY
Current liabilities:
Notes payable and other current debt	$	2.3	$	2.3
Accounts payable	205.1		213.1
Pension and other postretirement benefits	2.4		2.3
Accrued salaries, wages and benefits	87.7		106.0
Income taxes payable	17.7		26.0
Operating lease liabilities	9.3		10.1
Other current liabilities	148.1		143.6
Total current liabilities	472.6		503.4
Long-term debt	251.8		252.9
Deferred income taxes	12.2		10.4
Pension and other postretirement benefits	54.0		57.5
Operating lease liabilities	56.0		60.4
Deferred compensation benefits	24.7		22.9
Other long-term liabilities	29.6		31.8
Total Liabilities	900.9		939.3
Commitments and contingencies (Note 17)
Equity:
Preferred stock, 3.0 million shares authorized; 0 shares issued and outstanding	—		—
Common stock, par value $0.25 per share; 200.0 million shares authorized; shares issued: 75.3 million and 75.3 million; shares outstanding: 74.0 million and 74.0 million	18.8		18.8
Capital in excess of par value	248.0		267.3
Retained earnings	2,160.2		1,846.7
Accumulated other comprehensive loss	(133.2)		(110.6)
Treasury stock, at cost (1.3 million and 1.3 million shares)	(261.2)		(167.7)
Total Equity	2,032.6		1,854.5
Total Liabilities and Equity	$	2,933.5	$	2,793.8

See accompanying notes to condensed consolidated financial statements.

5

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)

West Pharmaceutical Services, Inc. and Subsidiaries

(in millions)

	Six Months Ended June 30,
	2021		2020
Cash flows from operating activities:
Net income	$	338.5	$	165.5
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	55.7		50.1
Amortization	2.2		2.1
Stock-based compensation	16.2		17.7
Pension settlement charge	0.7		2.3
Contingent consideration payments in excess of acquisition-date liability	(0.8)		(0.3)
Other non-cash items, net	(10.9)		(4.9)
Changes in assets and liabilities	(168.5)		(27.3)
Net cash provided by operating activities	233.1		205.2
Cash flows from investing activities:
Capital expenditures	(111.6)		(69.2)
Purchase of intangibles	—		(3.8)
Other, net	1.2		0.2
Net cash used in investing activities	(110.4)		(72.8)
Cash flows from financing activities:
Repayments of long-term debt	(1.1)		(1.1)
Dividend payments	(25.2)		(23.6)
Proceeds from stock-based compensation awards	17.8		18.4
Employee stock purchase plan contributions	3.9		2.9
Shares purchased under share repurchase programs	(137.1)		(115.5)
Shares repurchased for employee tax withholdings	(14.4)		(2.3)
Net cash used in financing activities	(156.1)		(121.2)
Effect of exchange rates on cash	(5.9)		(4.4)
Net (decrease) increase in cash and cash equivalents	(39.3)		6.8
Cash, including cash equivalents at beginning of period	615.5		439.1
Cash, including cash equivalents at end of period	$	576.2	$	445.9

See accompanying notes to condensed consolidated financial statements.

6

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

Note 1:  Basis of Presentation and Summary of Significant Accounting Policies

Basis of Presentation: The condensed consolidated financial statements included in this report are unaudited and have been prepared in accordance with United States (“U.S.”) generally accepted accounting principles (“U.S. GAAP”) for interim financial reporting and U.S. Securities and Exchange Commission (“SEC”) regulations. The year-end condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by U.S. GAAP. Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with U.S. GAAP have been condensed or omitted. In the opinion of management, these financial statements include all adjustments, which are of a normal recurring nature, necessary for a fair statement of the financial position, results of operations, cash flows and the change in equity for the periods presented. The condensed consolidated financial statements for the three and six months ended June 30, 2021, should be read in conjunction with the consolidated financial statements and notes thereto of West Pharmaceutical Services, Inc. and its majority-owned subsidiaries (which may be referred to as “West”, the “Company”, “we”, “us” or “our”) appearing in our Annual Report on Form 10-K for the year ended December 31, 2020 (the “2020 Annual Report”). The results of operations for any interim period are not necessarily indicative of results for the full year.

West has been actively monitoring the novel coronavirus (“COVID-19”) situation and its impact globally. Throughout the COVID-19 pandemic, production facilities have continued to operate as they had prior to the pandemic, other than for enhanced safety measures intended to prevent the spread of the virus and higher levels of production at certain plant locations to meet additional customer demand. The remote working arrangements and travel restrictions imposed by various governments have had limited impact on our ability to maintain operations, as our manufacturing operations have generally been exempted from stay-at-home orders.

Note 2:  New Accounting Standards

Standards Issued Not Yet Adopted

In March 2020, the FASB issued guidance which provides optional expedients and exceptions to address the impact of reference rate reform where contracts, hedging relationships and other transactions that reference the London Interbank Offered Rate (“LIBOR”) or another reference rate need to be discontinued. This guidance was effective upon issuance and generally can be applied through December 31, 2022. We are currently evaluating the impact to our financial statements, the transition, and disclosure requirements of this guidance.

Note 3:  Revenue

Our revenue results from the sale of goods or services and reflects the consideration to which we expect to be entitled in exchange for those goods or services. We record revenue based on a five-step model, in accordance with ASC Topic 606. Following the identification of a contract with a customer, we identify the performance obligations (goods or services) in the contract, determine the transaction price, allocate the transaction price to the performance obligations in the contract, and recognize the revenue when (or as) we satisfy the performance obligations by transferring the promised goods or services to our customers. A good or service is transferred when (or as) the customer obtains control of that good or service.

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The following table presents the approximate percentage of our net sales by market group:

	Three Months Ended June 30,		Six Months Ended June 30,
	2021	2020	2021	2020
Biologics	41 %	28 %	40 %	28 %
Generics	16 %	21 %	17 %	20 %
Pharma	24 %	27 %	24 %	28 %
Contract-Manufactured Products	19 %	24 %	19 %	24 %
	100 %	100 %	100 %	100 %

The following table presents the approximate percentage of our net sales by product category:

	Three Months Ended June 30,		Six Months Ended June 30,
	2021	2020	2021	2020
High-Value Product Components	55 %	44 %	54 %	44 %
High-Value Product Delivery Devices	4 %	6 %	4 %	5 %
Standard Packaging	22 %	26 %	23 %	27 %
Contract-Manufactured Products	19 %	24 %	19 %	24 %
	100 %	100 %	100 %	100 %

The following table presents the approximate percentage of our net sales by geographic location:

	Three Months Ended June 30,		Six Months Ended June 30,
	2021	2020	2021	2020
Americas	43 %	50 %	45 %	49 %
Europe, Middle East, Africa	47 %	42 %	45 %	43 %
Asia Pacific	10 %	8 %	10 %	8 %
	100 %	100 %	100 %	100 %

Contract Assets and Liabilities

The following table summarizes our contract assets and liabilities, excluding contract assets included in accounts receivable, net:

	($ in millions)
Contract assets, December 31, 2020	$	10.9
Contract assets, June 30, 2021	10.1
Change in contract assets - increase (decrease)	$	(0.8)
Deferred income, December 31, 2020	$	(57.1)
Deferred income, June 30, 2021	(40.0)
Change in deferred income - decrease (increase)	$	17.1

Starting in the third quarter of 2020, the Company entered into new capacity reservation agreements, which include the receipt of up-front cash. The decrease in the deferred income balance is primarily due to the revenue recognition associated with the capacity reservation agreements, which is to be recognized over the next 1 to 2 years.

8

During the six months ended June 30, 2021, $28.4 million of revenue was recognized that was included in deferred income at the beginning of the year.

The majority of the performance obligations within our contracts are satisfied within one year or less. Performance obligations satisfied beyond one year include those relating to a nonrefundable customer payment of $20.0 million received in June 2013 in return for the exclusive use of the SmartDose® technology platform within a specific therapeutic area. As of June 30, 2021, there was $4.3 million of unearned income related to this payment, of which $0.9 million was included in other current liabilities and $3.4 million was included in other long-term liabilities. The unearned income is being recognized as income on a straight-line basis over the remaining term of the agreement. The agreement does not include a future minimum purchase commitment from the customer.

Note 4:  Net Income Per Share

The following table reconciles the shares used in the calculation of basic net income per share to those used for diluted net income per share:

	Three Months Ended June 30,				Six Months Ended June 30,
(in millions)	2021		2020		2021		2020
Net income	$	187.3	$	91.2	$	338.5	$	165.5
Weighted average common shares outstanding	74.0		73.8		74.0		73.8
Dilutive effect of equity awards, based on the treasury stock method	1.7		1.7		1.8		1.7
Weighted average shares assuming dilution	75.7		75.5		75.8		75.5

During the three months ended June 30, 2021 and 2020, there were 0.1 million and 0.2 million shares, respectively, from stock-based compensation plans not included in the computation of diluted net income per share because their impact was antidilutive. There were 0.1 million and 0.2 million antidilutive shares outstanding during the six months ended June 30, 2021 and 2020, respectively.

In December 2020, we announced a share repurchase program for calendar-year 2021 authorizing the repurchase of up to 631,000 shares of our common stock from time to time on the open market or in privately-negotiated transactions as permitted under Exchange Act Rule 10b-18. The number of shares to be repurchased and the timing of such transactions will depend on a variety of factors, including market conditions. There were no shares purchased during the three months ended June 30, 2021. During the six months ended June 30, 2021, we purchased 479,000 shares of our common stock under the program at a cost of $137.1 million, or an average price of $286.23 per share. This share repurchase program is expected to be completed by December 31, 2021.

Note 5:  Inventories

Inventories are valued at the lower of cost (on a first-in, first-out basis) and net realizable value. Inventory balances were as follows:

($ in millions)	June 30, 2021		December 31, 2020
Raw materials	$	130.2	$	133.5
Work in process	65.8		54.9
Finished goods	149.2		132.9
	$	345.2	$	321.3

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Note 6:  Leases

A lease exists when a contract conveys to the customer the right to control the use of identified property, plant, or equipment for a period of time in exchange for consideration. The definition of a lease embodies two conditions: 1) there is an identified asset in the contract that is land or a depreciable asset (i.e., property, plant, and equipment); and 2) the customer has the right to control the use of the identified asset. Lease payments included in the measurement of the operating lease right-of-use assets and lease liabilities are comprised of fixed payments (including in-substance fixed payments), variable payments that depend on an index or rate, and the exercise price of a lessee option to purchase the underlying asset if the lessee is reasonably certain to exercise.

The components of lease expense were as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
($ in millions)	2021		2020		2021		2020
Operating lease cost	$	3.1	$	3.1	$	6.2	$	6.2
Short-term lease cost	0.3		0.1		0.5		0.3
Variable lease cost	1.4		0.8		2.2		1.6
Total lease cost	$	4.8	$	4.0	$	8.9	$	8.1

Supplemental cash flow information related to leases were as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
($ in millions)	2021		2020		2021		2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	3.1	$	3.2	$	6.3	$	6.4
Right-of-use assets obtained in exchange for new operating lease liabilities	$	0.3	$	1.8	$	0.8	$	4.3

As of June 30, 2021 and December 31, 2020, the weighted average remaining lease term for operating leases was 11.0 and 11.1 years, respectively.

As of June 30, 2021 and December 31, 2020, the weighted average discount rate was 3.66% and 3.68%, respectively.

10

Maturities of operating lease liabilities were as follows:

($ in millions)	June 30,		December 31,
Year	2021		2020
2021 (remaining period as of )	$	6.0	$	12.4
2022	10.5		10.4
2023	9.4		9.3
2024	8.7		8.7
2025	6.9		6.9
Thereafter	37.1		37.5
	78.6		85.2
Less: imputed lease interest	(13.3)		(14.7)
Total lease liabilities	$	65.3	$	70.5

Note 7:  Affiliated Companies

At June 30, 2021 and December 31, 2020, the aggregate carrying amount of our investment in affiliated companies that are accounted for under the equity method was $203.1 million and $201.9 million, respectively, and the aggregate carrying amount of our investment in affiliated companies that are not accounted for under the equity method was $8.6 million and $12.8 million, respectively. We have elected to record these investments, for which fair value was not readily determinable, at cost, less impairment, adjusted for subsequent observable price changes. We test these investments for impairment whenever circumstances indicate that the carrying value of the investments may not be recoverable.

Our purchases from, and royalty payments made to, affiliates totaled $47.6 million and $85.6 million, respectively, for the three and six months ended June 30, 2021, as compared to $27.9 million and $60.4 million, respectively, for the same period in 2020. As of June 30, 2021 and December 31, 2020, the payable balance due to affiliates was $18.9 million and $33.6 million, respectively. The majority of these transactions related to a distributorship agreement with Daikyo that allows us to purchase and re-sell Daikyo products.

Sales to affiliates were $3.1 million and $6.0 million, respectively, for the three and six months ended June 30, 2021, as compared to $2.8 million and $5.0 million, respectively, for the same periods in 2020. As of June 30, 2021 and December 31, 2020, the receivable balance due from affiliates was $2.5 million and $1.4 million, respectively.

Please refer to Note 7, Affiliated Companies, to the consolidated financial statements in our 2020 Annual Report for additional details.

11

Note 8:  Debt

The following table summarizes our long-term debt obligations, net of unamortized debt issuance costs and current maturities. The interest rates shown in parentheses are as of June 30, 2021.

($ in millions)	June 30, 2021		December 31, 2020
Term Loan, due December 31, 2024 (1.02%)	$	86.6	$	87.7
Series A notes, due July 5, 2022 (3.67%)	42.0		42.0
Series B notes, due July 5, 2024 (3.82%)	53.0		53.0
Series C notes, due July 5, 2027 (4.02%)	73.0		73.0
	254.6		255.7
Less: unamortized debt issuance costs	0.5		0.5
Total debt	254.1		255.2
Less: current portion of long-term debt	2.3		2.3
Long-term debt, net	$	251.8	$	252.9

Please refer to Note 8, Debt, to the consolidated financial statements in our 2020 Annual Report for additional details regarding our debt agreements.

Credit Agreement - Credit Facility

At June 30, 2021, the borrowing capacity available under our $300.0 million multi-currency revolving credit facility (the “Credit Facility”), including outstanding letters of credit of $2.4 million, was $297.6 million.

Credit Agreement Amendment - Term Loan

At June 30, 2021, we had $86.6 million in borrowings under the Term Loan, of which $2.3 million was classified as current and $84.3 million was classified as long-term. Please refer to Note 9, Derivative Financial Instruments, for a discussion of the foreign currency hedge associated with the Term Loan.

Note 9:  Derivative Financial Instruments

Our ongoing business operations expose us to various risks, such as fluctuating interest rates, foreign currency exchange rates and increasing commodity prices. To manage these market risks, we periodically enter into derivative financial instruments, such as interest rate swaps, options and foreign exchange contracts for periods consistent with, and for notional amounts equal to or less than, the related underlying exposures. We do not purchase or hold any derivative financial instruments for investment or trading purposes. All derivatives are recorded in our condensed consolidated balance sheet at fair value.

Foreign Exchange Rate Risk

We have entered into forward exchange contracts, designated as fair value hedges, to manage our exposure to fluctuating foreign exchange rates on cross-currency intercompany loans. As of both June 30, 2021 and December 31, 2020, the total amount of these forward exchange contracts was Singapore Dollar (“SGD”) 601.5 million and $13.4 million.

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In addition, we have entered into several foreign currency contracts, designated as cash flow hedges, for periods of up to eighteen months, intended to hedge the currency risk associated with a portion of our forecasted transactions denominated in foreign currencies. As of June 30, 2021, we had outstanding foreign currency contracts to purchase and sell certain pairs of currencies, as follows:

(in millions)		Sell
Currency	Purchase	USD	Euro
USD	38.7	—	32.6
Yen	8,568.0	35.5	38.0
SGD	47.8	28.6	5.8

In December 2019, we entered into a cross-currency swap for $90 million, which we designated as a hedge of our net investment in Daikyo. The notional amount of the cross-currency swap is ¥9.5 billion ($86.6 million) and the swap termination date is December 31, 2024. Under the cross-currency swap, we receive floating interest rate payments based on three-month U.S. Dollar (“USD”) LIBOR plus a margin, in return for paying floating interest rate payments based on three-month Japanese Yen (“Yen”) LIBOR plus a margin.

Commodity Price Risk

Many of our proprietary products are made from synthetic elastomers, which are derived from the petroleum refining process. We purchase the majority of our elastomers via long-term supply contracts, some of which contain clauses that provide for surcharges related to fluctuations in crude oil prices. The following economic hedges did not qualify for hedge accounting treatment since they did not meet the highly effective requirement at inception.

From November 2017 through June 2021, we purchased several series of call options for a total of 552,686 barrels of crude oil to mitigate our exposure to such oil-based surcharges and protect operating cash flows with regard to a portion of our forecasted elastomer purchases.

As of June 30, 2021, we had outstanding contracts to purchase 171,634 barrels of crude oil from July 2021 to December 2022, at a weighted-average strike price of $65.77 per barrel.

Effects of Derivative Instruments on Financial Position and Results of Operations

Please refer to Note 10, Fair Value Measurements, for the balance sheet location and fair values of our derivative instruments as of June 30, 2021 and December 31, 2020.

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The following table summarizes the effects of derivative instruments designated as fair value hedges on the condensed consolidated statements of income:

	Amount of (Gain) Loss Recognized in Income for the				Amount of (Gain) Loss Recognized in Income for the
	Three Months Ended June 30,				Six Months Ended June 30,				Location on Statement of Income
($ in millions)	2021		2020		2021		2020
Fair Value Hedges:
Hedged item (intercompany loan)	$	4.8	$	(1.2)	$	(5.1)	$	15.9	Other expense (income)
Derivative designated as hedging instrument	(4.8)		1.2		5.1		(15.9)		Other expense (income)
Amount excluded from effectiveness testing	(0.6)		(2.0)		(1.2)		(3.9)		Other expense (income)
Total	$	(0.6)	$	(2.0)	$	(1.2)	$	(3.9)

We recognize in earnings the initial value of forward point components on a straight-line basis over the life of the fair value hedge. The amounts recognized in earnings, pre-tax, for forward point components for the three and six months ended June 30, 2021 and 2020 were $0.6 million, $1.2 million, and $1.7 million, $3.7 million, respectively.

The following tables summarize the effects of derivative instruments designated as fair value, cash flow, and net investment hedges on other comprehensive income (“OCI”) and earnings, net of tax:

	Amount of Gain (Loss) Recognized in OCI for the				Amount of (Gain) Loss Reclassified from Accumulated OCI into Income for the				Location of (Gain) Loss Reclassified from Accumulated OCI into Income
	Three Months Ended June 30,				Three Months Ended June 30,
($ in millions)	2021		2020		2021		2020
Fair Value Hedges
Foreign currency hedge contracts	$	0.2	$	(0.7)	$	0.4	$	(1.3)	Other expense (income)
Total	$	0.2	$	(0.7)	$	0.4	$	(1.3)
Cash Flow Hedges:
Foreign currency hedge contracts	$	(0.4)	$	0.4	$	0.5	$	(0.3)	Net sales
Foreign currency hedge contracts	(0.9)		(0.7)		1.5		(0.2)		Cost of goods and services sold
Forward treasury locks	—		—		—		0.1		Interest expense
Total	$	(1.3)	$	(0.3)	$	2.0	$	(0.4)
Net Investment Hedges:
Cross-currency swap	$	0.4	$	0.6	$	—	$	—	Other expense (income)
Total	$	0.4	$	0.6	$	—	$	—

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	Amount of Gain (Loss) Recognized in OCI for the				Amount of (Gain) Loss Reclassified from Accumulated OCI into Income for the				Location of (Gain) Loss Reclassified from Accumulated OCI into Income
	Six Months Ended June 30,				Six Months Ended June 30,
($ in millions)	2021		2020		2021		2020
Fair Value Hedges
Foreign currency hedge contracts	$	(0.4)	$	2.9	$	0.8	$	(2.6)	Other expense (income)
Total	$	(0.4)	$	2.9	$	0.8	$	(2.6)
Cash Flow Hedges:
Foreign currency hedge contracts	$	(0.7)	$	0.5	$	0.9	$	(0.5)	Net sales
Foreign currency hedge contracts	(2.8)		(0.3)		1.5		(0.2)		Cost of goods and services sold
Forward treasury locks	—		—		0.1		0.1		Interest expense
Total	$	(3.5)	$	0.2	$	2.5	$	(0.6)
Net Investment Hedges:
Cross-currency swap	$	5.4	$	(0.6)	$	—	$	—	Other expense (income)
Total	$	5.4	$	(0.6)	$	—	$	—

The following table summarizes the effects of derivative instruments designated as fair value, cash flow, and net investment hedges by line item in our condensed consolidated statements of income:

	Three Months Ended June 30,				Six Months Ended June 30,
($ in millions)	2021		2020		2021		2020
Net sales	$	0.5	$	(0.3)	$	0.9	$	(0.5)
Cost of goods and services sold	1.5		(0.2)		1.5		(0.2)
Interest expense	—		0.1		0.1		0.1
Other expense (income)	0.4		(1.3)		0.8		(2.6)

The following table summarizes the effects of derivative instruments not designated as hedges on the condensed consolidated statements of income:

	Amount of Gain (Loss) Recognized in Income for the				Amount of Gain (Loss) Recognized in Income for the
	Three Months Ended June 30,				Six Months Ended June 30,				Location on Statement of Income
($ in millions)	2021		2020		2021		2020
Commodity call options	$	0.7	$	—	$	1.1	$	(0.2)	Other expense (income)
Total	$	0.7	$	—	$	1.1	$	(0.2)

For the three and six months ended June 30, 2021 and 2020, there was no material ineffectiveness related to our hedges.

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Note 10:  Fair Value Measurements

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The following fair value hierarchy classifies the inputs to valuation techniques used to measure fair value into one of three levels:

•Level 1: Unadjusted quoted prices in active markets for identical assets or liabilities.

•Level 2: Inputs other than quoted prices that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active.

•Level 3: Unobservable inputs that reflect the reporting entity’s own assumptions.

The following tables present the assets and liabilities recorded at fair value on a recurring basis:

	Balance at		Basis of Fair Value Measurements
($ in millions)	June 30, 2021		Level 1		Level 2		Level 3
Assets:
Deferred compensation assets	$	14.6	$	14.6	$	—	$	—
Foreign currency contracts	7.0		—		7.0		—
Cross-currency swap	1.4		—		1.4		—
Commodity call options	1.7		—		1.7		—
	$	24.7	$	14.6	$	10.1	$	—
Liabilities:
Contingent consideration	$	3.6	$	—	$	—	$	3.6
Deferred compensation liabilities	15.5		15.5		—		—
Foreign currency contracts	3.6		—		3.6		—
	$	22.7	$	15.5	$	3.6	$	3.6

	Balance at		Basis of Fair Value Measurements
($ in millions)	December 31, 2020		Level 1		Level 2		Level 3
Assets:
Deferred compensation assets	$	12.8	$	12.8	$	—	$	—
Foreign currency contracts	3.0		—		3.0		—
Commodity call options	0.3				0.3
	$	16.1	$	12.8	$	3.3	$	—
Liabilities:
Contingent consideration	$	3.6	$	—	$	—	$	3.6
Deferred compensation liabilities	14.5		14.5		—		—
Cross-currency swap	5.6		—		5.6		—
Foreign currency contracts	9.7		—		9.7		—
	$	33.4	$	14.5	$	15.3	$	3.6

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Deferred compensation assets are included within other noncurrent assets and are valued using a market approach based on quoted market prices in an active market. The fair value of our foreign currency contracts, included within other current and other noncurrent assets, as well as other current and other long-term liabilities, is valued using an income approach based on quoted forward foreign exchange rates and spot rates at the reporting date. The fair value of our commodity call options, included within other current and other noncurrent assets, is valued using a market approach. The fair value of our contingent consideration, included within other current and other long-term liabilities, is discussed further in the section related to Level 3 fair value measurements. The fair value of deferred compensation liabilities is based on quoted prices of the underlying employees’ investment selections and is included within other long-term liabilities. The fair value of the cross-currency swap, included within other non-current assets, is valued using a market approach. Please refer to Note 9, Derivative Financial Instruments, for further discussion of our derivatives. All derivatives are recognized on a gross basis as either assets or liabilities in the balance sheet.

