Dayforce (DAY) 10-Q 13 Nov 23 2023 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2023	Nov. 02, 2023
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2023
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Trading Symbol	CDAY
Title of 12(b) Security	Common stock, $0.01 par value
Security Exchange Name	NYSE
Entity Registrant Name	Ceridian HCM Holding Inc.
Entity Central Index Key	0001725057
Entity Current Reporting Status	Yes
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Shell Company	false
Entity Interactive Data Current	Yes
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	001-38467
Entity Incorporation State Country Code	DE
Entity Tax Identification Number	46-3231686
Entity Address Address Line1	3311 East Old Shakopee Road
Entity Address City Or Town	Minneapolis
Entity Address State Or Province	MN
Entity Address Postal Zip Code	55425
City Area Code	952
Local Phone Number	853-8100
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		156,127,011

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Current assets:
Cash and equivalents	$ 510.3	$ 431.9
Restricted cash	0.8	0.8
Trade and other receivables, net	236.3	180.1
Prepaid expenses and other current assets	119.1	98
Total current assets before customer funds	866.5	710.8
Customer funds	5,048.1	4,729.5
Total current assets	5,914.6	5,440.3
Right of use lease assets, net	19.5	24.3
Property, plant, and equipment, net	211.1	174.9
Goodwill	2,270.7	2,280
Other intangible assets, net	244.9	281.6
Other assets	282.4	262.4
Total assets	8,943.2	8,463.5
Current liabilities:
Current portion of long-term debt	7.5	7.8
Current portion of long-term lease liabilities	6.9	10
Accounts payable	66.5	54.3
Deferred revenue	47.8	41.2
Employee compensation and benefits	75.5	97.4
Other accrued expenses	41.5	24
Total current liabilities before customer funds obligations	245.7	234.7
Customer funds obligations	5,165.8	4,845.1
Total current liabilities	5,411.5	5,079.8
Long-term debt, less current portion	1,210.9	1,213.4
Employee benefit plans	12.1	17.7
Long-term lease liabilities, less current portion	20.4	23.7
Other liabilities	21.4	19.5
Total liabilities	6,676.3	6,354.1
Commitments and contingencies (Note 13)
Stockholders’ equity:
Common stock, $0.01 par, 500,000,000 shares authorized, 155,978,986 and 153,856,645 shares issued and outstanding, respectively	1.6	1.5
Additional paid in capital	3,123.8	2,965.5
Accumulated deficit	(363.4)	(372.6)
Accumulated other comprehensive loss	(495.1)	(485)
Total stockholders’ equity	2,266.9	2,109.4
Total liabilities and stockholders' equity	$ 8,943.2	$ 8,463.5

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Common Stock, par value	$ 0.01	$ 0.01
Common Stock, shares authorized	500,000,000	500,000,000
Common Stock, shares issued	155,978,986	153,856,645
Common Stock, shares outstanding	155,978,986	153,856,645

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenue:
Total revenue	$ 377.5	$ 315.6	$ 1,114	$ 910.1
Cost of revenue:
Recurring	80.5	77.1	239.4	234.4
Professional services and other	66.1	61	197	172.6
Product development and management	53.3	44.8	153.5	125
Depreciation and amortization	17.1	13.7	47.4	40
Total cost of revenue	217	196.6	637.3	572
Gross profit	160.5	119	476.7	338.1
Selling, general, and administrative	134	122.7	382.4	367.2
Operating profit (loss)	26.5	(3.7)	94.3	(29.1)
Interest expense, net	8.9	7.4	27.2	19.9
Other expense, net	5.1	5.9	6.6	11.4
Income (loss) before income taxes	12.5	(17)	60.5	(60.4)
Income tax expense	16.3	4	51.3	7.8
Net (loss) income	$ (3.8)	$ (21)	$ 9.2	$ (68.2)
Net (loss) income per share:
Basic	$ (0.02)	$ (0.14)	$ 0.06	$ (0.45)
Diluted	$ (0.02)	$ (0.14)	$ 0.06	$ (0.45)
Weighted-average shares outstanding:
Basic	155,693,712	153,184,846	155,026,472	152,691,008
Diluted	155,693,712	153,184,846	158,184,807	152,691,008
Recurring [Member]
Revenue:
Total revenue	$ 325.4	$ 263.8	$ 958.2	$ 762.8
Professional Services and Other [Member]
Revenue:
Total revenue	$ 52.1	$ 51.8	$ 155.8	$ 147.3