Level 3 Fair Value Measurements

The fair value of the contingent consideration liability related to the SmartDose technology platform (the “SmartDose contingent consideration”) was initially determined using a probability-weighted income approach, and is revalued at each reporting date or more frequently if circumstances dictate. Changes in the fair value of this obligation are recorded as income or expense within other expense (income) in our condensed consolidated statements of income. The significant unobservable inputs used in the fair value measurement of the SmartDose contingent consideration are the sales projections, the probability of success factors, and the discount rate. Significant increases or decreases in any of those inputs in isolation would result in a significantly lower or higher fair value measurement. Sales projections were derived using upside, base and downside forecasted cases for each partnership and applying probability-weighted scenarios of 10%, 50% and 40% to the three cases, respectively, to reflect the likelihood of West meeting the estimated sales projection targets. The probability of success factors included the probabilities of successful FDA approval for each partnership drug, which was estimated in a range of 19% to 100% based on the development phase of each respective drug, and the probability of the successful execution of supply agreements with each partnership, which was estimated in the range of 25% to 100% based on historical, current, and future supply agreements with the respective partnerships. The fair value of this liability utilized a risk-adjusted discount rate of 19% to present value the cash flows. The discount rate is calculated by determining the after-tax required returns on debt and equity and weighting each return by the respective percent of debt and equity to total capital. Key inputs for the discount rate include the risk-free rate on the 20-Year United States Treasury maturity, equity risk premium, company-specific risk premium, pre-tax cost of debt, and U.S. tax rate, among others. As development and commercialization of the SmartDose technology platform progresses, we may need to update the sales projections, the probability of success factors, and the discount rate used. This could result in an increase or decrease to the SmartDose contingent consideration.

The following table provides a summary of changes in our Level 3 fair value measurements:

	($ in millions)
Balance, December 31, 2019	$	3.3
Increase in fair value recorded in earnings	1.2
Payments	(0.9)
Balance, December 31, 2020	3.6
Increase in fair value recorded in earnings	0.8
Payments	(0.8)
Balance, June 30, 2021	$	3.6

Other Financial Instruments

We believe that the carrying amounts of our cash and cash equivalents and accounts receivable approximate their fair values due to their near-term maturities.

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The estimated fair value of long-term debt is based on quoted market prices for debt issuances with similar terms and maturities and is classified as Level 2 within the fair value hierarchy. At June 30, 2021, the estimated fair value of long-term debt was $263.9 million compared to a carrying amount of $251.8 million. At December 31, 2020, the estimated fair value of long-term debt was $265.7 million and the carrying amount was $252.9 million.

Note 11:  Accumulated Other Comprehensive Loss

The following table presents the changes in the components of accumulated other comprehensive income ("AOCI") (loss), net of tax, for the six months ended June 30, 2021:

($ in millions)	(Losses) gains on derivatives		Change in equity affiliate investment AOCI		Defined benefit pension and other postretirement plans		Foreign currency translation		Total
Balance, December 31, 2020	$	(1.9)	$	0.6	$	(40.5)	$	(68.8)	$	(110.6)
Other comprehensive income (loss) before reclassifications	(3.9)		—		0.1		(22.7)		(26.5)
Amounts reclassified out from accumulated other comprehensive income (loss)	3.3		—		0.6		—		3.9
Other comprehensive income (loss), net of tax	(0.6)		—		0.7		(22.7)		(22.6)
Balance, June 30, 2021	$	(2.5)	$	0.6	$	(39.8)	$	(91.5)	$	(133.2)

A summary of the reclassifications out of accumulated other comprehensive loss is presented in the following table:

($ in millions)	Three Months Ended June 30,				Six Months Ended June 30,				Location on Statement of Income
Detail of components	2021		2020		2021		2020
Gains (losses) on derivatives:
Foreign currency contracts	$	(0.5)	$	0.3	$	(1.0)	$	0.6	Net sales
Foreign currency contracts	(2.3)		0.3		(2.3)		0.4		Cost of goods and services sold
Foreign currency contracts	(0.6)		2.0		(1.2)		4.0		Other expense (income)
Forward treasury locks	(0.1)		(0.1)		(0.2)		(0.2)		Interest expense
Total before tax	(3.5)		2.5		(4.7)		4.8
Tax benefit (expense)	1.2		(0.8)		1.4		(1.6)
Net of tax	$	(2.3)	$	1.7	$	(3.3)	$	3.2
Amortization of defined benefit pension and other postretirement plans:
Prior service credit	$	—	$	0.1	$	0.1	$	0.3	(a)
Actuarial losses	(0.1)		(0.1)		(0.2)		(0.2)		(a)
Settlements	(0.1)		(0.9)		(0.7)		(2.3)		(a)
Total before tax	(0.2)		(0.9)		(0.8)		(2.2)
Tax benefit (expense)	0.1		0.3		0.2		0.6
Net of tax	$	(0.1)	$	(0.6)	$	(0.6)	$	(1.6)
Total reclassifications for the period, net of tax	$	(2.4)	$	1.1	$	(3.9)	$	1.6

(a) These components are included in the computation of net periodic benefit cost. Please refer to Note 14, Benefit Plans, for additional details.

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Note 12: Shareholders’ Equity

The following table presents the changes in shareholders’ equity for the six months ended June 30, 2021:

	Common Shares Issued	Common Stock		Capital in Excess of Par Value		Number of Treasury Shares	Treasury Stock		Retained earnings		Accumulated other comprehensive loss		Total
(in millions)
Balance, December 31, 2020	75.3	$	18.8	$	267.3	1.3	$	(167.7)	$	1,846.7	$	(110.6)	$	1,854.5
Net income	—	—		—		—	—		151.2		—		151.2
Activity related to stock-based compensation	—	—		(20.6)		(0.3)	23.1		—		—		2.5
Shares purchased under share repurchase program	—	—		—		0.5	(137.1)		—		—		(137.1)
Dividends declared ($0.17 per share)	—	—		—		—	—		(12.5)		—		(12.5)
Other comprehensive loss, net of tax	—	—		—		—	—		—		(29.6)		(29.6)
Balance, March 31, 2021	75.3	$	18.8	$	246.7	1.5	$	(281.7)	$	1,985.4	$	(140.2)	$	1,829.0
Net income	—	—		—		—	—		187.3		—		187.3
Activity related to stock-based compensation	—	—		1.3		(0.2)	20.5		—		—		21.8
Dividends declared ($0.17 per share)	—	—		—		—	—		(12.5)		—		(12.5)
Other comprehensive income, net of tax	—	—		—		—	—		—		7.0		7.0
Balance, June 30, 2021	75.3	$	18.8	$	248.0	1.3	$	(261.2)	$	2,160.2	$	(133.2)	$	2,032.6

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The following table presents the changes in shareholders’ equity for the six months ended June 30, 2020:

	Common Shares Issued	Common Stock		Capital in Excess of Par Value		Number of Treasury Shares	Treasury Stock		Retained earnings		Accumulated other comprehensive loss		Total
(in millions)
Balance, December 31, 2019	75.3	$	18.8	$	272.7	1.2	$	(118.1)	$	1,549.4	$	(149.6)	$	1,573.2
Effect of modified retrospective application of a new accounting standard	—	—		—		—	—		(0.1)		—		(0.1)
Net income	—	—		—		—	—		74.3		—		74.3
Activity related to stock-based compensation	—	—		(5.1)		(0.3)	17.9		—		—		12.8
Shares purchased under share repurchase program	—	—		—		0.8	(115.5)		—		—		(115.5)
Dividends declared ($0.16 per share)	—	—		—		—	—		(11.8)		—		(11.8)
Other comprehensive loss, net of tax	—	—		—		—	—		—		(42.7)		(42.7)
Balance, March 31, 2020	75.3	$	18.8	$	267.6	1.7	$	(215.7)	$	1,611.8	$	(192.3)	$	1,490.2
Net income	—	—		—		—	—		91.2		—		91.2
Activity related to stock-based compensation	—	—		(4.5)		(0.2)	24.9		—		—		20.4
Other comprehensive income, net of tax	—	—		—		—	—		—		4.5		4.5
Balance, June 30, 2020	75.3	$	18.8	$	263.1	1.5	$	(190.8)	$	1,703.0	$	(187.8)	$	1,606.3

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Note 13:  Stock-Based Compensation

The West Pharmaceutical Services, Inc. 2016 Omnibus Incentive Compensation Plan (the “2016 Plan”) provides for the granting of stock options, stock appreciation rights, restricted stock awards and performance awards to employees and non-employee directors. A committee of the Board of Directors determines the terms and conditions of awards to be granted. Vesting requirements vary by award. At June 30, 2021, there were 2,484,562 shares remaining in the 2016 Plan for future grants.

During the six months ended June 30, 2021, we granted 157,416 stock options at a weighted average exercise price of $275.02 per share based on the grant-date fair value of our stock to employees under the 2016 Plan. The weighted average grant date fair value of options granted was $63.19 per share as determined by the Black-Scholes option valuation model using the following weighted average assumptions: a risk-free interest rate of 0.7%; expected life of 5.6 years based on prior experience; stock volatility of 23.9% based on historical data; and a dividend yield of 0.3%. Stock option expense is recognized over the vesting period, net of forfeitures.

During the six months ended June 30, 2021, we granted 36,174 stock-settled performance share unit (“PSU”) awards at a weighted average grant-date fair value of $329.88 per share to eligible employees. These awards are earned based on the Company’s performance against pre-established targets, including annual growth rate of revenue and return on invested capital, over a specified performance period. Depending on the achievement of the targets, recipients of stock-settled PSU awards are entitled to receive a certain number of shares of common stock. Shares earned under PSU awards may vary from 0% to 200% of an employee’s targeted award. The fair value of stock-settled PSU awards is based on the market price of our stock at the grant date and is recognized as expense over the performance period, adjusted for estimated target outcomes and net of forfeitures.

During the six months ended June 30, 2021, we granted 4,637 stock-settled restricted share unit (“RSU”) awards at a weighted average grant-date fair value of $279.92 per share to eligible employees. These awards are earned over a specified performance period. The fair value of stock-settled RSU awards is based on the market price of our stock at the grant date and is recognized as expense over the vesting period, net of forfeitures.

Stock-based compensation expense was $10.3 million and $16.2 million for the three and six months ended June 30, 2021, respectively. For the three and six months ended June 30, 2020, stock-based compensation expense was $12.3 million and $17.7 million, respectively.

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Note 14:  Benefit Plans

The components of net periodic benefit cost for the three months ended June 30 were as follows:

	Pension benefits				Other retirement benefits				Total
($ in millions)	2021		2020		2021		2020		2021		2020
Service cost	$	0.4	$	0.3	$	—	$	—	$	0.4	$	0.3
Interest cost	1.5		1.9		—		—		1.5		1.9
Expected return on assets	(3.0)		(3.0)		—		—		(3.0)		(3.0)
Amortization of prior service credit	0.1		—		(0.1)		(0.1)		—		(0.1)
Recognized actuarial losses (gains)	0.5		0.5		(0.4)		(0.4)		0.1		0.1
Settlements	0.1		0.9		—		—		0.1		0.9
Net periodic benefit cost	$	(0.4)	$	0.6	$	(0.5)	$	(0.5)	$	(0.9)	$	0.1

	Pension benefits				Other retirement benefits				Total
($ in millions)	2021		2020		2021		2020		2021		2020
U.S. plans	$	(1.0)	$	0.2	$	(0.5)	$	(0.5)	$	(1.5)	$	(0.3)
International plans	0.6		0.4		—		—		0.6		0.4
Net periodic benefit cost	$	(0.4)	$	0.6	$	(0.5)	$	(0.5)	$	(0.9)	$	0.1

The components of net periodic benefit cost for the six months ended June 30 were as follows:

	Pension benefits				Other retirement benefits				Total
($ in millions)	2021		2020		2021		2020		2021		2020
Service cost	$	0.8	$	0.6	$	—	$	—	$	0.8	$	0.6
Interest cost	2.9		3.9		0.1		0.1		3.0		4.0
Expected return on assets	(6.1)		(6.0)		—		—		(6.1)		(6.0)
Amortization of prior service credit	0.1		—		(0.2)		(0.3)		(0.1)		(0.3)
Recognized actuarial losses (gains)	1.0		1.0		(0.8)		(0.8)		0.2		0.2
Settlements	0.7		2.3		—		—		0.7		2.3
Net periodic benefit cost	$	(0.6)	$	1.8	$	(0.9)	$	(1.0)	$	(1.5)	$	0.8

	Pension benefits				Other retirement benefits				Total
($ in millions)	2021		2020		2021		2020		2021		2020
U.S. plans	$	(1.6)	$	1.1	$	(0.9)	$	(1.0)	$	(2.5)	$	0.1
International plans	1.0		0.7		—		—		1.0		0.7
Net periodic benefit cost	$	(0.6)	$	1.8	$	(0.9)	$	(1.0)	$	(1.5)	$	0.8

During the three and six months ended June 30, 2021, we recorded a $0.1 million and $0.7 million pension settlement charge, respectively, within other nonoperating (income) expense, as we determined that normal-course lump-sum payments for our U.S. qualified defined benefit pension plan exceeded the threshold for settlement accounting under U.S. GAAP for the year.

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Note 15:  Other Expense (Income)

Other expense (income) consists of:

	Three Months Ended June 30,				Six Months Ended June 30,
($ in millions)	2021		2020		2021		2020
Restructuring and related charges	$	1.0	$	—	$	2.2	$	—
Fixed asset impairments and loss (gain) on sale of equipment	0.2		6.3		0.3		6.5
Contingent consideration	0.2		0.1		0.9		0.1
Foreign exchange transaction gains	(2.6)		(2.0)		(2.9)		(5.5)
Other items	(1.5)		(1.4)		0.7		(1.6)
Total other expense (income)	$	(2.7)	$	3.0	$	1.2	$	(0.5)

Restructuring and Related Charges

In July 2020, our Board of Directors approved a restructuring plan designed to optimize certain organizational structures within the Company to better support our continued growth and business priorities. These changes are expected to be implemented over a period of up to twenty-four months from the date of approval. The plan is expected to require restructuring and related charges of approximately $15 million to $17 million. Since its approval, we recorded a net pre-tax amount equal to $6.8 million in restructuring and related charges associated with this plan.

The following table presents activity related to our restructuring obligations related to our 2020 restructuring plan:

($ in millions)	Severance and benefits		Asset-related charges		Other charges		Total
Balance, December 31, 2020	$	4.6	$	—	$	—	$	4.6
Charges	1.0		—		1.2		2.2
Cash payments	(1.1)		—		(0.5)		(1.6)
Balance, June 30, 2021	$	4.5	$	—	$	0.7	$	5.2

In February 2018, our Board of Directors approved a restructuring plan designed to realign our manufacturing capacity with demand. These changes were expected to be implemented over a period of up to twenty-four months from the date of approval. The plan was expected to require restructuring and related charges of approximately $16 million. Since its approval, we have recorded $13.7 million in restructuring and related charges associated with this plan. The plan is now considered complete.

The following table presents activity related to our restructuring obligations related to our 2018 restructuring plan:

($ in millions)	Severance and benefits		Total
Balance, December 31, 2020	$	0.1	$	0.1
Cash payments	(0.1)		(0.1)
Balance, June 30, 2021	$	—	$	—

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Contingent Consideration

Contingent consideration represents changes in the fair value of the SmartDose contingent consideration. Please refer to Note 10, Fair Value Measurements, for additional details.

Other Items

During the six months ended June 30, 2021, we recorded an impairment charge of $2.2 million for one of the Company's cost investments.

During the three and six months ended June 30, 2021, we recorded a net gain of $1.3 million on the sale of one of the Company's cost investments.

During both the three and six months ended June 30, 2021 and 2020, we recorded development income of $0.2 million and $0.4 million, respectively, related to a nonrefundable customer payment of $20.0 million received in June 2013 in return for the exclusive use of the SmartDose technology platform within a specific therapeutic area. Please refer to Note 3, Revenue, for additional information.

Note 16:  Income Taxes

The tax provision for interim periods is determined using the estimated annual effective consolidated tax rate, based on the current estimate of full-year earnings before taxes, adjusted for the impact of discrete quarterly items.

The provision for income taxes was $32.3 million and $16.0 million for the three months ended June 30, 2021 and 2020, respectively, and the effective tax rate was 15.3% and 15.6%, respectively. The provision for income taxes was $61.0 million and $31.0 million for the six months ended June 30, 2021 and 2020, respectively, and the effective tax rate was 15.8% and 16.4%, respectively.

Note 17:  Commitments and Contingencies

From time to time, we are involved in product liability matters and other legal proceedings and claims generally incidental to our normal business activities. We accrue for loss contingencies when it is probable that a liability has been incurred and the amount of the loss can be reasonably estimated. While the outcome of current proceedings cannot be accurately predicted, we believe their ultimate resolution should not have a material adverse effect on our business, financial condition, results of operations or liquidity.

There have been no significant changes to the commitments and contingencies included in our 2020 Annual Report.

Note 18:  Segment Information

Our business operations are organized into two reportable segments, Proprietary Products and Contract-Manufactured Products. Our Proprietary Products reportable segment offers proprietary packaging, containment and drug delivery products, along with analytical lab services and other integrated services and solutions, primarily to biologic, generic and pharmaceutical drug customers. Our Contract-Manufactured Products reportable segment serves as a fully integrated business, focused on the design, manufacture, and automated assembly of complex devices, primarily for pharmaceutical, diagnostic, and medical device customers.

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The Chief Operating Decision Maker ("CODM") evaluates the performance of our segments based upon, among other things, segment net sales and operating profit. Segment operating profit excludes general corporate costs, which include executive and director compensation, stock-based compensation, certain pension and other retirement benefit costs, and other corporate facilities and administrative expenses not allocated to the segments. Also excluded are items that the CODM considers not representative of ongoing operations. Such items are referred to as other unallocated items and generally include restructuring and related charges, certain asset impairments and other specifically-identified income or expense items. The segment operating profit metric is what the CODM uses in evaluating our results of operations and the financial measure that provides a valuable insight into our overall performance and financial position.

The following table presents information about our reportable segments, reconciled to consolidated totals:

	Three Months Ended June 30,				Six Months Ended June 30,
($ in millions)	2021		2020		2021		2020
Net sales:
Proprietary Products	$	587.3	$	399.5	$	1,131.0	$	773.0
Contract-Manufactured Products	136.4		127.8		263.5		245.9
Intersegment sales elimination	(0.1)		(0.1)		(0.2)		(0.2)
Consolidated net sales	$	723.6	$	527.2	$	1,394.3	$	1,018.7

The intersegment sales elimination, which is required for the presentation of consolidated net sales, represents the elimination of components sold between our segments.

The following table provides summarized financial information for our segments:

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Operating profit (loss):
Proprietary Products	$	216.2	$	112.2	$	398.8	$	205.4
Contract-Manufactured Products	18.7		20.5		35.1		33.3
Total business and segment operating profit	$	234.9	$	132.7	$	433.9	$	238.7
Corporate and Unallocated
Stock-based compensation expense	$	(10.3)	$	(12.3)	$	(16.2)	$	(17.7)
Corporate general costs (1)	(13.4)		(14.4)		(27.3)		(27.0)
Unallocated Items:
Restructuring and severance related charges	(1.0)		(2.2)		(2.2)		(2.2)
Amortization of Acquisition-related Intangible Assets (2)	(0.2)		(0.2)		(0.4)		(0.2)
Cost investment activity	1.3		—		(0.9)		—
Total Corporate and Unallocated	(23.6)		(29.1)		(47.0)		(47.1)
Total consolidated operating profit	$	211.3	$	103.6	$	386.9	$	191.6
Other expense, net	0.3		1.6		1.0		3.1
Income before income taxes	$	211.0	$	102.0	$	385.9	$	188.5

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(1) Corporate general costs includes executive and director compensation, certain pension and other retirement benefit costs, and other corporate facilities and administrative expenses not allocated to the segments.

(2) During the three and six months ended June 30, 2021, the Company recorded $0.2 million and $0.4 million, respectively, of amortization expense within operating profit associated with an intangible asset acquired during the second quarter of 2020.

Please refer to Note 15, Other Expense (Income), for further discussion of these items.

ITEM 2.  MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

OVERVIEW

The following discussion is intended to further the reader’s understanding of the consolidated financial condition and results of operations of our Company. It should be read in conjunction with our condensed consolidated financial statements and accompanying notes elsewhere in this Quarterly Report on Form 10-Q (“Form 10-Q”) as well as Management’s Discussion and Analysis of Financial Condition and Results of Operations and the consolidated financial statements and accompanying notes included in our 2020 Annual Report. Our historical financial statements may not be indicative of our future performance. This Management’s Discussion and Analysis of Financial Condition and Results of Operations contains a number of forward-looking statements, all of which are based on our current expectations and could be affected by the uncertainties and risks discussed in Part I, Item 1A of our 2020 Annual Report and in Part II, Item 1A of this Form 10-Q.

Throughout this section, references to “Notes” refer to the notes to our condensed consolidated financial statements (unaudited) in Part I, Item 1 of this Form 10-Q, unless otherwise indicated.

Non-U.S. GAAP Financial Measures

For the purpose of aiding the comparison of our year-over-year results, we may refer to net sales and other financial results excluding the effects of changes in foreign currency exchange rates. Organic net sales exclude the impact from acquisitions and/or divestitures and translate the current-period reported sales of subsidiaries whose functional currency is other than USD at the applicable foreign exchange rates in effect during the comparable prior-year period. We may also refer to adjusted consolidated operating profit and adjusted consolidated operating profit margin, which exclude the effects of unallocated items. The unallocated items are not representative of ongoing operations, and generally include restructuring and related charges, certain asset impairments, and other specifically-identified income or expense items. The re-measured results excluding effects from currency translation, the impact from acquisitions and/or divestitures, and excluding the effects of unallocated items are not in conformity with U.S. GAAP and should not be used as a substitute for the comparable U.S. GAAP financial measures. The non-U.S. GAAP financial measures are incorporated in our discussion and analysis as management uses them in evaluating our results of operations and believes that this information provides users with a valuable insight into our overall performance and financial position.

Our Operations

We are a leading global manufacturer in the design and production of technologically advanced, high-quality, integrated containment and delivery systems for injectable drugs and healthcare products. Our products include a variety of primary packaging, containment solutions, reconstitution and transfer systems, and drug delivery systems, as well as contract manufacturing, analytical lab services and integrated solutions. Our customers include the leading biologic, generic, pharmaceutical, diagnostic, and additional medical device companies in the world. Our top priority is delivering quality products that meet the exact product specifications and quality standards customers require and expect. This focus on quality includes a commitment to excellence in manufacturing, scientific and technical expertise and management, which enables us to partner with our customers in order to deliver safe, effective drug products to patients quickly and efficiently.

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Our business operations are organized into two reportable segments, Proprietary Products and Contract-Manufactured Products. Our Proprietary Products reportable segment offers proprietary packaging, containment and drug delivery products, along with analytical lab services and other integrated services and solutions, primarily to biologic, generic and pharmaceutical drug customers. Our Contract-Manufactured Products reportable segment serves as a fully integrated business, focused on the design, manufacture, and automated assembly of complex devices, primarily for pharmaceutical, diagnostic, and medical device customers. We also maintain collaborations to share technologies and market products with affiliates in Japan and Mexico.

Impact of COVID-19

West has been actively monitoring the COVID-19 situation and its impact globally. Our primary objectives have remained the same throughout the pandemic: to support the safety of our team members and their families and continue to support patients around the world. Throughout the COVID-19 pandemic, our production facilities have continued to operate as they had prior to the pandemic, other than for enhanced safety measures intended to prevent the spread of the virus and higher levels of production at certain plant locations to meet additional customer demand. Our capital and financial resources, including overall liquidity, remain strong. The remote working arrangements and travel restrictions imposed by various governments have had limited impact on our ability to maintain operations, as our manufacturing operations have generally been exempted from stay-at-home orders. However, we cannot predict the impact of the progression of the COVID-19 pandemic on future results due to a variety of factors, including the continued good health of our employees, the ability of suppliers to continue to operate and deliver, the ability of West and its customers to maintain operations, continued access to transportation resources, the changing needs and priorities of customers, any further government and/or public actions taken in response to the pandemic and ultimately the length of the pandemic. We will continue to closely monitor the COVID-19 pandemic in order to ensure the safety of our people and our ability to serve our customers and patients worldwide.