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net (loss) income		$ (3.8)	$ (21)	$ 9.2	$ (68.2)
Items of other comprehensive loss before income taxes:
Change in foreign currency translation adjustment		(19)	(48.5)	(12.3)	(80.3)
Change in unrealized loss from invested customer funds		(6.8)	(33)	(1.5)	(139.9)
Change in pension liability adjustment	[1]	1.5	2.9	4.5	8.9
Other comprehensive loss before income taxes		(24.3)	(78.6)	(9.3)	(211.3)
Income tax (benefit) expense, net		(1.4)	(8)	0.8	(34.8)
Other comprehensive loss after income taxes		(22.9)	(70.6)	(10.1)	(176.5)
Comprehensive loss		$ (26.7)	$ (91.6)	$ (0.9)	$ (244.7)
[1] The amount of the pension liability adjustment recognized in the condensed consolidated statements of operations within other expense, net was $ 1.5 million and $ 2.9 million during the three months ended September 30, 2023, and 2022, respectively and $ 4.5 million and $ 8.7 million during the nine months ended September 30, 2023, and 2022 , respectively.

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Other Expense, Net [Member]
Pension liability adjustment	$ 1.5	$ 2.9	$ 4.5	$ 8.7

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Millions	Total	Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock [Member]	Additional Paid In Capital [Member]	Additional Paid In Capital [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Accumulated Deficit [Member]	Accumulated Deficit [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Accumulated Other Comprehensive Loss [Member]
Beginning balance at Dec. 31, 2021	$ 2,227.5	$ (67.7)	$ 1.5	$ 2,860	$ (77.7)	$ (309.2)	$ 10	$ (324.8)
Balance, shares at Dec. 31, 2021			151,995,031
Accounting Standards Update [Extensible List]	ASU 2020-06 [Member]
Net (loss) income	$ (27.4)					(27.4)
Issuance of common stock under share-based compensation plans	6			6
Issuance of common stock under share-based compensation plans, shares			535,418
Share-based compensation	35.5			35.5
Foreign currency translation	15.6							15.6
Change in unrealized gain (loss), net of tax	(51)							(51)
Change in pension liability adjustment, net of tax	2.3							2.3
Ending balance at Mar. 31, 2022	2,140.8		$ 1.5	2,823.8		(326.6)		(357.9)
Balance, shares at Mar. 31, 2022			152,530,449
Beginning balance at Dec. 31, 2021	2,227.5	$ (67.7)	$ 1.5	2,860	$ (77.7)	(309.2)	$ 10	(324.8)
Balance, shares at Dec. 31, 2021			151,995,031
Net (loss) income	(68.2)
Ending balance at Sep. 30, 2022	2,051.2		$ 1.5	2,918.4		(367.4)		(501.3)
Balance, shares at Sep. 30, 2022			153,526,336
Beginning balance at Mar. 31, 2022	2,140.8		$ 1.5	2,823.8		(326.6)		(357.9)
Balance, shares at Mar. 31, 2022			152,530,449
Net (loss) income	(19.8)					(19.8)
Issuance of common stock under share-based compensation plans	7.3			7.3
Issuance of common stock under share-based compensation plans, shares			503,145
Share-based compensation	38.8			38.8
Foreign currency translation	(47.4)							(47.4)
Change in unrealized gain (loss), net of tax	(27.5)							(27.5)
Change in pension liability adjustment, net of tax	2.1							2.1
Ending balance at Jun. 30, 2022	2,094.3		$ 1.5	2,869.9		(346.4)		(430.7)
Balance, shares at Jun. 30, 2022			153,033,594
Net (loss) income	(21)					(21)
Issuance of common stock under share-based compensation plans	9.3			9.3
Issuance of common stock under share-based compensation plans, shares			492,742
Share-based compensation	39.2			39.2
Foreign currency translation	(48.5)							(48.5)
Change in unrealized gain (loss), net of tax	(24.2)							(24.2)
Change in pension liability adjustment, net of tax	2.1							2.1
Ending balance at Sep. 30, 2022	2,051.2		$ 1.5	2,918.4		(367.4)		(501.3)
Balance, shares at Sep. 30, 2022			153,526,336
Beginning balance at Dec. 31, 2022	2,109.4		$ 1.5	2,965.5		(372.6)		(485)
Balance, shares at Dec. 31, 2022			153,856,645
Net (loss) income	9.9					9.9
Issuance of common stock under share-based compensation plans	14.8		$ 0.1	14.7
Issuance of common stock under share-based compensation plans, shares			1,150,281
Share-based compensation	40.2			40.2
Foreign currency translation	1.2							1.2
Change in unrealized gain (loss), net of tax	17.6							17.6
Change in pension liability adjustment, net of tax	1.1							1.1
Ending balance at Mar. 31, 2023	2,194.2		$ 1.6	3,020.4		(362.7)		(465.1)
Balance, shares at Mar. 31, 2023			155,006,926
Beginning balance at Dec. 31, 2022	2,109.4		$ 1.5	2,965.5		(372.6)		(485)
Balance, shares at Dec. 31, 2022			153,856,645
Net (loss) income	9.2
Ending balance at Sep. 30, 2023	2,266.9		$ 1.6	3,123.8		(363.4)		(495.1)
Balance, shares at Sep. 30, 2023			155,978,986
Beginning balance at Mar. 31, 2023	2,194.2		$ 1.6	3,020.4		(362.7)		(465.1)
Balance, shares at Mar. 31, 2023			155,006,926
Net (loss) income	3.1					3.1
Issuance of common stock under share-based compensation plans	8.5			8.5
Issuance of common stock under share-based compensation plans, shares			522,795
Share-based compensation	41.5			41.5
Foreign currency translation	5.5							5.5
Change in unrealized gain (loss), net of tax	(13.7)							(13.7)
Change in pension liability adjustment, net of tax	1.1							1.1
Ending balance at Jun. 30, 2023	2,240.2		$ 1.6	3,070.4		(359.6)		(472.2)
Balance, shares at Jun. 30, 2023			155,529,721
Net (loss) income	(3.8)					(3.8)
Issuance of common stock under share-based compensation plans	17.1			17.1
Issuance of common stock under share-based compensation plans, shares			449,265
Share-based compensation	36.3			36.3
Foreign currency translation	(19)							(19)
Change in unrealized gain (loss), net of tax	(5)							(5)
Change in pension liability adjustment, net of tax	1.1							1.1
Ending balance at Sep. 30, 2023	$ 2,266.9		$ 1.6	$ 3,123.8		$ (363.4)		$ (495.1)
Balance, shares at Sep. 30, 2023			155,978,986

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Stockholders' Equity (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022
Statement of Stockholders' Equity [Abstract]
Change in unrealized (loss) gain, tax	$ 1.8	$ 4.9	$ (6.3)	$ (8.8)	$ (10)	$ (18.4)
Change in pension liability adjustment, tax	$ (0.4)	$ (0.4)	$ (0.4)	$ 0.8	$ 0.8	$ 0.8

Condensed Consolidated Statem_6

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Statement of Cash Flows [Abstract]
Net income (loss)	$ 9.2	$ (68.2)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Deferred income tax expense	13.9	5.1
Depreciation and amortization	84.1	64.4
Amortization of debt issuance costs and debt discount	3.3	3
Provision for doubtful accounts	4.2	2.2
Net periodic pension and postretirement cost	0.9	3.6
Share-based compensation expense	118	113.5
Change in fair value of contingent consideration	11.8	3.2
Other	0.3
Changes in operating assets and liabilities:
Trade and other receivables	(62)	(16.2)
Prepaid expenses and other current assets	(20.1)	(14)
Accounts payable and other accrued expenses	8.5	4.5
Deferred revenue	7.5	(3.5)
Employee compensation and benefits	(23.2)	(2.8)
Accrued interest	(0.1)	(0.3)
Accrued taxes	11	(0.1)
Other assets and liabilities	(37.7)	(3.6)
Net cash provided by operating activities	129.6	90.8
Cash Flows from Investing Activities
Purchase of customer funds marketable securities	(252)	(534.3)
Proceeds from sale and maturity of customer funds marketable securities	326.4	304.2
Expenditures for property, plant, and equipment	(15.4)	(10.4)
Expenditures for software and technology	(72.9)	(54.5)
Other	(1)
Net cash used in investing activities	(14.9)	(295)
Cash Flows from Financing Activities
Increase in customer funds obligations, net	311	706.9
Proceeds from issuance of common stock under share-based compensation plans	40.3	22.6
Repayment of long-term debt obligations	(6)	(6.3)
Net cash provided by financing activities	345.3	723.2
Effect of exchange rate changes on cash, restricted cash, and equivalents	5.1	(37.8)
Net increase in cash, restricted cash, and equivalents	465.1	481.2
Cash, restricted cash, and equivalents at beginning of period	3,151.2	2,643.3
Cash, restricted cash, and equivalents at end of period	3,616.3	3,124.5
Reconciliation of cash, restricted cash, and equivalents to the condensed consolidated balance sheets
Cash and equivalents	510.3	408.4
Restricted cash	0.8	0.8
Restricted cash and equivalents included in customer funds	3,105.2	2,715.3
Total cash, restricted cash, and equivalents	$ 3,616.3	$ 3,124.5