2021 Financial Performance Summary

The following tables present a reconciliation from U.S. GAAP to non-U.S. GAAP financial measures for the three and six months ended June 30, 2021:

($ in millions, except per share data)	Operating Profit		Income tax expense		Net income		Diluted EPS
Three months ended June 30, 2021 GAAP	$	211.3	$	32.3	$	187.3	$	2.47
Unallocated items:
Restructuring and related charges	1.0		0.3		0.7		0.01
Pension settlement (1)	—		—		0.1		—
Amortization of acquisition-related intangible assets (2)	0.2		—		0.7		0.01
Cost investment activity (3)	(1.3)		(0.3)		(1.0)		(0.01)
Tax law changes (4)	—		1.4		(1.4)		(0.02)
Three months ended June 30, 2021 adjusted amounts (non-U.S. GAAP)	$	211.2	$	33.7	$	186.4	$	2.46

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($ in millions, except per share data)	Operating Profit		Income tax expense		Net income		Diluted EPS
Six months ended June 30, 2021 GAAP	$	386.9	$	61.0	$	338.5	$	4.47
Unallocated items:
Restructuring and related charges	2.2		0.5		1.7		0.02
Pension settlement (1)	—		0.2		0.6		0.01
Amortization of acquisition-related intangible assets (2)	0.4		0.1		1.4		0.02
Cost investment activity (3)	0.9		(0.3)		1.2		0.01
Tax law changes (4)	—		1.4		(1.4)		(0.02)
Six months ended June 30, 2021 adjusted amounts (non-U.S. GAAP)	$	390.4	$	62.9	$	342.0	$	4.51

During the three and six months ended June 30, 2021, we recorded a tax benefit of $7.4 million and $18.5 million, respectively, associated with stock-based compensation.

The following tables present a reconciliation from U.S. GAAP to non-U.S. GAAP financial measures for the three and six months ended June 30, 2020:

($ in millions, except per share data)	Operating Profit		Income tax expense		Net income		Diluted EPS
Three months ended June 30, 2020 GAAP	$	103.6	$	16.0	$	91.2	$	1.21
Unallocated items:
Pension settlement (1)	—		0.2		0.7		0.01
Severance related costs	2.2		0.6		1.6		0.02
Amortization of acquisition-related intangible assets (2)	0.2		—		1.1		0.01
Three months ended June 30, 2020 adjusted amounts (non-U.S. GAAP)	$	106.0	$	16.8	$	94.6	$	1.25

($ in millions, except per share data)	Operating Profit		Income tax expense		Net income		Diluted EPS
Six months ended June 30, 2020 GAAP	$	191.6	$	31.0	$	165.5	$	2.19
Unallocated items:
Pension settlement (1)	—		0.5		1.8		0.02
Severance related costs	2.2		0.6		1.6		0.02
Amortization of acquisition-related intangible assets (2)	0.2		—		2.1		0.03
Six months ended June 30, 2020 adjusted amounts (non-U.S. GAAP)	$	194.0	$	32.1	$	171.0	$	2.26

During the three and six months ended June 30, 2020, we recorded a tax benefit of $6.9 million and $12.0 million, respectively, associated with stock-based compensation.

(1)The Company recorded a pension settlement charge within other nonoperating (income) expense, as it determined that normal-course lump-sum payments for our U.S. qualified defined benefit pension plan exceeded the threshold for settlement accounting.

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(2)During the three and six months ended June 30, 2021, the Company recorded $0.2 million and $0.4 million, respectively, of amortization expense within operating profit associated with an intangible asset acquired during the second quarter of 2020. During the three and six months ended June 30, 2021, the Company recorded $0.5 million and $1.0 million, respectively, or amortization expense in association with an acquisition of increased ownership interest in Daikyo. During the three and six months ended June 30, 2020 the Company recorded $0.2 million of amortization expense within operating profit associated with an intangible asset acquired during the second quarter of 2020. During the three and six months ended June 30, 2020, the Company recorded $1.0 million and $2.0 million, respectively, of amortization expense in association with an acquisition of increased ownership interest in Daikyo.

(3)During the three months ended June 30, 2021, we recorded a net gain on the sale of one of the Company's cost investments. During the six months ended June 30, 2021, we recorded an impairment charge on one of our cost investments, partially offset by the gain on the sale of a cost investment.

(4)During the three and six months ended June 30, 2021, the Company recorded a tax benefit of $1.4 million due to the impact of United Kingdom law changes enacted during the quarter.

RESULTS OF OPERATIONS

We evaluate the performance of our segments based upon, among other things, segment net sales and operating profit. Segment operating profit excludes general corporate costs, which include executive and director compensation, stock-based compensation, certain pension and other retirement benefit costs, and other corporate facilities and administrative expenses not allocated to the segments. Also excluded are items that we consider not representative of ongoing operations. Such items are referred to as other unallocated items for which further information can be found above in the reconciliation from U.S. GAAP to non-U.S. GAAP financial measures.

Percentages in the following tables and throughout the Results of Operations section may reflect rounding adjustments.

Net Sales

The following table presents net sales, consolidated and by reportable segment, for the three months ended June 30, 2021 and 2020:

	Three Months Ended June 30,				Percentage Change
($ in millions)	2021		2020		As-Reported		Organic
Proprietary Products	$	587.3	$	399.5	47.0	%	39.3	%
Contract-Manufactured Products	136.4		127.8		6.7	%	3.2	%
Intersegment sales elimination	(0.1)		(0.1)		—		—
Consolidated net sales	$	723.6	$	527.2	37.3	%	30.6	%

Consolidated net sales increased by $196.4 million, or 37.3%, for the three months ended June 30, 2021, as compared to the same period in 2020, including a favorable foreign currency translation impact of $35.2 million. Excluding foreign currency translation effects, consolidated net sales for the three months ended June 30, 2021 increased by $161.2 million, or 30.6%, as compared to the same period in 2020.

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Proprietary Products – Proprietary Products net sales increased by $187.8 million, or 47.0%, for the three months ended June 30, 2021, as compared to the same period in 2020, including a favorable foreign currency translation impact of $30.6 million. Excluding foreign currency translation effects, net sales for the three months ended June 30, 2021 increased by $157.2 million, or 39.3%, as compared to the same period in 2020, primarily due to growth in our high-value product offerings, including Westar®, NovaPure®, and FluroTec®-coated components. The three months ended June 30, 2021 included approximately $117 million in COVID-19 related activity for vaccines, antiviral treatments and treatment of underlying COVID-19 symptoms. The three months ended June 30, 2020 included approximately $19 million in COVID-19 related activity for antiviral treatments and treatment of underlying COVID-19 symptoms.

Contract-Manufactured Products – Contract-Manufactured Products net sales increased by $8.6 million, or 6.7%, for the three months ended June 30, 2021, as compared to the same period in 2020, including a favorable foreign currency translation impact of $4.6 million. Excluding foreign currency translation effects, net sales for the three months ended June 30, 2021 increased by $4.0 million, or 3.2%, as compared to the same period in 2020, due to an increase in the sale of healthcare-related injection and diagnostic devices.

The intersegment sales elimination, which is required for the presentation of consolidated net sales, represents the elimination of components sold between our segments.

The following table presents net sales, consolidated and by reportable segment, for the six months ended June 30, 2021 and 2020:

	Six Months Ended June 30,				Percentage Change
($ in millions)	2021		2020		As-Reported		Organic
Proprietary Products	$	1,131.0	$	773.0	46.3	%	39.5	%
Contract-Manufactured Products	263.5		245.9		7.2	%	3.5	%
Intersegment sales elimination	(0.2)		(0.2)		—		—
Consolidated net sales	$	1,394.3	$	1,018.7	36.9	%	30.8	%

Consolidated net sales increased by $375.6 million, or 36.9%, for the six months ended June 30, 2021, as compared to the same period in 2020, including a favorable foreign currency translation impact of $61.8 million. Excluding foreign currency translation effects, consolidated net sales for the six months ended June 30, 2021 increased by $313.8 million, or 30.8%, as compared to the same period in 2020.

Proprietary Products – Proprietary Products net sales increased by $358.0 million, or 46.3%, for the six months ended June 30, 2021, as compared to the same period in 2020, including a favorable foreign currency translation impact of $52.9 million. Excluding foreign currency translation effects, net sales for the six months ended June 30, 2021 increased by $305.1 million, or 39.5%, as compared to the same period in 2020, primarily due to growth in our high-value product offerings, including Westar®, NovaPure®, Daikyo®, and FluroTec®-coated components. The six months ended June 30, 2021 included approximately $220 million in COVID-19 related activity for vaccines, antiviral treatments and treatment of underlying COVID-19 symptoms. The six months ended June 30, 2020 included approximately $19 million in COVID-19 related activity for antiviral treatments and treatment of underlying COVID-19 symptoms.

Contract-Manufactured Products – Contract-Manufactured Products net sales increased by $17.6 million, or 7.2%, for the six months ended June 30, 2021, as compared to the same period in 2020, including a favorable foreign currency translation impact of $8.9 million. Excluding foreign currency translation effects, net sales for the six months ended June 30, 2021 increased by $8.7 million, or 3.5%, as compared to the same period in 2020, due to an increase in the sale of healthcare-related injection and diagnostic devices.

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Gross Profit

The following table presents gross profit and related gross profit margins, consolidated and by reportable segment:

	Three Months Ended June 30,						Six Months Ended June 30,
($ in millions)	2021			2020			2021			2020
Proprietary Products:
Gross profit	$	292.3		$	170.8		$	544.2		$	320.9
Gross profit margin	49.8		%	42.8		%	48.1		%	41.5		%
Contract-Manufactured Products:
Gross profit	$	22.8		$	24.3		$	42.8		$	41.2
Gross profit margin	16.7		%	19.0		%	16.2		%	16.8		%
Consolidated gross profit	$	315.1		$	195.1		$	587.0		$	362.1
Consolidated gross profit margin	43.5		%	37.0		%	42.1		%	35.5		%

Consolidated gross profit increased by $120.0 million, or 61.5%, for the three months ended June 30, 2021, as compared to the same period in 2020, including a favorable foreign currency translation impact of $13.5 million for the three months ended June 30, 2021, as compared to the same period in 2020. Consolidated gross profit margin increased by 6.5 margin points for the three months ended June 30, 2021, as compared to the same period in 2020.

Consolidated gross profit margin increased by $224.9 million, or 62.1% for the six months ended June 30, 2021, as compared to the same period in 2020, including a favorable foreign currency translation impact of $24.0 million for the six months ended June 30, 2021, as compared to the same period in 2020. Consolidated gross profit margin increased by 6.6 margin points for the six months ended June 30, 2021, as compared to the same period in 2020.

Proprietary Products - Proprietary Products gross profit increased by $121.5 million, or 71.1%, for the three months ended June 30, 2021, as compared to the same period in 2020, including a favorable foreign currency translation impact of $12.6 million. Proprietary Products gross profit margin increased by 7.0 margin points for the three months ended June 30, 2021, as compared to the same periods in 2020, due to a favorable mix of products sold, sales price increases and production efficiencies, partially offset by increased overhead costs including compensation costs.

Proprietary Products gross profit increased by $223.3 million, or 69.6%, for the six months ended June 30, 2021, as compared to the same period in 2020, including a favorable foreign currency translation impact of $22.4 million. Proprietary Products gross profit margin increased by 6.6 margin points for the six months ended June 30, 2021, as compared to the same period in 2020, due to a favorable mix of products sold, sales price increases and production efficiencies, partially offset by increased overhead costs including compensation costs.

Contract-Manufactured Products - Contract-Manufactured Products gross profit decreased by $1.5 million, or 6.2%, for the three months ended June 30, 2021, as compared to the same period in 2020, including a favorable foreign currency translation impact of $0.9 million. Contract-Manufactured Products gross profit margin decreased by 2.3 margin points for the three months ended June 30, 2021, as compared to the same period in 2020, due to increased overhead costs including compensation costs and an unfavorable mix of products sold, partially offset by production efficiencies.

Contract-Manufactured Products gross profit increased by $1.6 million, or 3.9%, for the six months ended June 30, 2021, as compared to the same period in 2020, including a favorable foreign currency translation impact of $1.6 million. Contract-Manufactured Products gross profit margin decreased by 0.6 margin points for the six months ended June 30, 2021, as compared to the same period in 2020, due to increased overhead costs including compensation costs and an unfavorable mix of products sold, partially offset by production efficiencies.

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Research and Development (“R&D”) Costs

The following table presents R&D costs, consolidated and by reportable segment:

	Three Months Ended June 30,				Six Months Ended June 30,
($ in millions)	2021		2020		2021		2020
Proprietary Products	$	13.8	$	10.8	$	26.0	$	21.5
Contract-Manufactured Products	—		—		—		—
Consolidated R&D costs	$	13.8	$	10.8	$	26.0	$	21.5

Consolidated R&D costs increased by $3.0 million, or 27.8%, and $4.5 million, or 20.9% for the three and six months ended June 30, 2021, respectively, as compared to the same period in 2020. Efforts remain focused on the continued investment in self-injection systems development, fluid transfer admixture devices, elastomeric packaging components, and formulation development.

All of the R&D costs incurred during the three and six months ended June 30, 2021 related to Proprietary Products.

Selling, General and Administrative (“SG&A”) Costs

The following table presents SG&A costs, consolidated and by reportable segment and corporate:

	Three Months Ended June 30,						Six Months Ended June 30,
($ in millions)	2021			2020			2021			2020
Proprietary Products	$	65.0		$	44.2		$	121.5		$	94.1
Contract-Manufactured Products	3.8			3.7			7.5			7.7
Corporate	23.9			29.8			43.9			47.7
Consolidated SG&A costs	$	92.7		$	77.7		$	172.9		$	149.5
SG&A as a % of net sales	12.8		%	14.7		%	12.4		%	14.7		%

Consolidated SG&A costs increased by $15.0 million, or 19.3%, for the three months ended June 30, 2021, respectively, as compared to the same period in 2020, due to an increase in compensation costs, costs related to professional services and an unfavorable foreign currency translation impact of $2.3 million.

Consolidated SG&A costs increased by $23.4 million, or 15.7%, for the six months ended June 30, 2021, respectively, as compared to the same period in 2020, due to an increase in compensation costs and an unfavorable foreign currency translation impact of $4.1 million.

Proprietary Products - Proprietary Products SG&A costs increased by $20.8 million, or 47.1%, for the three months ended June 30, 2021, respectively, as compared to the same period in 2020. Proprietary Products SG&A costs increased primarily due to an increase in compensation costs, costs related to professional services and an unfavorable foreign currency translation impact of $2.1 million.

Proprietary Products SG&A costs increased by $27.4 million, or 29.1%, for the six months ended June 30, 2021, respectively, as compared to the same period in 2020. Proprietary Products SG&A costs increased primarily due to an increase in compensation costs, costs related to professional services and an unfavorable foreign currency translation impact of $3.9 million.

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Contract-Manufactured Products - Contract-Manufactured Products SG&A costs increased by $0.1 million, or 2.7% for the three months ended June 30, 2021, as compared to the same period in 2020, and decreased by $0.2 million, or 2.6% for the six months ended June 30, 2021, as compared to the same period in 2020.

Corporate - Corporate SG&A costs decreased by $5.9 million, or 19.8%, for the three months ended June 30, 2021, respectively, as compared to the same period in 2020, primarily due to a reduction in compensation costs allocated to the Corporate segment and a decrease in severance related charges.

Corporate SG&A costs decreased by $3.8 million, or 8.0%, for the six months ended June 30, 2021, respectively, as compared to the same period in 2020, primarily due to a reduction in compensation costs allocated to the Corporate segment and a decrease in severance related charges, stock-based compensation costs and costs related to professional services.

Other Expense (Income)

The following table presents other income and expense items, consolidated and by reportable segment, corporate and unallocated items:

Expense (Income)	Three Months Ended June 30,				Six Months Ended June 30,
($ in millions)	2021		2020		2021		2020
Proprietary Products	$	(2.7)	$	3.6	$	(2.1)	$	(0.1)
Contract-Manufactured Products	0.3		0.1		0.2		0.2
Corporate and unallocated	(0.3)		(0.7)		3.1		(0.6)
Consolidated other expense (income)	$	(2.7)	$	3.0	$	1.2	$	(0.5)

Other income and expense items, consisting of foreign exchange transaction gains and losses, gains and losses on the sale of fixed assets, development and licensing income, contingent consideration, fixed asset impairments and miscellaneous income and charges, are generally recorded within segment results.

Consolidated other expense (income) changed by $5.7 million for the three months ended June 30, 2021, as compared to the same period in 2020, due to fixed asset impairments recorded within the Proprietary Products segment during the three months ended June 30, 2020 that did not recur for the three months ended June 30, 2021, and an increase in restructuring and related charges.

Consolidated other expense (income) changed by $1.7 million for the six months ended June 30, 2021, as compared to the same period in 2020, due to an increase in restructuring and related charges, a reduction in foreign currency translation impact, and fixed asset impairments recorded within the Proprietary Products segment during the three months ended June 30, 2020 that did not recur for the three months ended June 30, 2021.

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Operating Profit

The following table presents adjusted operating profit, consolidated and by reportable segment, corporate and unallocated items:

	Three Months Ended June 30,						Six Months Ended June 30,
($ in millions)	2021			2020			2021			2020
Proprietary Products	$	216.2		$	112.2		$	398.8		$	205.4
Contract-Manufactured Products	18.7			20.5			35.1			33.3
Corporate	(23.7)			(26.7)			(43.5)			(44.7)
Adjusted consolidated operating profit	$	211.2		$	106.0		$	390.4		$	194.0
Adjusted consolidated operating profit margin	29.2		%	20.1		%	28.0		%	19.0		%
Unallocated items	0.1			(2.4)			(3.5)			(2.4)
Consolidated operating profit	$	211.3		$	103.6		$	386.9		$	191.6
Consolidated operating profit margin	29.2		%	19.7		%	27.7		%	18.8		%

Consolidated operating profit increased by $107.7 million, or 104.0%, for the three months ended June 30, 2021, as compared to the same period in 2020, including a favorable foreign currency translation impact of $11.1 million for the three months ended June 30, 2021, as compared to the same period in 2020.

Consolidated operating profit increased by $195.3 million, or 101.9%, for the six months ended June 30, 2021, respectively, as compared to the same period in 2020, including a favorable foreign currency translation impact of $19.7 million for the six months ended June 30, 2021, as compared to the same period in 2020.

Proprietary Products - Proprietary Products operating profit increased by $104.0 million, or 92.7%, for the three months ended June 30, 2021, as compared to the same period in 2020, including a favorable foreign currency translation impact of $10.2 million, due to the factors described above, most notably the sales increase in our high-value product offerings, inclusive of COVID-19 related activity.

Proprietary Products operating profit increased by $193.4 million, or 94.2%, for the six months ended June 30, 2021, as compared to the same period in 2020, including a favorable foreign currency translation impact of $18.2 million, due to the factors described above, most notably due to the sales increase in our high-value product offerings, inclusive of COVID-19 related activity.

Contract-Manufactured Products - Contract-Manufactured Products operating profit decreased by $1.8 million, or 8.8%, for the three months ended June 30, 2021, as compared to the same period in 2020, including a favorable foreign currency translation impact of $0.9 million, due to the factors described above, most notably due to increased overhead costs including compensation costs and an unfavorable mix of products sold.

Contract-Manufactured Products operating profit increased by $1.8 million, or 5.4%, for the six months ended June 30, 2021, respectively, as compared to the same period in 2020, including a favorable foreign currency translation impact of $1.5 million, due to the factors described above.

Corporate- Corporate costs decreased by $3.0 million, or 11.2%, for the three months ended June 30, 2021, as compared to the same period in 2020, due to the factors described above.

Corporate costs decreased by $1.2 million, or 2.7%, for the six months ended June 30, 2021, respectively, as compared to the same period in 2020, due to the factors described above.

34

Unallocated items – Other unallocated items during the three months ended June 30, 2021 consisted of $1.0 million in restructuring and related costs, $0.2 million of amortization expense associated with an acquisition of an intangible asset during the second quarter of 2020, and a net gain of $1.3 million on the sale of one of the Company's cost investments.

Other unallocated items during the six months ended June 30, 2021 consisted of $2.2 million in restructuring and related costs, $0.4 million of amortization expense associated with an acquisition of an intangible asset during the second quarter of 2020, and a net loss in our cost investment activity of $0.9 million.

Other unallocated items during the three and six months ended June 30, 2020 consisted of $2.2 million in severance related costs and $0.2 million of amortization expense associated with an acquisition of an intangible asset during the second quarter of 2020. Please refer to Note 15, Other Expense (Income), for further discussion of these items.

Interest Expense, Net

The following table presents interest expense, net, by significant component:

	Three Months Ended June 30,				Six Months Ended June 30,
($ in millions)	2021		2020		2021		2020
Interest expense	$	2.5	$	2.3	$	4.9	$	4.7
Capitalized interest	(0.6)		(0.3)		(1.1)		(0.7)
Interest income	(0.2)		(0.2)		(0.3)		(1.0)
Interest expense, net	$	1.7	$	1.8	$	3.5	$	3.0

Interest expense, net, decreased by $0.1 million, or 5.6%, for the three months ended June 30, 2021, respectively, as compared to the same period in 2020, and increased by $0.5 million, or 16.7%, for the six months ended June 30, 2021, respectively, as compared to the same period in 2020.

Other Nonoperating (Income) Expense

Other nonoperating (income) expense changed by $1.2 million for the three months ended June 30, 2021, as compared to the same period in 2020, primarily due to a reduction in the pension settlement charge and by a decrease in U.S. pension interest cost. In each three month period, we determined that normal-course lump-sum payments for our U.S. qualified defined benefit pension plan exceeded the threshold for settlement accounting under U.S. GAAP for the year.

Other nonoperating (income) expense changed by $2.6 million for the six months ended June 30, 2021, as compared to the same period in 2020, primarily due to a reduction in the pension settlement charge and by a decrease in U.S. pension interest cost. In each six month period, we determined that normal-course lump-sum payments for our U.S. qualified defined benefit pension plan exceeded the threshold for settlement accounting under U.S. GAAP for the year.

Income Tax Expense

The provision for income taxes was $32.3 million and $16.0 million for the three months ended June 30, 2021 and 2020, respectively, and the effective tax rate was 15.3% and 15.6%, respectively. The decrease in the effective tax rate is primarily due to the release of a reserve related to withholding tax, offset partially by the mix in profit for the three months ended June 30, 2021 as compared to the same period in 2020.

35

The provision for income taxes was $61.0 million and $31.0 million for the six months ended June 30, 2021 and 2020, respectively, and the effective tax rate was 15.8% and 16.4%, respectively. The decrease in the effective tax rate is primarily due to the release of a reserve related to withholding tax and increase in stock-based compensation deduction, offset partially by the mix in profit for the six months ended June 30, 2021 as compared to the same period in 2020.

Equity in Net Income of Affiliated Companies

Equity in net income of affiliated companies represents the contribution to earnings from our 49% ownership interest in Daikyo, and our 49% ownership interest in five companies majority-owned by a long-time partner located in Mexico. Please refer to Note 7, Affiliated Companies, for further discussion. Equity in net income of affiliated companies increased by $3.4 million for the three months ended June 30, 2021, as compared to the same period in 2020, due to favorable operating results at Daikyo and the Mexico affiliates, partially offset by amortization expense related to our increase in ownership interest in Daikyo of $0.5 million.

Equity in net income of affiliated companies increased by $5.6 million for the six months ended June 30, 2021, as compared to the same period in 2020, due to favorable operating results at Daikyo and the Mexico affiliates, partially offset by amortization expense related to our increase in ownership interest in Daikyo of $1.0 million.

FINANCIAL CONDITION, LIQUIDITY AND CAPITAL RESOURCES

Cash Flows

The following table presents cash flow data for the six months ended June 30:

($ in millions)	2021		2020
Net cash provided by operating activities	$	233.1	$	205.2
Net cash used in investing activities	$	(110.4)	$	(72.8)
Net cash used in financing activities	$	(156.1)	$	(121.2)

Net Cash Provided by Operating Activities – Net cash provided by operating activities increased by $27.9 million for the six months ended June 30, 2021, as compared to the same period in 2020, primarily due to improved operating results, offset by increases in working capital and timing of tax payments in 2021.

Net Cash Used in Investing Activities – Net cash used in investing activities increased by $37.6 million for the six months ended June 30, 2021, as compared to the same period in 2020, due to the increase in capital expenditures in 2021 to meet customer demand.

Net Cash Used in Financing Activities – Net cash used in financing activities increased by $34.9 million for the six months ended June 30, 2021, as compared to the same period in 2020, primarily due to increases in purchases under our share repurchases.

36

Liquidity and Capital Resources

The table below presents selected liquidity and capital measures:

($ in millions)	June 30, 2021		December 31, 2020
Cash and cash equivalents	$	576.2	$	615.5
Accounts receivable, net	$	480.5	$	385.3
Inventories	$	345.2	$	321.3
Accounts payable	$	205.1	$	213.1
Debt	$	254.1	$	255.2
Equity	$	2,032.6	$	1,854.5
Working capital	$	1,004.4	$	870.3

Cash and cash equivalents include all instruments that have maturities of ninety days or less when purchased. Working capital is defined as current assets less current liabilities.

Cash and cash equivalents – Our cash and cash equivalents balance at June 30, 2021 consisted of cash held in depository accounts with banks around the world and cash invested in high-quality, short-term investments. The cash and cash equivalents balance at June 30, 2021 included $239.8 million of cash held by subsidiaries within the U.S., and $336.4 million of cash held by subsidiaries outside of the U.S. During the six months ended June 30, 2021, we purchased 479,000 shares of our common stock under the share repurchase program at a cost of $137.1 million, or an average price of $286.23 per share.

Working capital – Working capital at June 30, 2021 increased by $134.1 million, or 15.4%, as compared to December 31, 2020, which includes an unfavorable foreign currently translation impact $7.1 million. Excluding the impact of currency exchange rates, accounts receivable and inventories increased by $101.3 million and $28.3 million, respectively, while cash and cash equivalents and total current liabilities decreased by $33.4 million and $23.2 million, respectively. The increase in accounts receivable was due to increased sales activity. The increase in inventories that occurred in the period was to ensure we have sufficient inventory on hand to support the needs of our customers. The decrease in total current liabilities was primarily due to the annual incentive bonus payment made during the first quarter of 2021 and timing of tax payments.

Debt and credit facilities – The $1.1 million decrease in total debt at June 30, 2021, as compared to December 31, 2020, resulted from debt repayments under our Term Loan.

Our sources of liquidity include our Credit Facility. At June 30, 2021, we had no outstanding borrowings under the Credit Facility. At June 30, 2021, the borrowing capacity available under the Credit Facility, including outstanding letters of credit of $2.4 million, was $297.6 million. We do not expect any significant limitations on our ability to access this source of funds.

Pursuant to the financial covenants in our debt agreements, we are required to maintain established interest coverage ratios and to not exceed established leverage ratios. In addition, the agreements contain other customary covenants, none of which we consider restrictive to our operations. At June 30, 2021, we were in compliance with all of our debt covenants.

We believe that cash on hand and cash generated from operations, together with availability under our Credit Facility, will be adequate to address our foreseeable liquidity needs based on our current expectations of our business operations, capital expenditures and scheduled payments of debt obligations.

37

Commitments and Contractual Obligations

A table summarizing the amounts and estimated timing of future cash payments resulting from commitments and contractual obligations was provided in our 2020 Annual Report. During the three months ended June 30, 2021, there were no material changes outside of the ordinary course of business to our commitments and contractual obligations.

OFF-BALANCE SHEET ARRANGEMENTS

At June 30, 2021, we had no off-balance sheet financing arrangements other than unconditional purchase obligations incurred in the ordinary course of business and outstanding letters of credit related to various insurance programs, as noted in our 2020 Annual Report.

CRITICAL ACCOUNTING POLICIES AND ESTIMATES

There have been no changes to the Critical Accounting Policies and Estimates disclosed in Part II, Item 7 of our 2020 Annual Report.

NEW ACCOUNTING STANDARDS

For information on new accounting standards that were issued but not yet adopted, during the three months ended June 30, 2021, and the impact, if any, on our financial position or results of operations, see Note 2, New Accounting Standards.

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS

Our disclosure and analysis in this Form 10-Q contains some forward-looking statements that are based on management’s beliefs and assumptions, current expectations, estimates and forecasts. We also provide forward-looking statements in other materials we release to the public, as well as oral forward-looking statements. Such statements provide our current expectations or forecasts of future events. They do not relate strictly to historical or current facts. We have attempted, wherever possible, to identify forward-looking statements by using words such as “plan,” “expect,” “believe,” “intend,” “will,” “estimate,” “continue” and other words of similar meaning in conjunction with, among other things, discussions of future operations and financial performance, as well as our strategy for growth, product development, market position and expenditures. All statements that address operating performance or events or developments that we expect or anticipate will occur in the future - including statements relating to sales and earnings per share growth, cash flows or uses, and statements expressing views about future operating results - are forward-looking statements.

Forward-looking statements are based on current expectations of future events. The forward-looking statements are, and will be, based on management’s then-current views and assumptions regarding future events and operating performance, and speak only as of their dates. Investors should realize that, if underlying assumptions prove inaccurate or unknown risks or uncertainties materialize, actual results could vary materially from our expectations and projections. Investors are therefore cautioned not to place undue reliance on any forward-looking statements.

The following are some important factors that could cause our actual results to differ from our expectations in any forward-looking statements:

•sales demand and our ability to meet that demand;

•competition from other providers in our businesses, including customers’ in-house operations, and from lower-cost producers in emerging markets, which can impact unit volume, price and profitability;

•customers’ changing inventory requirements and manufacturing plans that alter existing orders or ordering patterns for the products we supply to them;

38

•interruptions or weaknesses in our supply chain, including from reasons beyond our control such as extreme weather, longer-term climate changes, natural disasters, pandemic, war, accidental damage, or unauthorized access to our or our customers’ information and systems, which could cause delivery delays or restrict the availability of raw materials, key purchased components and finished products;

•the timing, regulatory approval and commercial success of customer products that incorporate our products and systems;

•whether customers agree to incorporate our products and delivery systems with their new and existing drug products, the ultimate timing and successful commercialization of those products and systems, which involves substantial evaluations of the functional, operational, clinical and economic viability of our products, and the rate, timing and success of regulatory approval for the drug products that incorporate our components and systems;

•the timely and adequate availability of filling capacity, which is essential to conducting definitive stability trials and the timing of first commercialization of customers’ products in Crystal Zenith prefilled syringes;

•average profitability, or mix, of the products sold in any reporting period, including lower-than-expected sales growth of our high-value proprietary product offerings;

•maintaining or improving production efficiencies and overhead absorption;

•dependence on third-party suppliers and partners, some of which are single-source suppliers of critical materials and products, including our Japanese partner and affiliate, Daikyo;

•the loss of key personnel or highly-skilled employees;

•the availability and cost of skilled employees required to meet increased production, managerial, research and other needs, including professional employees and persons employed under collective bargaining agreements;

•the successful and timely implementation of price increases necessary to offset rising production costs, including raw material prices, particularly petroleum-based raw materials;

•the cost and progress of development, regulatory approval and marketing of new products;

•our ability to obtain and maintain licenses in any jurisdiction in which we do business;

•the relative strength of USD in relation to other currencies, particularly the Euro, SGD, the Danish Krone, Yen, Colombian Peso, Brazilian Real, and the South Korean Won; and

•the potential adverse effects of global healthcare legislation on customer demand, product pricing and profitability.

This list sets forth many, but not all, of the factors that could affect our ability to achieve results described in any forward-looking statements. Investors should understand that it is not possible to predict or identify all of the factors and should not consider this list to be a complete statement of all potential risks and uncertainties. For further discussion of these and other factors, see the risk factors disclosed in Part I, Item 1A of our 2020 Annual Report as well as Part II, section 1A of this quarterly report.

Except as required by law or regulation, we undertake no obligation to publicly update any forward-looking statements, whether as a result of new information, future events or otherwise.

39

ITEM 3.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

There have been no material changes in our exposure to market risk or the information provided in Part II, Item 7A of our 2020 Annual Report.

ITEM 4.  CONTROLS AND PROCEDURES

Disclosure controls are controls and procedures designed to reasonably ensure that information required to be disclosed in our reports filed under the Exchange Act, such as this quarterly report, is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms. Disclosure controls include, without limitation, controls and procedures designed to ensure that information required to be disclosed in our reports filed under the Securities Exchange Act of 1934, as amended, is accumulated and communicated to our management, including our Chief Executive Officer (“CEO”) and Chief Financial Officer (“CFO”), or persons performing similar functions, as appropriate, to allow timely decisions regarding required disclosure. Our disclosure controls include some, but not all, components of our internal control over financial reporting.

Evaluation of Disclosure Controls and Procedures

An evaluation was performed under the supervision and with the participation of our management, including our CEO and CFO, of the effectiveness of our disclosure controls and procedures (as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934), as of the end of the period covered by this quarterly report on Form 10-Q. Based on this evaluation, our CEO and CFO have concluded that, as of June 30, 2021, our disclosure controls and procedures are effective.

Changes in Internal Controls

During the quarter ended June 30, 2021, there have been no changes to our internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II.  OTHER INFORMATION

ITEM 1.  LEGAL PROCEEDINGS

None.

ITEM 1A.  RISK FACTORS

There are no material changes to the risk factors disclosed in Part I, Item 1A of our 2020 Annual Report.

ITEM 2.  UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

During the three months ended June 30, 2021, there were no purchases of our common stock made by us or any of our “affiliated purchasers” as defined in Rule 10b-18(a)(3) under the Exchange Act.

ITEM 6.  EXHIBITS

The list of exhibits in the Exhibit Index to this report is incorporated herein by reference.

40

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, West Pharmaceutical Services, Inc. has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

WEST PHARMACEUTICAL SERVICES, INC.

(Registrant)

By: /s/ Bernard J. Birkett

Bernard J. Birkett

Senior Vice President and Chief Financial Officer

July 30, 2021

41

EXHIBIT INDEX

Exhibit Number	Description
3.1	Our Amended and Restated Articles of Incorporation (incorporated by reference to Exhibit 3.1 to the Company's Form 10-Q report for the quarter ended June 30, 2020, filed July 24, 2020).
3.2	Our Bylaws, as amended through February 23, 2021 (incorporated by reference from our Form 8-k, filed March 1, 2021).
4.1	Form of stock certificate for common stock (incorporated by reference to Exhibit 4 to the Company's 1998 Form 10-K, filed May 6, 1999).
4.2	Article 5, 6, 8(c) and 9 of our Amended and Restated Articles of Incorporation (incorporated by reference to Exhibit 3.1 to the Company's Form 10-Q report for the quarter ended June 30, 2020, filed July 24, 2020).
4.3	Article I and V of our Bylaws, as amended through May 5, 2015 (incorporated by reference to Exhibit 3.2 to the Company's Form 10-Q report for the quarter ended March 31, 2015, filed May 6, 2015).
4.4 (1)	Instruments defining the rights of holders of long-term debt securities of West and its subsidiaries have been omitted.
10.10	Non-Qualified Deferred Compensation Plan for Designated Employees, as amended and restated effective January 1, 2020 (incorporated by reference to Exhibit 10.10 to the Company's Form 10-Q report for the quarter ended September 30, 2020, filed October 23, 2020).
10.36	2016 Omnibus Incentive Compensation Plan, as amended through May 4, 2021 (incorporated by reference from our Form 8-k, filed May 4, 2021).
31.1	Certification by the Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Certification by the Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1*	Certification by the Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2*	Certification by the Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS	The instance document does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document.
101.SCH	Inline XBRL Taxonomy Extension Schema Document
101.CAL	Inline XBRL Taxonomy Extension Calculation Linkbase Document
101.LAB	Inline XBRL Taxonomy Extension Label Linkbase Document
101.PRE	Inline XBRL Taxonomy Extension Presentation Linkbase Document
101.DEF	Inline XBRL Taxonomy Extension Definition Linkbase Document
104	Inline XBRL for the cover page of this Quarterly Report on Form 10-Q, included in the Exhibit 101 Inline XBRL Document Set.

(1) We agree to furnish to the SEC, upon request, a copy of each instrument with respect to issuances of long-term debt of the Company and its subsidiaries.

* Furnished, not filed.

F-1

EX-31.1

EXHIBIT 31.1

CERTIFICATION

I, Eric M. Green, certify that:

1.I have reviewed this quarterly report on Form 10-Q of West Pharmaceutical Services, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

/s/ Eric M. Green

Eric M. Green

President and Chief Executive Officer

Date: July 30, 2021

EX-31.2

EXHIBIT 31.2

CERTIFICATION

I, Bernard J. Birkett, certify that:

1.I have reviewed this quarterly report on Form 10-Q of West Pharmaceutical Services, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

/s/ Bernard J. Birkett

Bernard J. Birkett

Senior Vice President and Chief Financial Officer

Date: July 30, 2021

EX-32.1

EXHIBIT 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO SECTION 906 OF

THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of West Pharmaceutical Services, Inc. (the “Company”) for the period ended June 30, 2021, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Eric M. Green, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Eric M. Green

Eric M. Green

President and Chief Executive Officer

Date: July 30, 2021

EX-32.2

EXHIBIT 32.2

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO SECTION 906 OF

THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of West Pharmaceutical Services, Inc. (the “Company”) for the period ended June 30, 2021, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Bernard J. Birkett, Senior Vice President and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Bernard J. Birkett

Bernard J. Birkett

Senior Vice President and Chief Financial Officer

Date: July 30, 2021

XML

Cover Page - shares	6 Months Ended
	Jun. 30, 2021	Jul. 19, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
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Entity File Number	1-8036
Entity Registrant Name	WEST PHARMACEUTICAL SERVICES, INC.
Entity Incorporation, State or Country Code	PA
Entity Tax Identification Number	23-1210010
Entity Address, Address Line One	530 Herman O. West Drive
Entity Address, City or Town	Exton
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	19341-0645
City Area Code	610
Local Phone Number	594-2900
Title of each class	Common Stock, par value $0.25 per share
Trading Symbol	WST
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		73,979,087
Entity Central Index Key	0000105770
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Amendment Flag	false

XML

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Statement [Abstract]
Net sales	$ 723.6	$ 527.2	$ 1,394.3	$ 1,018.7
Cost of goods and services sold	408.5	332.1	807.3	656.6
Gross profit	315.1	195.1	587.0	362.1
Research and development	13.8	10.8	26.0	21.5
Selling, general and administrative expenses	92.7	77.7	172.9	149.5
Other expense (income) (Note 15)	(2.7)	3.0	1.2	(0.5)
Operating profit	211.3	103.6	386.9	191.6
Interest expense	1.9	2.0	3.8	4.0
Interest income	(0.2)	(0.2)	(0.3)	(1.0)
Other nonoperating (income) expense	(1.4)	(0.2)	(2.5)	0.1
Income before income taxes	211.0	102.0	385.9	188.5
Income tax expense	32.3	16.0	61.0	31.0
Equity in net income of affiliated companies	(8.6)	(5.2)	(13.6)	(8.0)
Net income	$ 187.3	$ 91.2	$ 338.5	$ 165.5
Net income per share:
Basic (in dollars per share)	$ 2.53	$ 1.24	$ 4.58	$ 2.24
Diluted (in dollars per share)	$ 2.47	$ 1.21	$ 4.47	$ 2.19
Weighted average shares outstanding:
Basic (in shares)	74.0	73.8	74.0	73.8
Diluted (in shares)	75.7	75.5	75.8	75.5

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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 187.3	$ 91.2	$ 338.5	$ 165.5
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	5.7	13.0	(22.7)	(34.3)
Defined benefit pension and other postretirement plan adjustments, net of tax of $0, $(1.7), $0.2, and $(1.1), respectively	0.1	(5.8)	0.7	(3.8)
Net (loss) gain on derivatives, net of tax of $0.8, $(1.5), $0 and $(0.2), respectively	1.2	(2.7)	(0.6)	(0.1)
Other comprehensive income (loss), net of tax	7.0	4.5	(22.6)	(38.2)
Comprehensive income	$ 194.3	$ 95.7	$ 315.9	$ 127.3

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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) (Parenthetical) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Comprehensive Income [Abstract]
Defined benefit pension and other postretirement plan adjustments, tax	$ 0.0	$ (1.7)	$ 0.2	$ (1.1)
Net gain (loss) on derivatives, tax	$ 0.8	$ (1.5)	$ 0.0	$ (0.2)

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CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 576.2	$ 615.5
Accounts receivable, net	480.5	385.3
Inventories	345.2	321.3
Other current assets	75.1	51.6
Total current assets	1,477.0	1,373.7
Property, plant and equipment	2,098.4	2,035.5
Less: accumulated depreciation and amortization	1,125.3	1,092.3
Property, plant and equipment, net	973.1	943.2
Operating lease right-of-use assets	62.8	68.3
Investments in affiliated companies	211.7	214.7
Goodwill	110.0	111.1
Intangible assets, net	27.8	30.5
Deferred income taxes	28.8	16.0
Pension and other postretirement benefits	16.0	12.9
Other noncurrent assets	26.3	23.4
Total Assets	2,933.5	2,793.8
Current liabilities:
Notes payable and other current debt	2.3	2.3
Accounts payable	205.1	213.1
Pension and other postretirement benefits	2.4	2.3
Accrued salaries, wages and benefits	87.7	106.0
Income taxes payable	17.7	26.0
Operating lease liabilities	9.3	10.1
Other current liabilities	148.1	143.6
Total current liabilities	472.6	503.4
Long-term debt	251.8	252.9
Deferred income taxes	12.2	10.4
Pension and other postretirement benefits	54.0	57.5
Operating lease liabilities	56.0	60.4
Deferred compensation benefits	24.7	22.9
Other long-term liabilities	29.6	31.8
Total Liabilities	900.9	939.3
Commitments and contingencies (Note 17)
Equity:
Preferred stock, 3.0 million shares authorized; 0 shares issued and outstanding	0.0	0.0
Common stock, par value $0.25 per share; 200.0 million shares authorized; shares issued: 75.3 million and 75.3 million; shares outstanding: 74.0 million and 74.0 million	18.8	18.8
Capital in excess of par value	248.0	267.3
Retained earnings	2,160.2	1,846.7
Accumulated other comprehensive loss	(133.2)	(110.6)
Treasury stock, at cost (1.3 million and 1.3 million shares)	(261.2)	(167.7)
Total Equity	2,032.6	1,854.5
Total Liabilities and Equity	$ 2,933.5	$ 2,793.8

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CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) - $ / shares	Jun. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Preferred stock, shares authorized (in shares)	3,000,000.0	3,000,000.0
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.25	$ 0.25
Common stock, shares authorized (in shares)	200,000,000.0	200,000,000.0
Common stock, shares issued (in shares)	75,300,000	75,300,000
Common stock, shares outstanding (in shares)	74,000,000.0	74,000,000.0
Treasury stock, at cost (in shares)	1,300,000	1,300,000

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash flows from operating activities:
Net income	$ 338.5	$ 165.5
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	55.7	50.1
Amortization	2.2	2.1
Stock-based compensation	16.2	17.7
Pension settlement charge	0.7	2.3
Contingent consideration payments in excess of acquisition-date liability	(0.8)	(0.3)
Other non-cash items, net	(10.9)	(4.9)
Changes in assets and liabilities	(168.5)	(27.3)
Net cash provided by operating activities	233.1	205.2
Cash flows from investing activities:
Capital expenditures	(111.6)	(69.2)
Purchase of intangibles	0.0	(3.8)
Other, net	1.2	0.2
Net cash used in investing activities	(110.4)	(72.8)
Cash flows from financing activities:
Repayments of long-term debt	(1.1)	(1.1)
Dividend payments	(25.2)	(23.6)
Proceeds from stock-based compensation awards	17.8	18.4
Employee stock purchase plan contributions	3.9	2.9
Shares purchased under share repurchase programs	(137.1)	(115.5)
Shares repurchased for employee tax withholdings	(14.4)	(2.3)
Net cash used in financing activities	(156.1)	(121.2)
Effect of exchange rates on cash	(5.9)	(4.4)
Net (decrease) increase in cash and cash equivalents	(39.3)	6.8
Cash, including cash equivalents at beginning of period	615.5	439.1
Cash, including cash equivalents at end of period	$ 576.2	$ 445.9

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Basis of Presentation and Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2021

Accounting Policies [Abstract]

Basis of Presentation and Summary of Significant Accounting Policies

Basis of Presentation and Summary of Significant Accounting Policies

Basis of Presentation: The condensed consolidated financial statements included in this report are unaudited and have been prepared in accordance with United States (“U.S.”) generally accepted accounting principles (“U.S. GAAP”) for interim financial reporting and U.S. Securities and Exchange Commission (“SEC”) regulations. The year-end condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by U.S. GAAP. Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with U.S. GAAP have been condensed or omitted. In the opinion of management, these financial statements include all adjustments, which are of a normal recurring nature, necessary for a fair statement of the financial position, results of operations, cash flows and the change in equity for the periods presented. The condensed consolidated financial statements for the three and six months ended June 30, 2021, should be read in conjunction with the consolidated financial statements and notes thereto of West Pharmaceutical Services, Inc. and its majority-owned subsidiaries (which may be referred to as “West”, the “Company”, “we”, “us” or “our”) appearing in our Annual Report on Form 10-K for the year ended December 31, 2020 (the “2020 Annual Report”). The results of operations for any interim period are not necessarily indicative of results for the full year.

West has been actively monitoring the novel coronavirus (“COVID-19”) situation and its impact globally. Throughout the COVID-19 pandemic, production facilities have continued to operate as they had prior to the pandemic, other than for enhanced safety measures intended to prevent the spread of the virus and higher levels of production at certain plant locations to meet additional customer demand. The remote working arrangements and travel restrictions imposed by various governments have had limited impact on our ability to maintain operations, as our manufacturing operations have generally been exempted from stay-at-home orders.

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New Accounting Standards

6 Months Ended

Jun. 30, 2021

Accounting Standards Update and Change in Accounting Principle [Abstract]

New Accounting Standards

New Accounting Standards

Standards Issued Not Yet Adopted

In March 2020, the FASB issued guidance which provides optional expedients and exceptions to address the impact of reference rate reform where contracts, hedging relationships and other transactions that reference the London Interbank Offered Rate (“LIBOR”) or another reference rate need to be discontinued. This guidance was effective upon issuance and generally can be applied through December 31, 2022. We are currently evaluating the impact to our financial statements, the transition, and disclosure requirements of this guidance.

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Revenue

6 Months Ended

Jun. 30, 2021

Revenue from Contract with Customer [Abstract]

Revenue

RevenueOur revenue results from the sale of goods or services and reflects the consideration to which we expect to be entitled in exchange for those goods or services. We record revenue based on a five-step model, in accordance with ASC Topic 606. Following the identification of a contract with a customer, we identify the performance obligations (goods or services) in the contract, determine the transaction price, allocate the transaction price to the performance obligations in the contract, and recognize the revenue when (or as) we satisfy the performance obligations by transferring the promised goods or services to our customers. A good or service is transferred when (or as) the customer obtains control of that good or service.

The following table presents the approximate percentage of our net sales by market group:

	Three Months Ended June 30,		Six Months Ended June 30,
	2021	2020	2021	2020
Biologics	41 %	28 %	40 %	28 %
Generics	16 %	21 %	17 %	20 %
Pharma	24 %	27 %	24 %	28 %
Contract-Manufactured Products	19 %	24 %	19 %	24 %
	100 %	100 %	100 %	100 %

The following table presents the approximate percentage of our net sales by product category:

	Three Months Ended June 30,		Six Months Ended June 30,
	2021	2020	2021	2020
High-Value Product Components	55 %	44 %	54 %	44 %
High-Value Product Delivery Devices	4 %	6 %	4 %	5 %
Standard Packaging	22 %	26 %	23 %	27 %
Contract-Manufactured Products	19 %	24 %	19 %	24 %
	100 %	100 %	100 %	100 %

The following table presents the approximate percentage of our net sales by geographic location:

	Three Months Ended June 30,		Six Months Ended June 30,
	2021	2020	2021	2020
Americas	43 %	50 %	45 %	49 %
Europe, Middle East, Africa	47 %	42 %	45 %	43 %
Asia Pacific	10 %	8 %	10 %	8 %
	100 %	100 %	100 %	100 %

Contract Assets and Liabilities

The following table summarizes our contract assets and liabilities, excluding contract assets included in accounts receivable, net:

	($ in millions)
Contract assets, December 31, 2020	$	10.9
Contract assets, June 30, 2021	10.1
Change in contract assets - increase (decrease)	$	(0.8)
Deferred income, December 31, 2020	$	(57.1)
Deferred income, June 30, 2021	(40.0)
Change in deferred income - decrease (increase)	$	17.1

Starting in the third quarter of 2020, the Company entered into new capacity reservation agreements, which include the receipt of up-front cash. The decrease in the deferred income balance is primarily due to the revenue recognition associated with the capacity reservation agreements, which is to be recognized over the next 1 to 2 years.

During the six months ended June 30, 2021, $28.4 million of revenue was recognized that was included in deferred income at the beginning of the year.

The majority of the performance obligations within our contracts are satisfied within one year or less. Performance obligations satisfied beyond one year include those relating to a nonrefundable customer payment of $20.0 million received in June 2013 in return for the exclusive use of the SmartDose® technology platform within a specific therapeutic area. As of June 30, 2021, there was $4.3 million of unearned income related to this payment, of which $0.9 million was included in other current liabilities and $3.4 million was included in other long-term liabilities. The unearned income is being recognized as income on a straight-line basis over the remaining term of the agreement. The agreement does not include a future minimum purchase commitment from the customer.