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Pay vs Performance Disclosure
Net Income (Loss)	$ (3.8)	$ 3.1	$ 9.9	$ (21)	$ (19.8)	$ (27.4)	$ 9.2	$ (68.2)

Insider Trading Arrangements

Insider Trading Arrangements	9 Months Ended
	Sep. 30, 2023 shares
Trading Arrangements, by Individual
Material Terms of Trading Arrangement	Insider Adoption or Termination of Trading Arrangements On September 19, 2023 , Christopher Armstrong , Executive Vice President, Chief Operating Officer of the Company, adopted a “ Rule 10b5-1 trading arrangement ” as defined in Regulation S-K Item 408 (the “Armstrong Plan”). The Armstrong Plan provides for the potential sale of up to 143,336 shares of the Company’s common stock, subject to certain conditions, from March 22, 2024 through September 13, 2024. The entry into the Armstrong Plan was effected within the Company’s open trading window periods and was done in compliance with the Company’s insider trading policy. Other than the aforementioned, during the fiscal quarter ended September 30, 2023 , none of the Company’s directors or officers adopted or terminated any contract, instruction, or written plan for the purchase or sale of Company securities that was intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) or any non-Rule 10b5-1 trading arrangement.
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false
Christopher Armstrong [Member]
Trading Arrangements, by Individual
Name	Christopher Armstrong
Title	Executive Vice President, Chief Operating Officer
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	September 19, 2023
Aggregate Available	143,336

Organization

Organization	9 Months Ended
	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	1. Organization Ceridian HCM Holding Inc. and its subsidiaries (also referred to in this report as “Ceridian,” “we,” “our,” “us,” or the “Company”) offer a broad range of services and software designed to help employers more effectively manage employment processes, such as payroll, payroll-related tax filing, human resource information systems, employee self-service, time and labor management, employee assistance programs, and recruitment and applicant screening. Our technology-based services are typically provided through long-term customer relationships that result in a high level of recurring revenue. While we operate in 18 countries globally, our operations are primarily located in the United States and Canada.