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Net Income Per Share

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Net Income Per Share

Net Income Per Share

The following table reconciles the shares used in the calculation of basic net income per share to those used for diluted net income per share:

	Three Months Ended June 30,				Six Months Ended June 30,
(in millions)	2021		2020		2021		2020
Net income	$	187.3	$	91.2	$	338.5	$	165.5
Weighted average common shares outstanding	74.0		73.8		74.0		73.8
Dilutive effect of equity awards, based on the treasury stock method	1.7		1.7		1.8		1.7
Weighted average shares assuming dilution	75.7		75.5		75.8		75.5

During the three months ended June 30, 2021 and 2020, there were 0.1 million and 0.2 million shares, respectively, from stock-based compensation plans not included in the computation of diluted net income per share because their impact was antidilutive. There were 0.1 million and 0.2 million antidilutive shares outstanding during the six months ended June 30, 2021 and 2020, respectively.

In December 2020, we announced a share repurchase program for calendar-year 2021 authorizing the repurchase of up to 631,000 shares of our common stock from time to time on the open market or in privately-negotiated transactions as permitted under Exchange Act Rule 10b-18. The number of shares to be repurchased and the timing of such transactions will depend on a variety of factors, including market conditions. There were no shares purchased during the three months ended June 30, 2021. During the six months ended June 30, 2021, we purchased 479,000 shares of our common stock under the program at a cost of $137.1 million, or an average price of $286.23 per share. This share repurchase program is expected to be completed by December 31, 2021.

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Inventories

6 Months Ended

Jun. 30, 2021

Inventory Disclosure [Abstract]

Inventories

Inventories

Inventories are valued at the lower of cost (on a first-in, first-out basis) and net realizable value. Inventory balances were as follows:

($ in millions)	June 30, 2021		December 31, 2020
Raw materials	$	130.2	$	133.5
Work in process	65.8		54.9
Finished goods	149.2		132.9
	$	345.2	$	321.3

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Leases

6 Months Ended

Jun. 30, 2021

Leases [Abstract]

Leases

Leases

A lease exists when a contract conveys to the customer the right to control the use of identified property, plant, or equipment for a period of time in exchange for consideration. The definition of a lease embodies two conditions: 1) there is an identified asset in the contract that is land or a depreciable asset (i.e., property, plant, and equipment); and 2) the customer has the right to control the use of the identified asset. Lease payments included in the measurement of the operating lease right-of-use assets and lease liabilities are comprised of fixed payments (including in-substance fixed payments), variable payments that depend on an index or rate, and the exercise price of a lessee option to purchase the underlying asset if the lessee is reasonably certain to exercise.

The components of lease expense were as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
($ in millions)	2021		2020		2021		2020
Operating lease cost	$	3.1	$	3.1	$	6.2	$	6.2
Short-term lease cost	0.3		0.1		0.5		0.3
Variable lease cost	1.4		0.8		2.2		1.6
Total lease cost	$	4.8	$	4.0	$	8.9	$	8.1

Supplemental cash flow information related to leases were as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
($ in millions)	2021		2020		2021		2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	3.1	$	3.2	$	6.3	$	6.4
Right-of-use assets obtained in exchange for new operating lease liabilities	$	0.3	$	1.8	$	0.8	$	4.3

As of June 30, 2021 and December 31, 2020, the weighted average remaining lease term for operating leases was 11.0 and 11.1 years, respectively.

As of June 30, 2021 and December 31, 2020, the weighted average discount rate was 3.66% and 3.68%, respectively.

Maturities of operating lease liabilities were as follows:

($ in millions)	June 30,		December 31,
Year	2021		2020
2021 (remaining period as of )	$	6.0	$	12.4
2022	10.5		10.4
2023	9.4		9.3
2024	8.7		8.7
2025	6.9		6.9
Thereafter	37.1		37.5
	78.6		85.2
Less: imputed lease interest	(13.3)		(14.7)
Total lease liabilities	$	65.3	$	70.5

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Affiliated Companies

6 Months Ended

Jun. 30, 2021

Equity Method Investments and Joint Ventures [Abstract]

Affiliated Companies

Affiliated Companies

At June 30, 2021 and December 31, 2020, the aggregate carrying amount of our investment in affiliated companies that are accounted for under the equity method was $203.1 million and $201.9 million, respectively, and the aggregate carrying amount of our investment in affiliated companies that are not accounted for under the equity method was $8.6 million and $12.8 million, respectively. We have elected to record these investments, for which fair value was not readily determinable, at cost, less impairment, adjusted for subsequent observable price changes. We test these investments for impairment whenever circumstances indicate that the carrying value of the investments may not be recoverable.

Our purchases from, and royalty payments made to, affiliates totaled $47.6 million and $85.6 million, respectively, for the three and six months ended June 30, 2021, as compared to $27.9 million and $60.4 million, respectively, for the same period in 2020. As of June 30, 2021 and December 31, 2020, the payable balance due to affiliates was $18.9 million and $33.6 million, respectively. The majority of these transactions related to a distributorship agreement with Daikyo that allows us to purchase and re-sell Daikyo products.

Sales to affiliates were $3.1 million and $6.0 million, respectively, for the three and six months ended June 30, 2021, as compared to $2.8 million and $5.0 million, respectively, for the same periods in 2020. As of June 30, 2021 and December 31, 2020, the receivable balance due from affiliates was $2.5 million and $1.4 million, respectively.

Please refer to Note 7, Affiliated Companies, to the consolidated financial statements in our 2020 Annual Report for additional details.

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Debt

6 Months Ended

Jun. 30, 2021

Debt Disclosure [Abstract]

Debt

Debt

The following table summarizes our long-term debt obligations, net of unamortized debt issuance costs and current maturities. The interest rates shown in parentheses are as of June 30, 2021.

($ in millions)	June 30, 2021		December 31, 2020
Term Loan, due December 31, 2024 (1.02%)	$	86.6	$	87.7
Series A notes, due July 5, 2022 (3.67%)	42.0		42.0
Series B notes, due July 5, 2024 (3.82%)	53.0		53.0
Series C notes, due July 5, 2027 (4.02%)	73.0		73.0
	254.6		255.7
Less: unamortized debt issuance costs	0.5		0.5
Total debt	254.1		255.2
Less: current portion of long-term debt	2.3		2.3
Long-term debt, net	$	251.8	$	252.9

Please refer to Note 8, Debt, to the consolidated financial statements in our 2020 Annual Report for additional details regarding our debt agreements.

Credit Agreement - Credit Facility

At June 30, 2021, the borrowing capacity available under our $300.0 million multi-currency revolving credit facility (the “Credit Facility”), including outstanding letters of credit of $2.4 million, was $297.6 million.

Credit Agreement Amendment - Term Loan

At June 30, 2021, we had $86.6 million in borrowings under the Term Loan, of which $2.3 million was classified as current and $84.3 million was classified as long-term. Please refer to Note 9, Derivative Financial Instruments, for a discussion of the foreign currency hedge associated with the Term Loan.

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Derivative Financial Instruments

6 Months Ended

Jun. 30, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments

Derivative Financial Instruments

Our ongoing business operations expose us to various risks, such as fluctuating interest rates, foreign currency exchange rates and increasing commodity prices. To manage these market risks, we periodically enter into derivative financial instruments, such as interest rate swaps, options and foreign exchange contracts for periods consistent with, and for notional amounts equal to or less than, the related underlying exposures. We do not purchase or hold any derivative financial instruments for investment or trading purposes. All derivatives are recorded in our condensed consolidated balance sheet at fair value.

Foreign Exchange Rate Risk

We have entered into forward exchange contracts, designated as fair value hedges, to manage our exposure to fluctuating foreign exchange rates on cross-currency intercompany loans. As of both June 30, 2021 and December 31, 2020, the total amount of these forward exchange contracts was Singapore Dollar (“SGD”) 601.5 million and $13.4 million.

In addition, we have entered into several foreign currency contracts, designated as cash flow hedges, for periods of up to eighteen months, intended to hedge the currency risk associated with a portion of our forecasted transactions denominated in foreign currencies. As of June 30, 2021, we had outstanding foreign currency contracts to purchase and sell certain pairs of currencies, as follows:

(in millions)		Sell
Currency	Purchase	USD	Euro
USD	38.7	—	32.6
Yen	8,568.0	35.5	38.0
SGD	47.8	28.6	5.8

In December 2019, we entered into a cross-currency swap for $90 million, which we designated as a hedge of our net investment in Daikyo. The notional amount of the cross-currency swap is ¥9.5 billion ($86.6 million) and the swap termination date is December 31, 2024. Under the cross-currency swap, we receive floating interest rate payments based on three-month U.S. Dollar (“USD”) LIBOR plus a margin, in return for paying floating interest rate payments based on three-month Japanese Yen (“Yen”) LIBOR plus a margin.

Commodity Price Risk

Many of our proprietary products are made from synthetic elastomers, which are derived from the petroleum refining process. We purchase the majority of our elastomers via long-term supply contracts, some of which contain clauses that provide for surcharges related to fluctuations in crude oil prices. The following economic hedges did not qualify for hedge accounting treatment since they did not meet the highly effective requirement at inception.

From November 2017 through June 2021, we purchased several series of call options for a total of 552,686 barrels of crude oil to mitigate our exposure to such oil-based surcharges and protect operating cash flows with regard to a portion of our forecasted elastomer purchases.

As of June 30, 2021, we had outstanding contracts to purchase 171,634 barrels of crude oil from July 2021 to December 2022, at a weighted-average strike price of $65.77 per barrel.

Effects of Derivative Instruments on Financial Position and Results of Operations

Please refer to Note 10, Fair Value Measurements, for the balance sheet location and fair values of our derivative instruments as of June 30, 2021 and December 31, 2020.

The following table summarizes the effects of derivative instruments designated as fair value hedges on the condensed consolidated statements of income:

	Amount of (Gain) Loss Recognized in Income for the				Amount of (Gain) Loss Recognized in Income for the
	Three Months Ended June 30,				Six Months Ended June 30,				Location on Statement of Income
($ in millions)	2021		2020		2021		2020
Fair Value Hedges:
Hedged item (intercompany loan)	$	4.8	$	(1.2)	$	(5.1)	$	15.9	Other expense (income)
Derivative designated as hedging instrument	(4.8)		1.2		5.1		(15.9)		Other expense (income)
Amount excluded from effectiveness testing	(0.6)		(2.0)		(1.2)		(3.9)		Other expense (income)
Total	$	(0.6)	$	(2.0)	$	(1.2)	$	(3.9)

We recognize in earnings the initial value of forward point components on a straight-line basis over the life of the fair value hedge. The amounts recognized in earnings, pre-tax, for forward point components for the three and six months ended June 30, 2021 and 2020 were $0.6 million, $1.2 million, and $1.7 million, $3.7 million, respectively.

The following tables summarize the effects of derivative instruments designated as fair value, cash flow, and net investment hedges on other comprehensive income (“OCI”) and earnings, net of tax:

	Amount of Gain (Loss) Recognized in OCI for the				Amount of (Gain) Loss Reclassified from Accumulated OCI into Income for the				Location of (Gain) Loss Reclassified from Accumulated OCI into Income
	Three Months Ended June 30,				Three Months Ended June 30,
($ in millions)	2021		2020		2021		2020
Fair Value Hedges
Foreign currency hedge contracts	$	0.2	$	(0.7)	$	0.4	$	(1.3)	Other expense (income)
Total	$	0.2	$	(0.7)	$	0.4	$	(1.3)
Cash Flow Hedges:
Foreign currency hedge contracts	$	(0.4)	$	0.4	$	0.5	$	(0.3)	Net sales
Foreign currency hedge contracts	(0.9)		(0.7)		1.5		(0.2)		Cost of goods and services sold
Forward treasury locks	—		—		—		0.1		Interest expense
Total	$	(1.3)	$	(0.3)	$	2.0	$	(0.4)
Net Investment Hedges:
Cross-currency swap	$	0.4	$	0.6	$	—	$	—	Other expense (income)
Total	$	0.4	$	0.6	$	—	$	—

	Amount of Gain (Loss) Recognized in OCI for the				Amount of (Gain) Loss Reclassified from Accumulated OCI into Income for the				Location of (Gain) Loss Reclassified from Accumulated OCI into Income
	Six Months Ended June 30,				Six Months Ended June 30,
($ in millions)	2021		2020		2021		2020
Fair Value Hedges
Foreign currency hedge contracts	$	(0.4)	$	2.9	$	0.8	$	(2.6)	Other expense (income)
Total	$	(0.4)	$	2.9	$	0.8	$	(2.6)
Cash Flow Hedges:
Foreign currency hedge contracts	$	(0.7)	$	0.5	$	0.9	$	(0.5)	Net sales
Foreign currency hedge contracts	(2.8)		(0.3)		1.5		(0.2)		Cost of goods and services sold
Forward treasury locks	—		—		0.1		0.1		Interest expense
Total	$	(3.5)	$	0.2	$	2.5	$	(0.6)
Net Investment Hedges:
Cross-currency swap	$	5.4	$	(0.6)	$	—	$	—	Other expense (income)
Total	$	5.4	$	(0.6)	$	—	$	—

The following table summarizes the effects of derivative instruments designated as fair value, cash flow, and net investment hedges by line item in our condensed consolidated statements of income:

	Three Months Ended June 30,				Six Months Ended June 30,
($ in millions)	2021		2020		2021		2020
Net sales	$	0.5	$	(0.3)	$	0.9	$	(0.5)
Cost of goods and services sold	1.5		(0.2)		1.5		(0.2)
Interest expense	—		0.1		0.1		0.1
Other expense (income)	0.4		(1.3)		0.8		(2.6)

The following table summarizes the effects of derivative instruments not designated as hedges on the condensed consolidated statements of income:

	Amount of Gain (Loss) Recognized in Income for the				Amount of Gain (Loss) Recognized in Income for the
	Three Months Ended June 30,				Six Months Ended June 30,				Location on Statement of Income
($ in millions)	2021		2020		2021		2020
Commodity call options	$	0.7	$	—	$	1.1	$	(0.2)	Other expense (income)
Total	$	0.7	$	—	$	1.1	$	(0.2)

For the three and six months ended June 30, 2021 and 2020, there was no material ineffectiveness related to our hedges.

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Fair Value Measurements

6 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair Value Measurements

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The following fair value hierarchy classifies the inputs to valuation techniques used to measure fair value into one of three levels:

•Level 1: Unadjusted quoted prices in active markets for identical assets or liabilities.

•Level 2: Inputs other than quoted prices that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active.

•Level 3: Unobservable inputs that reflect the reporting entity’s own assumptions.

The following tables present the assets and liabilities recorded at fair value on a recurring basis:

	Balance at		Basis of Fair Value Measurements
($ in millions)	June 30, 2021		Level 1		Level 2		Level 3
Assets:
Deferred compensation assets	$	14.6	$	14.6	$	—	$	—
Foreign currency contracts	7.0		—		7.0		—
Cross-currency swap	1.4		—		1.4		—
Commodity call options	1.7		—		1.7		—
	$	24.7	$	14.6	$	10.1	$	—
Liabilities:
Contingent consideration	$	3.6	$	—	$	—	$	3.6
Deferred compensation liabilities	15.5		15.5		—		—
Foreign currency contracts	3.6		—		3.6		—
	$	22.7	$	15.5	$	3.6	$	3.6

	Balance at		Basis of Fair Value Measurements
($ in millions)	December 31, 2020		Level 1		Level 2		Level 3
Assets:
Deferred compensation assets	$	12.8	$	12.8	$	—	$	—
Foreign currency contracts	3.0		—		3.0		—
Commodity call options	0.3				0.3
	$	16.1	$	12.8	$	3.3	$	—
Liabilities:
Contingent consideration	$	3.6	$	—	$	—	$	3.6
Deferred compensation liabilities	14.5		14.5		—		—
Cross-currency swap	5.6		—		5.6		—
Foreign currency contracts	9.7		—		9.7		—
	$	33.4	$	14.5	$	15.3	$	3.6

Deferred compensation assets are included within other noncurrent assets and are valued using a market approach based on quoted market prices in an active market. The fair value of our foreign currency contracts, included within other current and other noncurrent assets, as well as other current and other long-term liabilities, is valued using an income approach based on quoted forward foreign exchange rates and spot rates at the reporting date. The fair value of our commodity call options, included within other current and other noncurrent assets, is valued using a market approach. The fair value of our contingent consideration, included within other current and other long-term liabilities, is discussed further in the section related to Level 3 fair value measurements. The fair value of deferred compensation liabilities is based on quoted prices of the underlying employees’ investment selections and is included within other long-term liabilities. The fair value of the cross-currency swap, included within other non-current assets, is valued using a market approach. Please refer to Note 9, Derivative Financial Instruments, for further discussion of our derivatives. All derivatives are recognized on a gross basis as either assets or liabilities in the balance sheet.

Level 3 Fair Value Measurements

The fair value of the contingent consideration liability related to the SmartDose technology platform (the “SmartDose contingent consideration”) was initially determined using a probability-weighted income approach, and is revalued at each reporting date or more frequently if circumstances dictate. Changes in the fair value of this obligation are recorded as income or expense within other expense (income) in our condensed consolidated statements of income. The significant unobservable inputs used in the fair value measurement of the SmartDose contingent consideration are the sales projections, the probability of success factors, and the discount rate. Significant increases or decreases in any of those inputs in isolation would result in a significantly lower or higher fair value measurement. Sales projections were derived using upside, base and downside forecasted cases for each partnership and applying probability-weighted scenarios of 10%, 50% and 40% to the three cases, respectively, to reflect the likelihood of West meeting the estimated sales projection targets. The probability of success factors included the probabilities of successful FDA approval for each partnership drug, which was estimated in a range of 19% to 100% based on the development phase of each respective drug, and the probability of the successful execution of supply agreements with each partnership, which was estimated in the range of 25% to 100% based on historical, current, and future supply agreements with the respective partnerships. The fair value of this liability utilized a risk-adjusted discount rate of 19% to present value the cash flows. The discount rate is calculated by determining the after-tax required returns on debt and equity and weighting each return by the respective percent of debt and equity to total capital. Key inputs for the discount rate include the risk-free rate on the 20-Year United States Treasury maturity, equity risk premium, company-specific risk premium, pre-tax cost of debt, and U.S. tax rate, among others. As development and commercialization of the SmartDose technology platform progresses, we may need to update the sales projections, the probability of success factors, and the discount rate used. This could result in an increase or decrease to the SmartDose contingent consideration.

The following table provides a summary of changes in our Level 3 fair value measurements:

	($ in millions)
Balance, December 31, 2019	$	3.3
Increase in fair value recorded in earnings	1.2
Payments	(0.9)
Balance, December 31, 2020	3.6
Increase in fair value recorded in earnings	0.8
Payments	(0.8)
Balance, June 30, 2021	$	3.6

Other Financial Instruments

We believe that the carrying amounts of our cash and cash equivalents and accounts receivable approximate their fair values due to their near-term maturities.

The estimated fair value of long-term debt is based on quoted market prices for debt issuances with similar terms and maturities and is classified as Level 2 within the fair value hierarchy. At June 30, 2021, the estimated fair value of long-term debt was $263.9 million compared to a carrying amount of $251.8 million. At December 31, 2020, the estimated fair value of long-term debt was $265.7 million and the carrying amount was $252.9 million.

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Accumulated Other Comprehensive Loss

6 Months Ended

Jun. 30, 2021

Equity [Abstract]

Accumulated Other Comprehensive Loss

Accumulated Other Comprehensive Loss

The following table presents the changes in the components of accumulated other comprehensive income ("AOCI") (loss), net of tax, for the six months ended June 30, 2021:

($ in millions)	(Losses) gains on derivatives		Change in equity affiliate investment AOCI		Defined benefit pension and other postretirement plans		Foreign currency translation		Total
Balance, December 31, 2020	$	(1.9)	$	0.6	$	(40.5)	$	(68.8)	$	(110.6)
Other comprehensive income (loss) before reclassifications	(3.9)		—		0.1		(22.7)		(26.5)
Amounts reclassified out from accumulated other comprehensive income (loss)	3.3		—		0.6		—		3.9
Other comprehensive income (loss), net of tax	(0.6)		—		0.7		(22.7)		(22.6)
Balance, June 30, 2021	$	(2.5)	$	0.6	$	(39.8)	$	(91.5)	$	(133.2)

A summary of the reclassifications out of accumulated other comprehensive loss is presented in the following table:

($ in millions)	Three Months Ended June 30,				Six Months Ended June 30,				Location on Statement of Income
Detail of components	2021		2020		2021		2020
Gains (losses) on derivatives:
Foreign currency contracts	$	(0.5)	$	0.3	$	(1.0)	$	0.6	Net sales
Foreign currency contracts	(2.3)		0.3		(2.3)		0.4		Cost of goods and services sold
Foreign currency contracts	(0.6)		2.0		(1.2)		4.0		Other expense (income)
Forward treasury locks	(0.1)		(0.1)		(0.2)		(0.2)		Interest expense
Total before tax	(3.5)		2.5		(4.7)		4.8
Tax benefit (expense)	1.2		(0.8)		1.4		(1.6)
Net of tax	$	(2.3)	$	1.7	$	(3.3)	$	3.2
Amortization of defined benefit pension and other postretirement plans:
Prior service credit	$	—	$	0.1	$	0.1	$	0.3	(a)
Actuarial losses	(0.1)		(0.1)		(0.2)		(0.2)		(a)
Settlements	(0.1)		(0.9)		(0.7)		(2.3)		(a)
Total before tax	(0.2)		(0.9)		(0.8)		(2.2)
Tax benefit (expense)	0.1		0.3		0.2		0.6
Net of tax	$	(0.1)	$	(0.6)	$	(0.6)	$	(1.6)
Total reclassifications for the period, net of tax	$	(2.4)	$	1.1	$	(3.9)	$	1.6

(a) These components are included in the computation of net periodic benefit cost. Please refer to Note 14, Benefit Plans, for additional details.

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Shareholders' Equity

6 Months Ended

Jun. 30, 2021

Equity [Abstract]

Shareholders' Equity

Shareholders’ Equity

The following table presents the changes in shareholders’ equity for the six months ended June 30, 2021:

	Common Shares Issued	Common Stock		Capital in Excess of Par Value		Number of Treasury Shares	Treasury Stock		Retained earnings		Accumulated other comprehensive loss		Total
(in millions)
Balance, December 31, 2020	75.3	$	18.8	$	267.3	1.3	$	(167.7)	$	1,846.7	$	(110.6)	$	1,854.5
Net income	—	—		—		—	—		151.2		—		151.2
Activity related to stock-based compensation	—	—		(20.6)		(0.3)	23.1		—		—		2.5
Shares purchased under share repurchase program	—	—		—		0.5	(137.1)		—		—		(137.1)
Dividends declared ($0.17 per share)	—	—		—		—	—		(12.5)		—		(12.5)
Other comprehensive loss, net of tax	—	—		—		—	—		—		(29.6)		(29.6)
Balance, March 31, 2021	75.3	$	18.8	$	246.7	1.5	$	(281.7)	$	1,985.4	$	(140.2)	$	1,829.0
Net income	—	—		—		—	—		187.3		—		187.3
Activity related to stock-based compensation	—	—		1.3		(0.2)	20.5		—		—		21.8
Dividends declared ($0.17 per share)	—	—		—		—	—		(12.5)		—		(12.5)
Other comprehensive income, net of tax	—	—		—		—	—		—		7.0		7.0
Balance, June 30, 2021	75.3	$	18.8	$	248.0	1.3	$	(261.2)	$	2,160.2	$	(133.2)	$	2,032.6

The following table presents the changes in shareholders’ equity for the six months ended June 30, 2020:

	Common Shares Issued	Common Stock		Capital in Excess of Par Value		Number of Treasury Shares	Treasury Stock		Retained earnings		Accumulated other comprehensive loss		Total
(in millions)
Balance, December 31, 2019	75.3	$	18.8	$	272.7	1.2	$	(118.1)	$	1,549.4	$	(149.6)	$	1,573.2
Effect of modified retrospective application of a new accounting standard	—	—		—		—	—		(0.1)		—		(0.1)
Net income	—	—		—		—	—		74.3		—		74.3
Activity related to stock-based compensation	—	—		(5.1)		(0.3)	17.9		—		—		12.8
Shares purchased under share repurchase program	—	—		—		0.8	(115.5)		—		—		(115.5)
Dividends declared ($0.16 per share)	—	—		—		—	—		(11.8)		—		(11.8)
Other comprehensive loss, net of tax	—	—		—		—	—		—		(42.7)		(42.7)
Balance, March 31, 2020	75.3	$	18.8	$	267.6	1.7	$	(215.7)	$	1,611.8	$	(192.3)	$	1,490.2
Net income	—	—		—		—	—		91.2		—		91.2
Activity related to stock-based compensation	—	—		(4.5)		(0.2)	24.9		—		—		20.4
Other comprehensive income, net of tax	—	—		—		—	—		—		4.5		4.5
Balance, June 30, 2020	75.3	$	18.8	$	263.1	1.5	$	(190.8)	$	1,703.0	$	(187.8)	$	1,606.3

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Stock-Based Compensation

6 Months Ended

Jun. 30, 2021

Share-based Payment Arrangement [Abstract]

Stock-Based Compensation

Stock-Based Compensation

The West Pharmaceutical Services, Inc. 2016 Omnibus Incentive Compensation Plan (the “2016 Plan”) provides for the granting of stock options, stock appreciation rights, restricted stock awards and performance awards to employees and non-employee directors. A committee of the Board of Directors determines the terms and conditions of awards to be granted. Vesting requirements vary by award. At June 30, 2021, there were 2,484,562 shares remaining in the 2016 Plan for future grants.

During the six months ended June 30, 2021, we granted 157,416 stock options at a weighted average exercise price of $275.02 per share based on the grant-date fair value of our stock to employees under the 2016 Plan. The weighted average grant date fair value of options granted was $63.19 per share as determined by the Black-Scholes option valuation model using the following weighted average assumptions: a risk-free interest rate of 0.7%; expected life of 5.6 years based on prior experience; stock volatility of 23.9% based on historical data; and a dividend yield of 0.3%. Stock option expense is recognized over the vesting period, net of forfeitures.

During the six months ended June 30, 2021, we granted 36,174 stock-settled performance share unit (“PSU”) awards at a weighted average grant-date fair value of $329.88 per share to eligible employees. These awards are earned based on the Company’s performance against pre-established targets, including annual growth rate of revenue and return on invested capital, over a specified performance period. Depending on the achievement of the targets, recipients of stock-settled PSU awards are entitled to receive a certain number of shares of common stock. Shares earned under PSU awards may vary from 0% to 200% of an employee’s targeted award. The fair value of stock-settled PSU awards is based on the market price of our stock at the grant date and is recognized as expense over the performance period, adjusted for estimated target outcomes and net of forfeitures.

During the six months ended June 30, 2021, we granted 4,637 stock-settled restricted share unit (“RSU”) awards at a weighted average grant-date fair value of $279.92 per share to eligible employees. These awards are earned over a specified performance period. The fair value of stock-settled RSU awards is based on the market price of our stock at the grant date and is recognized as expense over the vesting period, net of forfeitures.

Stock-based compensation expense was $10.3 million and $16.2 million for the three and six months ended June 30, 2021, respectively. For the three and six months ended June 30, 2020, stock-based compensation expense was $12.3 million and $17.7 million, respectively.

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Benefit Plans

6 Months Ended

Jun. 30, 2021

Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]

Benefit Plans

Benefit Plans

The components of net periodic benefit cost for the three months ended June 30 were as follows:

	Pension benefits				Other retirement benefits				Total
($ in millions)	2021		2020		2021		2020		2021		2020
Service cost	$	0.4	$	0.3	$	—	$	—	$	0.4	$	0.3
Interest cost	1.5		1.9		—		—		1.5		1.9
Expected return on assets	(3.0)		(3.0)		—		—		(3.0)		(3.0)
Amortization of prior service credit	0.1		—		(0.1)		(0.1)		—		(0.1)
Recognized actuarial losses (gains)	0.5		0.5		(0.4)		(0.4)		0.1		0.1
Settlements	0.1		0.9		—		—		0.1		0.9
Net periodic benefit cost	$	(0.4)	$	0.6	$	(0.5)	$	(0.5)	$	(0.9)	$	0.1

	Pension benefits				Other retirement benefits				Total
($ in millions)	2021		2020		2021		2020		2021		2020
U.S. plans	$	(1.0)	$	0.2	$	(0.5)	$	(0.5)	$	(1.5)	$	(0.3)
International plans	0.6		0.4		—		—		0.6		0.4
Net periodic benefit cost	$	(0.4)	$	0.6	$	(0.5)	$	(0.5)	$	(0.9)	$	0.1

The components of net periodic benefit cost for the six months ended June 30 were as follows:

	Pension benefits				Other retirement benefits				Total
($ in millions)	2021		2020		2021		2020		2021		2020
Service cost	$	0.8	$	0.6	$	—	$	—	$	0.8	$	0.6
Interest cost	2.9		3.9		0.1		0.1		3.0		4.0
Expected return on assets	(6.1)		(6.0)		—		—		(6.1)		(6.0)
Amortization of prior service credit	0.1		—		(0.2)		(0.3)		(0.1)		(0.3)
Recognized actuarial losses (gains)	1.0		1.0		(0.8)		(0.8)		0.2		0.2
Settlements	0.7		2.3		—		—		0.7		2.3
Net periodic benefit cost	$	(0.6)	$	1.8	$	(0.9)	$	(1.0)	$	(1.5)	$	0.8

	Pension benefits				Other retirement benefits				Total
($ in millions)	2021		2020		2021		2020		2021		2020
U.S. plans	$	(1.6)	$	1.1	$	(0.9)	$	(1.0)	$	(2.5)	$	0.1
International plans	1.0		0.7		—		—		1.0		0.7
Net periodic benefit cost	$	(0.6)	$	1.8	$	(0.9)	$	(1.0)	$	(1.5)	$	0.8

During the three and six months ended June 30, 2021, we recorded a $0.1 million and $0.7 million pension settlement charge, respectively, within other nonoperating (income) expense, as we determined that normal-course lump-sum payments for our U.S. qualified defined benefit pension plan exceeded the threshold for settlement accounting under U.S. GAAP for the year.

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Other Expense (Income)

6 Months Ended

Jun. 30, 2021

Other Income and Expenses [Abstract]

Other Expense (Income)

Other Expense (Income)

Other expense (income) consists of:

	Three Months Ended June 30,				Six Months Ended June 30,
($ in millions)	2021		2020		2021		2020
Restructuring and related charges	$	1.0	$	—	$	2.2	$	—
Fixed asset impairments and loss (gain) on sale of equipment	0.2		6.3		0.3		6.5
Contingent consideration	0.2		0.1		0.9		0.1
Foreign exchange transaction gains	(2.6)		(2.0)		(2.9)		(5.5)
Other items	(1.5)		(1.4)		0.7		(1.6)
Total other expense (income)	$	(2.7)	$	3.0	$	1.2	$	(0.5)

Restructuring and Related Charges

In July 2020, our Board of Directors approved a restructuring plan designed to optimize certain organizational structures within the Company to better support our continued growth and business priorities. These changes are expected to be implemented over a period of up to twenty-four months from the date of approval. The plan is expected to require restructuring and related charges of approximately $15 million to $17 million. Since its approval, we recorded a net pre-tax amount equal to $6.8 million in restructuring and related charges associated with this plan.

The following table presents activity related to our restructuring obligations related to our 2020 restructuring plan:

($ in millions)	Severance and benefits		Asset-related charges		Other charges		Total
Balance, December 31, 2020	$	4.6	$	—	$	—	$	4.6
Charges	1.0		—		1.2		2.2
Cash payments	(1.1)		—		(0.5)		(1.6)
Balance, June 30, 2021	$	4.5	$	—	$	0.7	$	5.2

In February 2018, our Board of Directors approved a restructuring plan designed to realign our manufacturing capacity with demand. These changes were expected to be implemented over a period of up to twenty-four months from the date of approval. The plan was expected to require restructuring and related charges of approximately $16 million. Since its approval, we have recorded $13.7 million in restructuring and related charges associated with this plan. The plan is now considered complete.

The following table presents activity related to our restructuring obligations related to our 2018 restructuring plan:

($ in millions)	Severance and benefits		Total
Balance, December 31, 2020	$	0.1	$	0.1
Cash payments	(0.1)		(0.1)
Balance, June 30, 2021	$	—	$	—

Contingent Consideration

Contingent consideration represents changes in the fair value of the SmartDose contingent consideration. Please refer to Note 10, Fair Value Measurements, for additional details.

Other Items

During the six months ended June 30, 2021, we recorded an impairment charge of $2.2 million for one of the Company's cost investments.

During the three and six months ended June 30, 2021, we recorded a net gain of $1.3 million on the sale of one of the Company's cost investments.

During both the three and six months ended June 30, 2021 and 2020, we recorded development income of $0.2 million and $0.4 million, respectively, related to a nonrefundable customer payment of $20.0 million received in June 2013 in return for the exclusive use of the SmartDose technology platform within a specific therapeutic area. Please refer to Note 3, Revenue, for additional information.

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Income Taxes	6 Months Ended
	Jun. 30, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Income TaxesThe tax provision for interim periods is determined using the estimated annual effective consolidated tax rate, based on the current estimate of full-year earnings before taxes, adjusted for the impact of discrete quarterly items.The provision for income taxes was $32.3 million and $16.0 million for the three months ended June 30, 2021 and 2020, respectively, and the effective tax rate was 15.3% and 15.6%, respectively. The provision for income taxes was $61.0 million and $31.0 million for the six months ended June 30, 2021 and 2020, respectively, and the effective tax rate was 15.8% and 16.4%, respectively.

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2021

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

From time to time, we are involved in product liability matters and other legal proceedings and claims generally incidental to our normal business activities. We accrue for loss contingencies when it is probable that a liability has been incurred and the amount of the loss can be reasonably estimated. While the outcome of current proceedings cannot be accurately predicted, we believe their ultimate resolution should not have a material adverse effect on our business, financial condition, results of operations or liquidity.

There have been no significant changes to the commitments and contingencies included in our 2020 Annual Report.

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Segment Information

6 Months Ended

Jun. 30, 2021

Segment Reporting [Abstract]

Segment Information

Segment InformationOur business operations are organized into two reportable segments, Proprietary Products and Contract-Manufactured Products. Our Proprietary Products reportable segment offers proprietary packaging, containment and drug delivery products, along with analytical lab services and other integrated services and solutions, primarily to biologic, generic and pharmaceutical drug customers. Our Contract-Manufactured Products reportable segment serves as a fully integrated business, focused on the design, manufacture, and automated assembly of complex devices, primarily for pharmaceutical, diagnostic, and medical device customers.

The Chief Operating Decision Maker ("CODM") evaluates the performance of our segments based upon, among other things, segment net sales and operating profit. Segment operating profit excludes general corporate costs, which include executive and director compensation, stock-based compensation, certain pension and other retirement benefit costs, and other corporate facilities and administrative expenses not allocated to the segments. Also excluded are items that the CODM considers not representative of ongoing operations. Such items are referred to as other unallocated items and generally include restructuring and related charges, certain asset impairments and other specifically-identified income or expense items. The segment operating profit metric is what the CODM uses in evaluating our results of operations and the financial measure that provides a valuable insight into our overall performance and financial position.

The following table presents information about our reportable segments, reconciled to consolidated totals:

	Three Months Ended June 30,				Six Months Ended June 30,
($ in millions)	2021		2020		2021		2020
Net sales:
Proprietary Products	$	587.3	$	399.5	$	1,131.0	$	773.0
Contract-Manufactured Products	136.4		127.8		263.5		245.9
Intersegment sales elimination	(0.1)		(0.1)		(0.2)		(0.2)
Consolidated net sales	$	723.6	$	527.2	$	1,394.3	$	1,018.7

The intersegment sales elimination, which is required for the presentation of consolidated net sales, represents the elimination of components sold between our segments.

The following table provides summarized financial information for our segments:

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Operating profit (loss):
Proprietary Products	$	216.2	$	112.2	$	398.8	$	205.4
Contract-Manufactured Products	18.7		20.5		35.1		33.3
Total business and segment operating profit	$	234.9	$	132.7	$	433.9	$	238.7
Corporate and Unallocated
Stock-based compensation expense	$	(10.3)	$	(12.3)	$	(16.2)	$	(17.7)
Corporate general costs (1)	(13.4)		(14.4)		(27.3)		(27.0)
Unallocated Items:
Restructuring and severance related charges	(1.0)		(2.2)		(2.2)		(2.2)
Amortization of Acquisition-related Intangible Assets (2)	(0.2)		(0.2)		(0.4)		(0.2)
Cost investment activity	1.3		—		(0.9)		—
Total Corporate and Unallocated	(23.6)		(29.1)		(47.0)		(47.1)
Total consolidated operating profit	$	211.3	$	103.6	$	386.9	$	191.6
Other expense, net	0.3		1.6		1.0		3.1
Income before income taxes	$	211.0	$	102.0	$	385.9	$	188.5

(1) Corporate general costs includes executive and director compensation, certain pension and other retirement benefit costs, and other corporate facilities and administrative expenses not allocated to the segments.

(2) During the three and six months ended June 30, 2021, the Company recorded $0.2 million and $0.4 million, respectively, of amortization expense within operating profit associated with an intangible asset acquired during the second quarter of 2020.

Please refer to Note 15, Other Expense (Income), for further discussion of these items.

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Basis of Presentation and Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2021

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation: The condensed consolidated financial statements included in this report are unaudited and have been prepared in accordance with United States (“U.S.”) generally accepted accounting principles (“U.S. GAAP”) for interim financial reporting and U.S. Securities and Exchange Commission (“SEC”) regulations. The year-end condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by U.S. GAAP. Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with U.S. GAAP have been condensed or omitted. In the opinion of management, these financial statements include all adjustments, which are of a normal recurring nature, necessary for a fair statement of the financial position, results of operations, cash flows and the change in equity for the periods presented. The condensed consolidated financial statements for the three and six months ended June 30, 2021, should be read in conjunction with the consolidated financial statements and notes thereto of West Pharmaceutical Services, Inc. and its majority-owned subsidiaries (which may be referred to as “West”, the “Company”, “we”, “us” or “our”) appearing in our Annual Report on Form 10-K for the year ended December 31, 2020 (the “2020 Annual Report”). The results of operations for any interim period are not necessarily indicative of results for the full year.

West has been actively monitoring the novel coronavirus (“COVID-19”) situation and its impact globally. Throughout the COVID-19 pandemic, production facilities have continued to operate as they had prior to the pandemic, other than for enhanced safety measures intended to prevent the spread of the virus and higher levels of production at certain plant locations to meet additional customer demand. The remote working arrangements and travel restrictions imposed by various governments have had limited impact on our ability to maintain operations, as our manufacturing operations have generally been exempted from stay-at-home orders.

New Accounting Standards

Standards Issued Not Yet Adopted

In March 2020, the FASB issued guidance which provides optional expedients and exceptions to address the impact of reference rate reform where contracts, hedging relationships and other transactions that reference the London Interbank Offered Rate (“LIBOR”) or another reference rate need to be discontinued. This guidance was effective upon issuance and generally can be applied through December 31, 2022. We are currently evaluating the impact to our financial statements, the transition, and disclosure requirements of this guidance.

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Revenue (Tables)

6 Months Ended

Jun. 30, 2021

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenue

The following table presents the approximate percentage of our net sales by market group:

	Three Months Ended June 30,		Six Months Ended June 30,
	2021	2020	2021	2020
Biologics	41 %	28 %	40 %	28 %
Generics	16 %	21 %	17 %	20 %
Pharma	24 %	27 %	24 %	28 %
Contract-Manufactured Products	19 %	24 %	19 %	24 %
	100 %	100 %	100 %	100 %

The following table presents the approximate percentage of our net sales by product category:

	Three Months Ended June 30,		Six Months Ended June 30,
	2021	2020	2021	2020
High-Value Product Components	55 %	44 %	54 %	44 %
High-Value Product Delivery Devices	4 %	6 %	4 %	5 %
Standard Packaging	22 %	26 %	23 %	27 %
Contract-Manufactured Products	19 %	24 %	19 %	24 %
	100 %	100 %	100 %	100 %

The following table presents the approximate percentage of our net sales by geographic location:

	Three Months Ended June 30,		Six Months Ended June 30,
	2021	2020	2021	2020
Americas	43 %	50 %	45 %	49 %
Europe, Middle East, Africa	47 %	42 %	45 %	43 %
Asia Pacific	10 %	8 %	10 %	8 %
	100 %	100 %	100 %	100 %

Schedule of Change in Contract with Customer, Asset and Liability

The following table summarizes our contract assets and liabilities, excluding contract assets included in accounts receivable, net:

	($ in millions)
Contract assets, December 31, 2020	$	10.9
Contract assets, June 30, 2021	10.1
Change in contract assets - increase (decrease)	$	(0.8)
Deferred income, December 31, 2020	$	(57.1)
Deferred income, June 30, 2021	(40.0)
Change in deferred income - decrease (increase)	$	17.1

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Net Income Per Share (Tables)

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Schedule of Reconciliation of Basic to Diluted Net Income Per Share

The following table reconciles the shares used in the calculation of basic net income per share to those used for diluted net income per share:

	Three Months Ended June 30,				Six Months Ended June 30,
(in millions)	2021		2020		2021		2020
Net income	$	187.3	$	91.2	$	338.5	$	165.5
Weighted average common shares outstanding	74.0		73.8		74.0		73.8
Dilutive effect of equity awards, based on the treasury stock method	1.7		1.7		1.8		1.7
Weighted average shares assuming dilution	75.7		75.5		75.8		75.5

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Inventories (Tables)

6 Months Ended

Jun. 30, 2021

Inventory Disclosure [Abstract]

Schedule of Inventories

Inventories are valued at the lower of cost (on a first-in, first-out basis) and net realizable value. Inventory balances were as follows:

($ in millions)	June 30, 2021		December 31, 2020
Raw materials	$	130.2	$	133.5
Work in process	65.8		54.9
Finished goods	149.2		132.9
	$	345.2	$	321.3

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Leases (Tables)

6 Months Ended

Jun. 30, 2021

Leases [Abstract]

Schedule of Lease, Cost

The components of lease expense were as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
($ in millions)	2021		2020		2021		2020
Operating lease cost	$	3.1	$	3.1	$	6.2	$	6.2
Short-term lease cost	0.3		0.1		0.5		0.3
Variable lease cost	1.4		0.8		2.2		1.6
Total lease cost	$	4.8	$	4.0	$	8.9	$	8.1

Supplemental cash flow information related to leases were as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
($ in millions)	2021		2020		2021		2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	3.1	$	3.2	$	6.3	$	6.4
Right-of-use assets obtained in exchange for new operating lease liabilities	$	0.3	$	1.8	$	0.8	$	4.3

Schedule of Lessee, Operating Lease, Liability, Maturity

Maturities of operating lease liabilities were as follows:

($ in millions)	June 30,		December 31,
Year	2021		2020
2021 (remaining period as of )	$	6.0	$	12.4
2022	10.5		10.4
2023	9.4		9.3
2024	8.7		8.7
2025	6.9		6.9
Thereafter	37.1		37.5
	78.6		85.2
Less: imputed lease interest	(13.3)		(14.7)
Total lease liabilities	$	65.3	$	70.5

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Debt (Tables)

6 Months Ended

Jun. 30, 2021

Debt Disclosure [Abstract]

Schedule of Long-term Debt Obligations, Net of Current Maturities

The following table summarizes our long-term debt obligations, net of unamortized debt issuance costs and current maturities. The interest rates shown in parentheses are as of June 30, 2021.

($ in millions)	June 30, 2021		December 31, 2020
Term Loan, due December 31, 2024 (1.02%)	$	86.6	$	87.7
Series A notes, due July 5, 2022 (3.67%)	42.0		42.0
Series B notes, due July 5, 2024 (3.82%)	53.0		53.0
Series C notes, due July 5, 2027 (4.02%)	73.0		73.0
	254.6		255.7
Less: unamortized debt issuance costs	0.5		0.5
Total debt	254.1		255.2
Less: current portion of long-term debt	2.3		2.3
Long-term debt, net	$	251.8	$	252.9

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Derivative Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Foreign Currency Contracts

As of June 30, 2021, we had outstanding foreign currency contracts to purchase and sell certain pairs of currencies, as follows:

(in millions)		Sell
Currency	Purchase	USD	Euro
USD	38.7	—	32.6
Yen	8,568.0	35.5	38.0
SGD	47.8	28.6	5.8

Schedule of Effects of Derivative Instruments on Other Comprehensive Income ('OCI') and Earnings

The following table summarizes the effects of derivative instruments designated as fair value hedges on the condensed consolidated statements of income:

	Amount of (Gain) Loss Recognized in Income for the				Amount of (Gain) Loss Recognized in Income for the
	Three Months Ended June 30,				Six Months Ended June 30,				Location on Statement of Income
($ in millions)	2021		2020		2021		2020
Fair Value Hedges:
Hedged item (intercompany loan)	$	4.8	$	(1.2)	$	(5.1)	$	15.9	Other expense (income)
Derivative designated as hedging instrument	(4.8)		1.2		5.1		(15.9)		Other expense (income)
Amount excluded from effectiveness testing	(0.6)		(2.0)		(1.2)		(3.9)		Other expense (income)
Total	$	(0.6)	$	(2.0)	$	(1.2)	$	(3.9)

The following tables summarize the effects of derivative instruments designated as fair value, cash flow, and net investment hedges on other comprehensive income (“OCI”) and earnings, net of tax:

	Amount of Gain (Loss) Recognized in OCI for the				Amount of (Gain) Loss Reclassified from Accumulated OCI into Income for the				Location of (Gain) Loss Reclassified from Accumulated OCI into Income
	Three Months Ended June 30,				Three Months Ended June 30,
($ in millions)	2021		2020		2021		2020
Fair Value Hedges
Foreign currency hedge contracts	$	0.2	$	(0.7)	$	0.4	$	(1.3)	Other expense (income)
Total	$	0.2	$	(0.7)	$	0.4	$	(1.3)
Cash Flow Hedges:
Foreign currency hedge contracts	$	(0.4)	$	0.4	$	0.5	$	(0.3)	Net sales
Foreign currency hedge contracts	(0.9)		(0.7)		1.5		(0.2)		Cost of goods and services sold
Forward treasury locks	—		—		—		0.1		Interest expense
Total	$	(1.3)	$	(0.3)	$	2.0	$	(0.4)
Net Investment Hedges:
Cross-currency swap	$	0.4	$	0.6	$	—	$	—	Other expense (income)
Total	$	0.4	$	0.6	$	—	$	—

	Amount of Gain (Loss) Recognized in OCI for the				Amount of (Gain) Loss Reclassified from Accumulated OCI into Income for the				Location of (Gain) Loss Reclassified from Accumulated OCI into Income
	Six Months Ended June 30,				Six Months Ended June 30,
($ in millions)	2021		2020		2021		2020
Fair Value Hedges
Foreign currency hedge contracts	$	(0.4)	$	2.9	$	0.8	$	(2.6)	Other expense (income)
Total	$	(0.4)	$	2.9	$	0.8	$	(2.6)
Cash Flow Hedges:
Foreign currency hedge contracts	$	(0.7)	$	0.5	$	0.9	$	(0.5)	Net sales
Foreign currency hedge contracts	(2.8)		(0.3)		1.5		(0.2)		Cost of goods and services sold
Forward treasury locks	—		—		0.1		0.1		Interest expense
Total	$	(3.5)	$	0.2	$	2.5	$	(0.6)
Net Investment Hedges:
Cross-currency swap	$	5.4	$	(0.6)	$	—	$	—	Other expense (income)
Total	$	5.4	$	(0.6)	$	—	$	—

The following table summarizes the effects of derivative instruments designated as fair value, cash flow, and net investment hedges by line item in our condensed consolidated statements of income:

	Three Months Ended June 30,				Six Months Ended June 30,
($ in millions)	2021		2020		2021		2020
Net sales	$	0.5	$	(0.3)	$	0.9	$	(0.5)
Cost of goods and services sold	1.5		(0.2)		1.5		(0.2)
Interest expense	—		0.1		0.1		0.1
Other expense (income)	0.4		(1.3)		0.8		(2.6)

The following table summarizes the effects of derivative instruments not designated as hedges on the condensed consolidated statements of income:

	Amount of Gain (Loss) Recognized in Income for the				Amount of Gain (Loss) Recognized in Income for the
	Three Months Ended June 30,				Six Months Ended June 30,				Location on Statement of Income
($ in millions)	2021		2020		2021		2020
Commodity call options	$	0.7	$	—	$	1.1	$	(0.2)	Other expense (income)
Total	$	0.7	$	—	$	1.1	$	(0.2)

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Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Schedule of Assets and Liabilities Measured at Fair Value

The following tables present the assets and liabilities recorded at fair value on a recurring basis:

	Balance at		Basis of Fair Value Measurements
($ in millions)	June 30, 2021		Level 1		Level 2		Level 3
Assets:
Deferred compensation assets	$	14.6	$	14.6	$	—	$	—
Foreign currency contracts	7.0		—		7.0		—
Cross-currency swap	1.4		—		1.4		—
Commodity call options	1.7		—		1.7		—
	$	24.7	$	14.6	$	10.1	$	—
Liabilities:
Contingent consideration	$	3.6	$	—	$	—	$	3.6
Deferred compensation liabilities	15.5		15.5		—		—
Foreign currency contracts	3.6		—		3.6		—
	$	22.7	$	15.5	$	3.6	$	3.6

	Balance at		Basis of Fair Value Measurements
($ in millions)	December 31, 2020		Level 1		Level 2		Level 3
Assets:
Deferred compensation assets	$	12.8	$	12.8	$	—	$	—
Foreign currency contracts	3.0		—		3.0		—
Commodity call options	0.3				0.3
	$	16.1	$	12.8	$	3.3	$	—
Liabilities:
Contingent consideration	$	3.6	$	—	$	—	$	3.6
Deferred compensation liabilities	14.5		14.5		—		—
Cross-currency swap	5.6		—		5.6		—
Foreign currency contracts	9.7		—		9.7		—
	$	33.4	$	14.5	$	15.3	$	3.6

Schedule of Changes in Level 3 Fair Value Measurements

The following table provides a summary of changes in our Level 3 fair value measurements:

	($ in millions)
Balance, December 31, 2019	$	3.3
Increase in fair value recorded in earnings	1.2
Payments	(0.9)
Balance, December 31, 2020	3.6
Increase in fair value recorded in earnings	0.8
Payments	(0.8)
Balance, June 30, 2021	$	3.6

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Accumulated Other Comprehensive Loss (Tables)

6 Months Ended

Jun. 30, 2021

Equity [Abstract]

Schedule of Components of Accumulated Other Comprehensive Loss

The following table presents the changes in the components of accumulated other comprehensive income ("AOCI") (loss), net of tax, for the six months ended June 30, 2021:

($ in millions)	(Losses) gains on derivatives		Change in equity affiliate investment AOCI		Defined benefit pension and other postretirement plans		Foreign currency translation		Total
Balance, December 31, 2020	$	(1.9)	$	0.6	$	(40.5)	$	(68.8)	$	(110.6)
Other comprehensive income (loss) before reclassifications	(3.9)		—		0.1		(22.7)		(26.5)
Amounts reclassified out from accumulated other comprehensive income (loss)	3.3		—		0.6		—		3.9
Other comprehensive income (loss), net of tax	(0.6)		—		0.7		(22.7)		(22.6)
Balance, June 30, 2021	$	(2.5)	$	0.6	$	(39.8)	$	(91.5)	$	(133.2)

Schedule of Reclassification out of Accumulated Other Comprehensive Loss

A summary of the reclassifications out of accumulated other comprehensive loss is presented in the following table:

($ in millions)	Three Months Ended June 30,				Six Months Ended June 30,				Location on Statement of Income
Detail of components	2021		2020		2021		2020
Gains (losses) on derivatives:
Foreign currency contracts	$	(0.5)	$	0.3	$	(1.0)	$	0.6	Net sales
Foreign currency contracts	(2.3)		0.3		(2.3)		0.4		Cost of goods and services sold
Foreign currency contracts	(0.6)		2.0		(1.2)		4.0		Other expense (income)
Forward treasury locks	(0.1)		(0.1)		(0.2)		(0.2)		Interest expense
Total before tax	(3.5)		2.5		(4.7)		4.8
Tax benefit (expense)	1.2		(0.8)		1.4		(1.6)
Net of tax	$	(2.3)	$	1.7	$	(3.3)	$	3.2
Amortization of defined benefit pension and other postretirement plans:
Prior service credit	$	—	$	0.1	$	0.1	$	0.3	(a)
Actuarial losses	(0.1)		(0.1)		(0.2)		(0.2)		(a)
Settlements	(0.1)		(0.9)		(0.7)		(2.3)		(a)
Total before tax	(0.2)		(0.9)		(0.8)		(2.2)
Tax benefit (expense)	0.1		0.3		0.2		0.6
Net of tax	$	(0.1)	$	(0.6)	$	(0.6)	$	(1.6)
Total reclassifications for the period, net of tax	$	(2.4)	$	1.1	$	(3.9)	$	1.6

(a) These components are included in the computation of net periodic benefit cost. Please refer to Note 14, Benefit Plans, for additional details.

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Shareholders' Equity (Tables)

6 Months Ended

Jun. 30, 2021

Equity [Abstract]

Schedule of Stockholders Equity

The following table presents the changes in shareholders’ equity for the six months ended June 30, 2021:

	Common Shares Issued	Common Stock		Capital in Excess of Par Value		Number of Treasury Shares	Treasury Stock		Retained earnings		Accumulated other comprehensive loss		Total
(in millions)
Balance, December 31, 2020	75.3	$	18.8	$	267.3	1.3	$	(167.7)	$	1,846.7	$	(110.6)	$	1,854.5
Net income	—	—		—		—	—		151.2		—		151.2
Activity related to stock-based compensation	—	—		(20.6)		(0.3)	23.1		—		—		2.5
Shares purchased under share repurchase program	—	—		—		0.5	(137.1)		—		—		(137.1)
Dividends declared ($0.17 per share)	—	—		—		—	—		(12.5)		—		(12.5)
Other comprehensive loss, net of tax	—	—		—		—	—		—		(29.6)		(29.6)
Balance, March 31, 2021	75.3	$	18.8	$	246.7	1.5	$	(281.7)	$	1,985.4	$	(140.2)	$	1,829.0
Net income	—	—		—		—	—		187.3		—		187.3
Activity related to stock-based compensation	—	—		1.3		(0.2)	20.5		—		—		21.8
Dividends declared ($0.17 per share)	—	—		—		—	—		(12.5)		—		(12.5)
Other comprehensive income, net of tax	—	—		—		—	—		—		7.0		7.0
Balance, June 30, 2021	75.3	$	18.8	$	248.0	1.3	$	(261.2)	$	2,160.2	$	(133.2)	$	2,032.6

The following table presents the changes in shareholders’ equity for the six months ended June 30, 2020:

	Common Shares Issued	Common Stock		Capital in Excess of Par Value		Number of Treasury Shares	Treasury Stock		Retained earnings		Accumulated other comprehensive loss		Total
(in millions)
Balance, December 31, 2019	75.3	$	18.8	$	272.7	1.2	$	(118.1)	$	1,549.4	$	(149.6)	$	1,573.2
Effect of modified retrospective application of a new accounting standard	—	—		—		—	—		(0.1)		—		(0.1)
Net income	—	—		—		—	—		74.3		—		74.3
Activity related to stock-based compensation	—	—		(5.1)		(0.3)	17.9		—		—		12.8
Shares purchased under share repurchase program	—	—		—		0.8	(115.5)		—		—		(115.5)
Dividends declared ($0.16 per share)	—	—		—		—	—		(11.8)		—		(11.8)
Other comprehensive loss, net of tax	—	—		—		—	—		—		(42.7)		(42.7)
Balance, March 31, 2020	75.3	$	18.8	$	267.6	1.7	$	(215.7)	$	1,611.8	$	(192.3)	$	1,490.2
Net income	—	—		—		—	—		91.2		—		91.2
Activity related to stock-based compensation	—	—		(4.5)		(0.2)	24.9		—		—		20.4
Other comprehensive income, net of tax	—	—		—		—	—		—		4.5		4.5
Balance, June 30, 2020	75.3	$	18.8	$	263.1	1.5	$	(190.8)	$	1,703.0	$	(187.8)	$	1,606.3

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Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2021

Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]

Schedule of Components of Net Periodic Benefit Cost

The components of net periodic benefit cost for the three months ended June 30 were as follows:

	Pension benefits				Other retirement benefits				Total
($ in millions)	2021		2020		2021		2020		2021		2020
Service cost	$	0.4	$	0.3	$	—	$	—	$	0.4	$	0.3
Interest cost	1.5		1.9		—		—		1.5		1.9
Expected return on assets	(3.0)		(3.0)		—		—		(3.0)		(3.0)
Amortization of prior service credit	0.1		—		(0.1)		(0.1)		—		(0.1)
Recognized actuarial losses (gains)	0.5		0.5		(0.4)		(0.4)		0.1		0.1
Settlements	0.1		0.9		—		—		0.1		0.9
Net periodic benefit cost	$	(0.4)	$	0.6	$	(0.5)	$	(0.5)	$	(0.9)	$	0.1

	Pension benefits				Other retirement benefits				Total
($ in millions)	2021		2020		2021		2020		2021		2020
U.S. plans	$	(1.0)	$	0.2	$	(0.5)	$	(0.5)	$	(1.5)	$	(0.3)
International plans	0.6		0.4		—		—		0.6		0.4
Net periodic benefit cost	$	(0.4)	$	0.6	$	(0.5)	$	(0.5)	$	(0.9)	$	0.1

The components of net periodic benefit cost for the six months ended June 30 were as follows:

	Pension benefits				Other retirement benefits				Total
($ in millions)	2021		2020		2021		2020		2021		2020
Service cost	$	0.8	$	0.6	$	—	$	—	$	0.8	$	0.6
Interest cost	2.9		3.9		0.1		0.1		3.0		4.0
Expected return on assets	(6.1)		(6.0)		—		—		(6.1)		(6.0)
Amortization of prior service credit	0.1		—		(0.2)		(0.3)		(0.1)		(0.3)
Recognized actuarial losses (gains)	1.0		1.0		(0.8)		(0.8)		0.2		0.2
Settlements	0.7		2.3		—		—		0.7		2.3
Net periodic benefit cost	$	(0.6)	$	1.8	$	(0.9)	$	(1.0)	$	(1.5)	$	0.8

	Pension benefits				Other retirement benefits				Total
($ in millions)	2021		2020		2021		2020		2021		2020
U.S. plans	$	(1.6)	$	1.1	$	(0.9)	$	(1.0)	$	(2.5)	$	0.1
International plans	1.0		0.7		—		—		1.0		0.7
Net periodic benefit cost	$	(0.6)	$	1.8	$	(0.9)	$	(1.0)	$	(1.5)	$	0.8

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Other Expense (Income) (Tables)

6 Months Ended

Jun. 30, 2021

Other Income and Expenses [Abstract]

Schedule of Other Expense (Income)

Other expense (income) consists of:

	Three Months Ended June 30,				Six Months Ended June 30,
($ in millions)	2021		2020		2021		2020
Restructuring and related charges	$	1.0	$	—	$	2.2	$	—
Fixed asset impairments and loss (gain) on sale of equipment	0.2		6.3		0.3		6.5
Contingent consideration	0.2		0.1		0.9		0.1
Foreign exchange transaction gains	(2.6)		(2.0)		(2.9)		(5.5)
Other items	(1.5)		(1.4)		0.7		(1.6)
Total other expense (income)	$	(2.7)	$	3.0	$	1.2	$	(0.5)

Schedule of Restructuring Reserve

The following table presents activity related to our restructuring obligations related to our 2020 restructuring plan:

($ in millions)	Severance and benefits		Asset-related charges		Other charges		Total
Balance, December 31, 2020	$	4.6	$	—	$	—	$	4.6
Charges	1.0		—		1.2		2.2
Cash payments	(1.1)		—		(0.5)		(1.6)
Balance, June 30, 2021	$	4.5	$	—	$	0.7	$	5.2

The following table presents activity related to our restructuring obligations related to our 2018 restructuring plan:

($ in millions)	Severance and benefits		Total
Balance, December 31, 2020	$	0.1	$	0.1
Cash payments	(0.1)		(0.1)
Balance, June 30, 2021	$	—	$	—

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Segment Information (Tables)

6 Months Ended

Jun. 30, 2021

Segment Reporting [Abstract]

Schedule of Segment Information

The following table presents information about our reportable segments, reconciled to consolidated totals:

	Three Months Ended June 30,				Six Months Ended June 30,
($ in millions)	2021		2020		2021		2020
Net sales:
Proprietary Products	$	587.3	$	399.5	$	1,131.0	$	773.0
Contract-Manufactured Products	136.4		127.8		263.5		245.9
Intersegment sales elimination	(0.1)		(0.1)		(0.2)		(0.2)
Consolidated net sales	$	723.6	$	527.2	$	1,394.3	$	1,018.7

The intersegment sales elimination, which is required for the presentation of consolidated net sales, represents the elimination of components sold between our segments.

The following table provides summarized financial information for our segments:

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Operating profit (loss):
Proprietary Products	$	216.2	$	112.2	$	398.8	$	205.4
Contract-Manufactured Products	18.7		20.5		35.1		33.3
Total business and segment operating profit	$	234.9	$	132.7	$	433.9	$	238.7
Corporate and Unallocated
Stock-based compensation expense	$	(10.3)	$	(12.3)	$	(16.2)	$	(17.7)
Corporate general costs (1)	(13.4)		(14.4)		(27.3)		(27.0)
Unallocated Items:
Restructuring and severance related charges	(1.0)		(2.2)		(2.2)		(2.2)
Amortization of Acquisition-related Intangible Assets (2)	(0.2)		(0.2)		(0.4)		(0.2)
Cost investment activity	1.3		—		(0.9)		—
Total Corporate and Unallocated	(23.6)		(29.1)		(47.0)		(47.1)
Total consolidated operating profit	$	211.3	$	103.6	$	386.9	$	191.6
Other expense, net	0.3		1.6		1.0		3.1
Income before income taxes	$	211.0	$	102.0	$	385.9	$	188.5

(1) Corporate general costs includes executive and director compensation, certain pension and other retirement benefit costs, and other corporate facilities and administrative expenses not allocated to the segments.

(2) During the three and six months ended June 30, 2021, the Company recorded $0.2 million and $0.4 million, respectively, of amortization expense within operating profit associated with an intangible asset acquired during the second quarter of 2020.

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Revenue - Revenue Recognition (Details) - Revenue Benchmark	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Customer Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of net sales	100.00%	100.00%	100.00%	100.00%
Customer Concentration Risk | Biologics
Disaggregation of Revenue [Line Items]
Percentage of net sales	41.00%	28.00%	40.00%	28.00%
Customer Concentration Risk | Generics
Disaggregation of Revenue [Line Items]
Percentage of net sales	16.00%	21.00%	17.00%	20.00%
Customer Concentration Risk | Pharma
Disaggregation of Revenue [Line Items]
Percentage of net sales	24.00%	27.00%	24.00%	28.00%
Customer Concentration Risk | Contract-Manufactured Products
Disaggregation of Revenue [Line Items]
Percentage of net sales	19.00%	24.00%	19.00%	24.00%
Product Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of net sales	100.00%	100.00%	100.00%	100.00%
Product Concentration Risk | High-Value Product Components
Disaggregation of Revenue [Line Items]
Percentage of net sales	55.00%	44.00%	54.00%	44.00%
Product Concentration Risk | High-Value Product Delivery Devices
Disaggregation of Revenue [Line Items]
Percentage of net sales	4.00%	6.00%	4.00%	5.00%
Product Concentration Risk | Standard Packaging
Disaggregation of Revenue [Line Items]
Percentage of net sales	22.00%	26.00%	23.00%	27.00%
Product Concentration Risk | Contract-Manufactured Products
Disaggregation of Revenue [Line Items]
Percentage of net sales	19.00%	24.00%	19.00%	24.00%
Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of net sales	100.00%	100.00%	100.00%	100.00%
Geographic Concentration Risk | Americas
Disaggregation of Revenue [Line Items]
Percentage of net sales	43.00%	50.00%	45.00%	49.00%
Geographic Concentration Risk | Europe, Middle East, Africa
Disaggregation of Revenue [Line Items]
Percentage of net sales	47.00%	42.00%	45.00%	43.00%
Geographic Concentration Risk | Asia Pacific
Disaggregation of Revenue [Line Items]
Percentage of net sales	10.00%	8.00%	10.00%	8.00%

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Revenue - Contracts and Liabilities (Details) $ in Millions	6 Months Ended
	Jun. 30, 2021 USD ($)
Contract With Customer, Asset [Roll Forward]
Contract assets, December 31, 2020	$ 10.9
Contract assets, June 30, 2021	10.1
Change in contract assets - increase (decrease)	(0.8)
Contract With Customer, Liability [Roll Forward]
Deferred income, December 31, 2020	(57.1)
Deferred income, June 30, 2021	(40.0)
Change in deferred income - decrease (increase)	$ 17.1

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Revenue - Contracts and Liabilities, Narrative (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2013
Disaggregation of Revenue [Line Items]
Revenue recognized that was included in the deferred income balance	$ 28.4
Deferred income	40.0	$ 57.1
SmartDose
Disaggregation of Revenue [Line Items]
Deferred income	4.3		$ 20.0
Deferred income, current	0.9
Deferred income, noncurrent	$ 3.4
Minimum
Disaggregation of Revenue [Line Items]
Contract with customer liability recognized	1 year
Maximum
Disaggregation of Revenue [Line Items]
Contract with customer liability recognized	2 years

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Net Income Per Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Earnings Per Share [Abstract]
Net income	$ 187.3	$ 151.2	$ 91.2	$ 74.3	$ 338.5	$ 165.5
Weighted average common shares outstanding (in shares)	74,000,000.0		73,800,000		74,000,000.0	73,800,000
Dilutive effect of equity awards, based on the treasury stock method (in shares)	1,700,000		1,700,000		1,800,000	1,700,000
Weighted average shares assuming dilution (in shares)	75,700,000		75,500,000		75,800,000	75,500,000
Antidilutive options excluded from computation of diluted net income per share (in shares)	100,000		200,000		100,000	200,000
Stock repurchase program, shares authorized (in shares)							631,000
Share purchased under share repurchase program (in shares)	0				479,000
Stock purchase program, cost of shares purchased		$ 137.1		$ 115.5	$ 137.1
Stock repurchase program, average price per share (in dollars per share)					$ 286.23

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Inventories (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Inventory Disclosure [Abstract]
Raw materials	$ 130.2	$ 133.5
Work in process	65.8	54.9
Finished goods	149.2	132.9
Total inventories	$ 345.2	$ 321.3

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Leases - Lease Cost (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Leases [Abstract]
Operating lease cost	$ 3.1	$ 3.1	$ 6.2	$ 6.2
Short-term lease cost	0.3	0.1	0.5	0.3
Variable lease cost	1.4	0.8	2.2	1.6
Total lease cost	$ 4.8	$ 4.0	$ 8.9	$ 8.1

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Leases - Lease Cash Flow and Supplemental Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 3.1	$ 3.2	$ 6.3	$ 6.4
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 0.3	$ 1.8	$ 0.8	$ 4.3

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Leases - Lease Weighted Average (Details)	Jun. 30, 2021	Dec. 31, 2020
Leases [Abstract]
Weighted average remaining lease term	11 years	11 years 1 month 6 days
Weighted average discount rate	3.66%	3.68%

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Leases - Maturities of Operating Lease Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Leases [Abstract]
Remainder of fiscal year	$ 6.0
Year one	10.5	$ 12.4
Year two	9.4	10.4
Year three	8.7	9.3
Year four	6.9	8.7
Thereafter	37.1
Year five		6.9
Thereafter		37.5
Operating leases liabilities payments due	78.6	85.2
Less: imputed lease interest	(13.3)	(14.7)
Total lease liabilities	$ 65.3	$ 70.5

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Affiliated Companies (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Equity Method Investments and Joint Ventures [Abstract]
Carrying amount, equity-method investments	$ 203.1		$ 203.1		$ 201.9
Carrying amount, investments not accounted for under the equity method	8.6		8.6		12.8
Purchases and royalty payments made to affiliates	47.6	$ 27.9	85.6	$ 60.4
Amount due and payable to affiliates	18.9		18.9		33.6
Sales to affiliates	3.1	$ 2.8	6.0	$ 5.0
Amount receivable from affiliates	$ 2.5		$ 2.5		$ 1.4

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Debt - Long-term Debt (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Long-term debt, gross	$ 254.6	$ 255.7
Less: unamortized debt issuance costs	0.5	0.5
Total debt	254.1	255.2
Less: current portion of long-term debt	2.3	2.3
Long-term debt, net	$ 251.8	252.9
Term Loan, due December 31, 2024 (1.02%)
Debt Instrument [Line Items]
Debt instrument, stated interest rate	1.02%
Long-term debt, gross	$ 86.6	87.7
Long-term debt, net	$ 84.3
Series A notes, due July 5, 2022 (3.67%)
Debt Instrument [Line Items]
Debt instrument, stated interest rate	3.67%
Long-term debt, gross	$ 42.0	42.0
Series B notes, due July 5, 2024 (3.82%)
Debt Instrument [Line Items]
Debt instrument, stated interest rate	3.82%
Long-term debt, gross	$ 53.0	53.0
Series C notes, due July 5, 2027 (4.02%)
Debt Instrument [Line Items]
Debt instrument, stated interest rate	4.02%
Long-term debt, gross	$ 73.0	$ 73.0

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Debt - Credit Agreement (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Line of Credit Facility [Line Items]
Long-term debt, gross	$ 254.6	$ 255.7
Long-term debt, current	2.3	2.3
Long-term debt	251.8	252.9
Revolving credit facility, Due 2024
Line of Credit Facility [Line Items]
Line of credit facility, current borrowing capacity	300.0
Line of credit Facility, unused commitment level	297.6
Revolving credit facility, Due 2024 | Letter of Credit
Line of Credit Facility [Line Items]
Long-term line of credit	2.4
Term Loan Due 2024
Line of Credit Facility [Line Items]
Long-term debt, gross	86.6	$ 87.7
Long-term debt, current	2.3
Long-term debt	$ 84.3

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Derivative Financial Instruments - Foreign Exchange Rate Risk (Details) € in Millions, ¥ in Millions, $ in Millions, $ in Millions	6 Months Ended	44 Months Ended
	Jun. 30, 2021 SGD ($) $ / bbl bbl	Jun. 30, 2021 SGD ($) $ / bbl bbl	Jun. 30, 2021 USD ($) $ / bbl	Jun. 30, 2021 EUR (€) $ / bbl	Jun. 30, 2021 JPY (¥) $ / bbl	Dec. 31, 2020 SGD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2019 JPY (¥)
Foreign Exchange Forward
Derivative [Line Items]
Derivative contract term	18 months
Options Held
Derivative [Line Items]
Derivative, nonmonetary notional amount, volume | bbl	171,634	552,686
Derivative, average price risk option strike price | $ / bbl	65.77	65.77	65.77	65.77	65.77
USD | Forward Contracts
Derivative [Line Items]
Derivative, notional amount			$ 13.4				$ 13.4
USD | Foreign Exchange Forward | Long | Designated as Hedging Instrument
Derivative [Line Items]
Derivative, notional amount			38.7
USD | Foreign Exchange Forward | Short | Designated as Hedging Instrument
Derivative [Line Items]
Derivative, notional amount			0.0	€ 32.6
USD | Cross Currency Interest Rate Contract
Derivative [Line Items]
Derivative, notional amount								$ 86.6
USD | Cross Currency Interest Rate Contract | Net Investment Hedges:
Derivative [Line Items]
Derivative, notional amount								$ 90.0
Yen | Foreign Exchange Forward | Long | Designated as Hedging Instrument
Derivative [Line Items]
Derivative, notional amount | ¥					¥ 8,568.0
Yen | Foreign Exchange Forward | Short | Designated as Hedging Instrument
Derivative [Line Items]
Derivative, notional amount			35.5	38.0
Yen | Cross Currency Interest Rate Contract
Derivative [Line Items]
Derivative, notional amount | ¥									¥ 9,500.0
SGD | Forward Contracts
Derivative [Line Items]
Derivative, notional amount	$ 601.5	$ 601.5				$ 601.5
SGD | Foreign Exchange Forward | Long | Designated as Hedging Instrument
Derivative [Line Items]
Derivative, notional amount	$ 47.8	$ 47.8
SGD | Foreign Exchange Forward | Short | Designated as Hedging Instrument
Derivative [Line Items]
Derivative, notional amount			$ 28.6	€ 5.8