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2023
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. Summary of Si gnificant Accounting Policies Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information. Accordingly, the unaudited condensed consolidated financial statements do not include all of the information and notes required by GAAP for complete financial statements. The accounting policies we follow are set forth in Note 2, “Summary of Significant Accounting Policies,” to our audited consolidated financial statements in our 2022 Form 10-K . The following notes should be read in conjunction with these policies and other disclosures in our 2022 Form 10-K. In the opinion of management, the unaudited condensed consolidated financial statements contained herein reflect all adjustments (consisting only of normal recurring adjustments, except as set forth in these notes to the condensed consolidated financial statements) necessary to present fairly in all material respects the financial position, results of operations, comprehensive income (loss), and cash flows from all periods presented. Interim results are not necessarily indicative of results for a full year. Immaterial Correction of Prior Period Error We recently discovered an error in the presentation of one Canadian bank account balance within “customer funds” and “customer funds obligations” and related items on the Company’s condensed consolidated balance sheet as of December 31, 2022 and in the Company’s net cash provided by financing activities within its condensed consolidated statement of cash flows for the nine months ended September 30, 2022. There was an understatement of customer funds within current assets and a corresponding understatement of customer funds obligations within current liabilities on the Company’s condensed consolidated balance sheets. As a result, the Company also erroneously presented certain changes related to customer funds and customer funds obligations on the Company’s condensed consolidated statements of cash flows. The line items affected include “customer funds” and “customer funds obligations” on our condensed consolidated balance sheets. The line items affected also include “increase (decrease) in customer funds obligations, net,” effect of exchange rate changes on cash, restricted cash, and equivalents,” “cash, restricted cash, and equivalents,” and “restricted cash and equivalents included in customer funds,” and “effect of exchange rate changes on cash, restricted cash, and equivalents” on our condensed consolidated statements of cash flows. The amounts impacted by the correction are summarized as follows: Condensed Consolidated Balance Sheets (Selected financial statement line items only) December 31, 2022 As reported As restated Change (Dollars in millions) Customer funds $ 4,183.2 $ 4,729.5 $ 546.3 Customer funds obligations 4,298.8 4,845.1 546.3 Condensed Consolidated Statements of Cash Flows (Selected financial statement line items only) Nine Months Ended September 30, 2022 As reported As restated Change (Dollars in millions) Increase in customer funds obligations, net $ 1,010.4 $ 706.9 $ ( 303.5 ) Effect of exchange rate changes on cash, restricted cash, and equivalents ( 8.1 ) ( 37.8 ) ( 29.7 ) Cash, restricted cash, and equivalents at beginning of period 1,952.8 2,643.3 690.5 Cash, restricted cash, and equivalents at end of period 2,767.2 3,124.5 357.3 Restricted cash and equivalents included in customer funds 2,358.0 2,715.3 357.3 Deferred Costs Deferred costs, which primarily consist of deferred sales commissions, included within other assets on our condensed consolidated balance sheets were $ 176.7 million and $ 151.2 million as of September 30, 2023, and December 31, 2022 , respectively. Amortization expense for the deferred costs was $ 5.3 million and $ 13.1 million for the three months ended September 30, 2023, and 2022 , respectively, and $ 15.0 million and $ 38.5 million for the nine months ended September 30, 2023, and 2022 , respectively. Recently Issued and Adopted Accounting Pronouncements from the Financial Accounting Standards Board There were no recently adopted accounting standards that had a material effect on our condensed consolidated financial statements and accompanying disclosures, and no recently issued accounting standards that are expected to have a material impact on our condensed consolidated financial statements and accompanying disclosures.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2023
Fair Value Disclosures [Abstract]
Fair Value Measurements	3. Fair Value Measurements Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis Our financial assets and liabilities measured at fair value on a recurring basis were categorized as follows: September 30, 2023 Level 1 Level 2 Level 3 Total (Dollars in millions) Assets Available for sale customer funds assets $ — $ 1,942.9 (a) $ — $ 1,942.9 Total assets measured at fair value $ — $ 1,942.9 $ — $ 1,942.9 Liabilities DataFuzion contingent consideration $ — $ — $ 22.4 (b) $ 22.4 Total liabilities measured at fair value $ — $ — $ 22.4 $ 22.4 December 31, 2022 Level 1 Level 2 Level 3 Total (Dollars in millions) Assets Available for sale customer funds assets $ — $ 2,011.0 (a) $ — $ 2,011.0 Total assets measured at fair value $ — $ 2,011.0 $ — $ 2,011.0 Liabilities DataFuzion contingent consideration $ — $ — $ 10.6 (b) $ 10.6 Total liabilities measured at fair value $ — $ — $ 10.6 $ 10.6 (a) Fair value is based on inputs that are observable for the asset or liability, other than quoted prices. (b) For the contingent consideration related to the 2021 acquisition of certain assets and liabilities of DataFuzion HCM, Inc. ("DataFuzion"), we utilize an option pricing model, specifically a Black-Scholes-Merton model, to estimate the fair value of the contingent liability as of the reporting dates. This model uses certain assumptions related to risk-free rates and volatility as well as certain judgments in forecasting annual recurring revenue. The contingent consideration has been measured as Level 3 given the unobservable inputs that are significant to the measurement of liability. As of September 30, 2023, $ 11.0 million of the contingent consideration is included within other accrued expenses in our condensed consolidated balance sheets and as of September 30, 2023 and December 31, 2022, $ 11.4 million and $ 10.6 million of the contingent consideration is included within other liabilities in our condensed consolidated balance sheets, respectively. Due to the remeasurement of the DataFuzion contingent consideration, we recognized expense of $ 4.6 million and $ 1.2 million for the three months ended September 30, 2023, and 2022, respectively, and $ 11.8 million and $ 3.2 million for the nine months ended September 30, 2023, and 2022, respectively, within selling, general, and administrative expense in our condensed consolidated statements of operations. Financial Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis During the nine months ended September 30, 2023 and year ended December 31, 2022 , we did not re-measure any financial assets or liabilities at fair value on a nonrecurring basis.