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Derivative Financial Instruments - Effects of Derivative Instruments on OCI and Earnings (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Derivative (gain) loss recognized in income, fair value hedges	$ (0.6)	$ (2.0)	$ (1.2)	$ (3.9)
Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivative instruments not designated as hedging instruments, gain (loss), net	0.7	0.0	1.1	(0.2)
Fair Value Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, forward point components, (gain) loss, recognized in earnings	(0.6)	1.7	(1.2)	3.7
Fair value and net investment hedges, amount of gain (loss) recognized in OCI	0.2	(0.7)	(0.4)	2.9
Fair value and net investment hedges, amount of (gain) loss reclassified from accumulated OCI into income	0.4	(1.3)	0.8	(2.6)
Cash Flow Hedges:
Derivative Instruments, Gain (Loss) [Line Items]
Cash flow hedges, amount of gain (loss) recognized in OCI	(1.3)	(0.3)	(3.5)	0.2
Cash flow hedges, amount of (gain) loss reclassified from accumulated OCI into income	2.0	(0.4)	2.5	(0.6)
Net Investment Hedges:
Derivative Instruments, Gain (Loss) [Line Items]
Fair value and net investment hedges, amount of gain (loss) recognized in OCI	0.4	0.6	5.4	(0.6)
Fair value and net investment hedges, amount of (gain) loss reclassified from accumulated OCI into income	0.0	0.0	0.0	0.0
Other expense (income)
Derivative Instruments, Gain (Loss) [Line Items]
Derivative (gain) loss on hedged item, fair value hedges	4.8	(1.2)	(5.1)	15.9
Derivative (gain) loss on derivative designed as hedging instrument, fair value hedges	(4.8)	1.2	5.1	(15.9)
Derivative (gain) loss on amount excluded from effectiveness testing, fair value hedges	(0.6)	(2.0)	(1.2)	(3.9)
Gain (loss) on derivative instruments, net, pretax	0.4	(1.3)	0.8	(2.6)
Other expense (income) | Commodity call options | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivative instruments not designated as hedging instruments, gain (loss), net	0.7	0.0	1.1	(0.2)
Other expense (income) | Fair Value Hedges | Foreign currency hedge contracts
Derivative Instruments, Gain (Loss) [Line Items]
Fair value and net investment hedges, amount of gain (loss) recognized in OCI	0.2	(0.7)	(0.4)	2.9
Fair value and net investment hedges, amount of (gain) loss reclassified from accumulated OCI into income	0.4	(1.3)	0.8	(2.6)
Other expense (income) | Net Investment Hedges: | Cross-currency swap
Derivative Instruments, Gain (Loss) [Line Items]
Fair value and net investment hedges, amount of gain (loss) recognized in OCI	0.4	0.6	5.4	(0.6)
Fair value and net investment hedges, amount of (gain) loss reclassified from accumulated OCI into income	0.0		0.0	0.0
Net sales
Derivative Instruments, Gain (Loss) [Line Items]
Cash flow hedges, amount of gain (loss) recognized in OCI		0.5
Cash flow hedges, amount of (gain) loss reclassified from accumulated OCI into income				(0.5)
Gain (loss) on derivative instruments, net, pretax	0.5	(0.3)	0.9	(0.5)
Net sales | Cash Flow Hedges: | Foreign currency hedge contracts
Derivative Instruments, Gain (Loss) [Line Items]
Cash flow hedges, amount of gain (loss) recognized in OCI	(0.4)	0.4	(0.7)	0.5
Cash flow hedges, amount of (gain) loss reclassified from accumulated OCI into income	0.5	(0.3)	0.9	(0.5)
Cost of goods and services sold
Derivative Instruments, Gain (Loss) [Line Items]
Cash flow hedges, amount of gain (loss) recognized in OCI				(0.3)
Cash flow hedges, amount of (gain) loss reclassified from accumulated OCI into income				(0.2)
Gain (loss) on derivative instruments, net, pretax	1.5	(0.2)	1.5	(0.2)
Cost of goods and services sold | Cash Flow Hedges: | Foreign currency hedge contracts
Derivative Instruments, Gain (Loss) [Line Items]
Cash flow hedges, amount of gain (loss) recognized in OCI	(0.9)	(0.7)	(2.8)	(0.3)
Cash flow hedges, amount of (gain) loss reclassified from accumulated OCI into income	1.5	(0.2)	1.5	(0.2)
Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivative instruments, net, pretax	0.0	0.1	0.1	0.1
Interest expense | Cash Flow Hedges: | Forward treasury locks
Derivative Instruments, Gain (Loss) [Line Items]
Cash flow hedges, amount of gain (loss) recognized in OCI	0.0	0.0	0.0	0.0
Cash flow hedges, amount of (gain) loss reclassified from accumulated OCI into income	$ 0.0	$ 0.1	$ 0.1	$ 0.1

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Fair Value Measurements - Assets and Liabilities Recorded at Fair Value (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Assets:
Deferred compensation assets	$ 14.6	$ 12.8
Foreign currency contracts		3.0
Commodity call options	1.7	0.3
Total assets at fair value	24.7	16.1
Liabilities:
Contingent consideration	3.6	3.6
Deferred compensation liabilities	15.5	14.5
Total liabilities at fair value	22.7	33.4
Foreign currency contracts
Assets:
Foreign currency contracts	7.0
Liabilities:
Foreign currency contracts	3.6	9.7
Cross-currency swap
Assets:
Foreign currency contracts	1.4
Liabilities:
Foreign currency contracts		5.6
Level 1
Assets:
Deferred compensation assets	14.6	12.8
Foreign currency contracts		0.0
Commodity call options	0.0
Total assets at fair value	14.6	12.8
Liabilities:
Contingent consideration	0.0	0.0
Deferred compensation liabilities	15.5	14.5
Total liabilities at fair value	15.5	14.5
Level 1 | Foreign currency contracts
Assets:
Foreign currency contracts	0.0
Liabilities:
Foreign currency contracts	0.0	0.0
Level 1 | Cross-currency swap
Assets:
Foreign currency contracts	0.0
Liabilities:
Foreign currency contracts		0.0
Level 2
Assets:
Deferred compensation assets	0.0	0.0
Foreign currency contracts		3.0
Commodity call options	1.7	0.3
Total assets at fair value	10.1	3.3
Liabilities:
Contingent consideration	0.0	0.0
Deferred compensation liabilities	0.0	0.0
Total liabilities at fair value	3.6	15.3
Level 2 | Foreign currency contracts
Assets:
Foreign currency contracts	7.0
Liabilities:
Foreign currency contracts	3.6	9.7
Level 2 | Cross-currency swap
Assets:
Foreign currency contracts	1.4
Liabilities:
Foreign currency contracts		5.6
Level 3
Assets:
Deferred compensation assets	0.0	0.0
Foreign currency contracts		0.0
Commodity call options	0.0
Total assets at fair value	0.0	0.0
Liabilities:
Contingent consideration	3.6	3.6
Deferred compensation liabilities	0.0	0.0
Total liabilities at fair value	3.6	3.6
Level 3 | Foreign currency contracts
Assets:
Foreign currency contracts	0.0
Liabilities:
Foreign currency contracts	0.0	0.0
Level 3 | Cross-currency swap
Assets:
Foreign currency contracts	$ 0.0
Liabilities:
Foreign currency contracts		$ 0.0

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Fair Value Measurement - Level 3 Fair Value Measurements (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Level 3 Fair Value Measurements [Roll Forward]
Balance, beginning of period	$ 3.6	$ 3.3
Increase in fair value recorded in earnings	0.8	1.2
Payments	(0.8)	(0.9)
Balance, end of period	$ 3.6	$ 3.6
Sales Projections | Minimum
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]
Business combination, contingent consideration, measurement input	10.00%
Sales Projections | Maximum
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]
Business combination, contingent consideration, measurement input	50.00%
Sales Projections | Weighted Average
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]
Business combination, contingent consideration, measurement input	40.00%
Probabilities of Successful FDA Approval | Minimum
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]
Business combination, contingent consideration, measurement input	19.00%
Probabilities of Successful FDA Approval | Maximum
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]
Business combination, contingent consideration, measurement input	100.00%
Probabilities of Successful Execution of Agreement | Minimum
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]
Business combination, contingent consideration, measurement input	25.00%
Probabilities of Successful Execution of Agreement | Maximum
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]
Business combination, contingent consideration, measurement input	100.00%
Measurement Input, Discount Rate
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]
Business combination, contingent consideration, measurement input	19.00%

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Fair Value Measurement - Other Financial Instruments (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Other Financial Instruments [Abstract]
Long-term debt, fair value	$ 263.9	$ 265.7
Long-term debt	$ 251.8	$ 252.9

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Accumulated Other Comprehensive Loss - Components of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Changes in the Components of Accumulated Other Comprehensive Loss, Net of Tax [Roll Forward]
Beginning balance	$ 1,829.0	$ 1,854.5	$ 1,490.2	$ 1,573.2	$ 1,854.5	$ 1,573.2
Other comprehensive income (loss) before reclassifications					(26.5)
Amounts reclassified out from accumulated other comprehensive income (loss)					3.9
Other comprehensive income (loss), net of tax	7.0	(29.6)	4.5	(42.7)	(22.6)	(38.2)
Ending balance	2,032.6	1,829.0	1,606.3	1,490.2	2,032.6	1,606.3
(Losses) gains on derivatives
Changes in the Components of Accumulated Other Comprehensive Loss, Net of Tax [Roll Forward]
Beginning balance		(1.9)			(1.9)
Other comprehensive income (loss) before reclassifications					(3.9)
Amounts reclassified out from accumulated other comprehensive income (loss)					3.3
Other comprehensive income (loss), net of tax					(0.6)
Ending balance	(2.5)				(2.5)
Change in equity affiliate investment AOCI
Changes in the Components of Accumulated Other Comprehensive Loss, Net of Tax [Roll Forward]
Beginning balance		0.6			0.6
Other comprehensive income (loss) before reclassifications					0.0
Amounts reclassified out from accumulated other comprehensive income (loss)					0.0
Other comprehensive income (loss), net of tax					0.0
Ending balance	0.6				0.6
Defined benefit pension and other postretirement plans
Changes in the Components of Accumulated Other Comprehensive Loss, Net of Tax [Roll Forward]
Beginning balance		(40.5)			(40.5)
Other comprehensive income (loss) before reclassifications					0.1
Amounts reclassified out from accumulated other comprehensive income (loss)					0.6
Other comprehensive income (loss), net of tax					0.7
Ending balance	(39.8)				(39.8)
Foreign currency translation
Changes in the Components of Accumulated Other Comprehensive Loss, Net of Tax [Roll Forward]
Beginning balance		(68.8)			(68.8)
Other comprehensive income (loss) before reclassifications					(22.7)
Amounts reclassified out from accumulated other comprehensive income (loss)					0.0
Other comprehensive income (loss), net of tax					(22.7)
Ending balance	(91.5)				(91.5)
Accumulated other comprehensive loss
Changes in the Components of Accumulated Other Comprehensive Loss, Net of Tax [Roll Forward]
Beginning balance	(140.2)	(110.6)	(192.3)	(149.6)	(110.6)	(149.6)
Other comprehensive income (loss), net of tax	7.0	(29.6)	4.5	(42.7)
Ending balance	$ (133.2)	$ (140.2)	$ (187.8)	$ (192.3)	$ (133.2)	$ (187.8)

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Accumulated Other Comprehensive Loss - Other Comprehensive Loss Reclassifications (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Reclassification out of Accumulated Other Comprehensive Loss [Line Items]
Cost of goods and services sold	$ (408.5)		$ (332.1)		$ (807.3)	$ (656.6)
Interest expense	(1.9)		(2.0)		(3.8)	(4.0)
Prior service credit	0.0		0.1		0.1	0.3
Actuarial losses	(0.1)		(0.1)		(0.2)	(0.2)
Settlements	(0.1)		(0.9)		(0.7)	(2.3)
Income before income taxes	211.0		102.0		385.9	188.5
Tax benefit (expense)	(32.3)		(16.0)		(61.0)	(31.0)
Total reclassifications for the period, net of tax	187.3	$ 151.2	91.2	$ 74.3	338.5	165.5
Reclassification out of Accumulated Other Comprehensive Loss
Reclassification out of Accumulated Other Comprehensive Loss [Line Items]
Total reclassifications for the period, net of tax	(2.4)		1.1		(3.9)	1.6
Reclassification out of Accumulated Other Comprehensive Loss | Gains (losses) on derivatives:
Reclassification out of Accumulated Other Comprehensive Loss [Line Items]
Income before income taxes	(3.5)		2.5		(4.7)	4.8
Tax benefit (expense)	1.2		(0.8)		1.4	(1.6)
Total reclassifications for the period, net of tax	(2.3)		1.7		(3.3)	3.2
Reclassification out of Accumulated Other Comprehensive Loss | Gains (losses) on derivatives: | Foreign currency contracts
Reclassification out of Accumulated Other Comprehensive Loss [Line Items]
Net sales	(0.5)		0.3		(1.0)	0.6
Cost of goods and services sold	(2.3)		0.3		(2.3)	0.4
Other expense (income)	(0.6)		2.0		(1.2)	4.0
Reclassification out of Accumulated Other Comprehensive Loss | Gains (losses) on derivatives: | Forward treasury locks
Reclassification out of Accumulated Other Comprehensive Loss [Line Items]
Interest expense	(0.1)		(0.1)		(0.2)	(0.2)
Reclassification out of Accumulated Other Comprehensive Loss | Amortization of defined benefit pension and other postretirement plans:
Reclassification out of Accumulated Other Comprehensive Loss [Line Items]
Prior service credit	0.0		0.1		0.1	0.3
Actuarial losses	(0.1)		(0.1)		(0.2)	(0.2)
Settlements	(0.1)		(0.9)		(0.7)	(2.3)
Income before income taxes	(0.2)		(0.9)		(0.8)	(2.2)
Tax benefit (expense)	0.1		0.3		0.2	0.6
Total reclassifications for the period, net of tax	$ (0.1)		$ (0.6)		$ (0.6)	$ (1.6)

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Shareholder's Equity - Change in Shareholders' Equity (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended		12 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2019
Class of Stock [Line Items]
Accounting Standards Update [Extensible Enumeration]							us-gaap:AccountingStandardsUpdate201613Member
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ 1,829.0	$ 1,854.5	$ 1,490.2	$ 1,573.2	$ 1,854.5	$ 1,573.2
Net income	187.3	151.2	91.2	74.3	$ 338.5	165.5
Activity related to stock-based compensation	$ 21.8	2.5	20.4	12.8
Share purchased under share repurchase program (in shares)	0				479,000
Shares purchased under share repurchase program		(137.1)		(115.5)	$ (137.1)
Dividends declared	$ (12.5)	(12.5)		(11.8)
Other comprehensive income (loss), net of tax	7.0	(29.6)	4.5	(42.7)	(22.6)	(38.2)
Ending balance	$ 2,032.6	$ 1,829.0	$ 1,606.3	1,490.2	$ 2,032.6	1,606.3	$ 1,573.2
Cumulative Effect, Period of Adoption, Adjustment
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance				$ (0.1)		$ (0.1)
Ending balance							$ (0.1)
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance (in shares)	75,300,000	75,300,000	75,300,000	75,300,000	75,300,000	75,300,000
Beginning balance	$ 18.8	$ 18.8	$ 18.8	$ 18.8	$ 18.8	$ 18.8
Balance (in shares)	75,300,000	75,300,000	75,300,000	75,300,000	75,300,000	75,300,000	75,300,000
Ending balance	$ 18.8	$ 18.8	$ 18.8	$ 18.8	$ 18.8	$ 18.8	$ 18.8
Capital in Excess of Par Value
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	246.7	267.3	267.6	272.7	267.3	272.7
Activity related to stock-based compensation	1.3	(20.6)	(4.5)	(5.1)
Ending balance	$ 248.0	$ 246.7	$ 263.1	$ 267.6	$ 248.0	$ 263.1	$ 272.7
Treasury Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance (in shares)	1,500,000	1,300,000	1,700,000	1,200,000	1,300,000	1,200,000
Beginning balance	$ (281.7)	$ (167.7)	$ (215.7)	$ (118.1)	$ (167.7)	$ (118.1)
Activity related to stock -based compensation (in shares)	(200,000)	(300,000)	(200,000)	(300,000)
Activity related to stock-based compensation	$ 20.5	$ 23.1	$ 24.9	$ 17.9
Share purchased under share repurchase program (in shares)		500,000		800,000
Shares purchased under share repurchase program		$ (137.1)		$ (115.5)
Balance (in shares)	1,300,000	1,500,000	1,500,000	1,700,000	1,300,000	1,500,000	1,200,000
Ending balance	$ (261.2)	$ (281.7)	$ (190.8)	$ (215.7)	$ (261.2)	$ (190.8)	$ (118.1)
Retained earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	1,985.4	1,846.7	1,611.8	1,549.4	1,846.7	1,549.4
Net income	187.3	151.2	91.2	74.3
Dividends declared	(12.5)	(12.5)		(11.8)
Ending balance	2,160.2	1,985.4	1,703.0	1,611.8	2,160.2	1,703.0	1,549.4
Retained earnings | Cumulative Effect, Period of Adoption, Adjustment
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance				(0.1)		(0.1)
Ending balance							(0.1)
Accumulated other comprehensive loss
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(140.2)	(110.6)	(192.3)	(149.6)	(110.6)	(149.6)
Other comprehensive income (loss), net of tax	7.0	(29.6)	4.5	(42.7)
Ending balance	$ (133.2)	$ (140.2)	$ (187.8)	$ (192.3)	$ (133.2)	$ (187.8)	$ (149.6)

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Shareholder's Equity - Supplemental Equity Information (Details) - $ / shares	3 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Mar. 31, 2020
Equity [Abstract]
Dividends declared per share (in dollars per share)	$ 0.17	$ 0.17	$ 0.16

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Stock-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for issuance under the 2016 Plan (in shares)	2,484,562		2,484,562
Stock options, granted (in shares)			157,416
Stock options, weighted average exercise price (in dollars per share)			$ 275.02
Stock options, weighted average grant date fair value (in dollars per share)			$ 63.19
Risk-free interest rate (in hundredths)			0.70%
Expected life (in years)			5 years 7 months 6 days
Stock volatility (in hundredths)			23.90%
Dividend yield (in hundredths)			0.30%
Stock-based compensation expense	$ 10.3	$ 12.3	$ 16.2	$ 17.7
Performance Share Unit (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)			36,174
Grant date fair value (in dollars per share)			$ 329.88
PSU payout, minimum (in hundredths)	0.00%		0.00%
PSU payout, maximum (in hundredths)	200.00%		200.00%
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)			4,637
Grant date fair value (in dollars per share)			$ 279.92

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Benefit Plans - Schedule of Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Service cost	$ 0.4	$ 0.3	$ 0.8	$ 0.6
Interest cost	1.5	1.9	3.0	4.0
Expected return on assets	(3.0)	(3.0)	(6.1)	(6.0)
Amortization of prior service credit	0.0	(0.1)	(0.1)	(0.3)
Recognized actuarial losses (gains)	0.1	0.1	0.2	0.2
Settlements	0.1	0.9	0.7	2.3
Net periodic benefit cost	(0.9)	0.1	(1.5)	0.8
U.S. plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Net periodic benefit cost	(1.5)	(0.3)	(2.5)	0.1
International plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Net periodic benefit cost	0.6	0.4	1.0	0.7
Pension benefits
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Service cost	0.4	0.3	0.8	0.6
Interest cost	1.5	1.9	2.9	3.9
Expected return on assets	(3.0)	(3.0)	(6.1)	(6.0)
Amortization of prior service credit	0.1	0.0	0.1	0.0
Recognized actuarial losses (gains)	0.5	0.5	1.0	1.0
Settlements	0.1	0.9	0.7	2.3
Net periodic benefit cost	(0.4)	0.6	(0.6)	1.8
Pension benefits | U.S. plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Net periodic benefit cost	(1.0)	0.2	(1.6)	1.1
Pension benefits | International plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Net periodic benefit cost	0.6	0.4	1.0	0.7
Other retirement benefits
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Service cost	0.0	0.0	0.0	0.0
Interest cost	0.0	0.0	0.1	0.1
Expected return on assets	0.0	0.0	0.0	0.0
Amortization of prior service credit	(0.1)	(0.1)	(0.2)	(0.3)
Recognized actuarial losses (gains)	(0.4)	(0.4)	(0.8)	(0.8)
Settlements	0.0	0.0	0.0	0.0
Net periodic benefit cost	(0.5)	(0.5)	(0.9)	(1.0)
Other retirement benefits | U.S. plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Net periodic benefit cost	(0.5)	(0.5)	(0.9)	(1.0)
Other retirement benefits | International plans
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Net periodic benefit cost	$ 0.0	$ 0.0	$ 0.0	$ 0.0

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Benefit Plans - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Settlements	$ 0.1	$ 0.9	$ 0.7	$ 2.3
Pension benefits
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Settlements	$ 0.1	$ 0.9	$ 0.7	$ 2.3

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Other Expense (Income) - Other Expense (Income) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Other Income and Expenses [Abstract]
Restructuring and related charges	$ 1.0	$ 0.0	$ 2.2	$ 0.0
Fixed asset impairments and loss (gain) on sale of equipment	0.2	6.3	0.3	6.5
Contingent consideration	0.2	0.1	0.9	0.1
Foreign exchange transaction gains	(2.6)	(2.0)	(2.9)	(5.5)
Other items	(1.5)	(1.4)	0.7	(1.6)
Total other expense (income)	$ (2.7)	$ 3.0	$ 1.2	$ (0.5)

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Other Expense (Income) - Restructuring and Related Charges (Details) - USD ($) $ in Millions	1 Months Ended		3 Months Ended		6 Months Ended
	Jul. 31, 2020	Feb. 28, 2018	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Restructuring Reserve [Roll Forward]
Charges			$ 1.0	$ 0.0	$ 2.2	$ 0.0
2020 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and related activities, period of implementation	24 months
Restructuring and related cost, cumulative cost incurred	$ 6.8
Restructuring Reserve [Roll Forward]
Balance, December 31, 2020					4.6
Charges					2.2
Cash payments					(1.6)
Balance, June 30, 2021			5.2		5.2
2020 Restructuring Plan | Severance and benefits
Restructuring Reserve [Roll Forward]
Balance, December 31, 2020					4.6
Charges					1.0
Cash payments					(1.1)
Balance, June 30, 2021			4.5		4.5
2020 Restructuring Plan | Asset-related charges
Restructuring Reserve [Roll Forward]
Balance, December 31, 2020					0.0
Charges					0.0
Cash payments					0.0
Balance, June 30, 2021			0.0		0.0
2020 Restructuring Plan | Other charges
Restructuring Reserve [Roll Forward]
Balance, December 31, 2020					0.0
Charges					1.2
Cash payments					(0.5)
Balance, June 30, 2021			0.7		0.7
2020 Restructuring Plan | Minimum
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	15.0
2020 Restructuring Plan | Maximum
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	$ 17.0
2018 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and related activities, period of implementation		24 months
Restructuring and related cost, expected cost		$ 16.0
Restructuring and related cost, cumulative cost incurred			13.7		13.7
Restructuring Reserve [Roll Forward]
Balance, December 31, 2020					0.1
Cash payments					(0.1)
Balance, June 30, 2021			0.0		0.0
2018 Restructuring Plan | Severance and benefits
Restructuring Reserve [Roll Forward]
Balance, December 31, 2020					0.1
Cash payments					(0.1)
Balance, June 30, 2021			$ 0.0		$ 0.0

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Other Expense (Income) - Other Items (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Development and licensing income [Line Items]
Cost investment activity			$ 2.2
Gain on sale of investments	$ 1.3		1.3
Deferred income	40.0		40.0		$ 57.1
SmartDose
Development and licensing income [Line Items]
Development and licensing income	$ 0.2	$ 0.2	$ 0.4	$ 0.4

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Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 32.3	$ 16.0	$ 61.0	$ 31.0
Effective income tax rate	15.30%	15.60%	15.80%	16.40%

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Segment Information (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) segment	Jun. 30, 2020 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment			2
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	$ 723.6	$ 527.2	$ 1,394.3	$ 1,018.7
Operating profit	211.3	103.6	386.9	191.6
Stock-based compensation expense			(16.2)	(17.7)
Cost investment activity			(2.2)
Other expense, net	0.3	1.6	1.0	3.1
Income before income taxes	211.0	102.0	385.9	188.5
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit	234.9	132.7	433.9	238.7
Intersegment sales elimination
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	(0.1)	(0.1)	(0.2)	(0.2)
Corporate and Unallocated
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit	(23.6)	(29.1)	(47.0)	(47.1)
Stock-based compensation expense	(10.3)	(12.3)	(16.2)	(17.7)
Corporate general costs	(13.4)	(14.4)	(27.3)	(27.0)
Restructuring and severance related charges	(1.0)	(2.2)	(2.2)	(2.2)
Amortization of Acquisition-related Intangible Assets	(0.2)	(0.2)	(0.4)	(0.2)
Cost investment activity	1.3	0.0	(0.9)	0.0
Proprietary Products | Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	587.3	399.5	1,131.0	773.0
Operating profit	216.2	112.2	398.8	205.4
Contract-Manufactured Products | Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	136.4	127.8	263.5	245.9
Operating profit	$ 18.7	$ 20.5	$ 35.1	$ 33.3