Customer Funds

Customer Funds	9 Months Ended
	Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]
Customer Funds	4. Cust omer Funds Overview In certain jurisdictions, we collect funds for payment of payroll and taxes; temporarily hold such funds until payment is due; remit the funds to the customers’ employees and appropriate taxing authorities; file federal, state, and local tax returns; and handle related regulatory correspondence and amendments. The customer assets are held in segregated accounts intended for the specific purpose of satisfying customer funding obligations and therefore are not freely available for our general business use. In the U.S. and Canada, these customer funds are held in trusts. Our customer funds are held and invested with the primary objectives being to protect the principal balance and to ensure adequate liquidity to meet cash flow requirements. Accordingly, we maintain on average approximately 45 % to 55 % of customer funds in liquidity portfolios with maturities ranging from one to 120 days, consisting of high-quality bank deposits, money market mutual funds, commercial paper, or collateralized short-term investments; and we maintain on average approximately 45 % to 55 % of customer funds in fixed income portfolios with maturities ranging from 120 days to 10 years, consisting of U.S. Treasury and agency securities, Canada government and provincial securities, as well as highly rated asset-backed, mortgage-backed, municipal, corporate, and bank securities. To maintain sufficient liquidity to meet payment obligations, we also have financing arrangements and may pledge fixed income securities for short-term financing. Financial Statement Presentation Investment income from invested customer funds, also referred to as float revenue or float, is a component of our compensation for providing services under agreements with our customers. Investment income from invested customer funds included in recurring revenue was $ 38.8 million and $ 21.3 million for the three months ended September 30, 2023, and 2022, respectively, and $ 127.5 million and $ 47.4 million for nine months ended September 30, 2023, and 2022, respectively. Investment income includes interest income, realized gains and losses from sales of customer funds’ investments, and unrealized credit losses determined to be unrecoverable. The amortized cost of customer funds as of September 30, 2023, and December 31, 2022 , is the original cost of assets acquired. The amortized cost and fair values of investments of customer funds available for sale were as follows: September 30, 2023 Amortized Gross Unrealized Fair Cost Gain Loss Value (Dollars in millions) Money market securities, investments carried at cost $ 3,093.8 $ — $ — $ 3,093.8 Available for sale investments: U.S. government and agency securities 731.0 — ( 50.6 ) 680.4 Canadian and provincial government securities 383.3 — ( 20.8 ) 362.5 Corporate debt securities 629.6 0.1 ( 36.0 ) 593.7 Asset-backed securities 195.7 — ( 6.2 ) 189.5 Mortgage-backed securities 31.6 — ( 1.3 ) 30.3 Other short-term investments 15.9 — — 15.9 Other securities 75.2 — ( 4.6 ) 70.6 Total available for sale investments 2,062.3 0.1 ( 119.5 ) 1,942.9 Invested customer funds 5,156.1 $ 0.1 $ ( 119.5 ) 5,036.7 Receivables 11.6 11.4 Total customer funds $ 5,167.7 $ 5,048.1 December 31, 2022 Amortized Gross Unrealized Fair Cost Gain Loss Value (Dollars in millions) Money market securities, investments carried at cost $ 2,698.7 $ — $ — $ 2,698.7 Available for sale investments: U.S. government and agency securities 721.3 — ( 53.1 ) 668.2 Canadian and provincial government securities 438.7 0.1 ( 17.8 ) 421.0 Corporate debt securities 653.8 0.5 ( 35.5 ) 618.8 Asset-backed securities 169.6 0.1 ( 6.1 ) 163.6 Mortgage-backed securities 14.5 — ( 0.7 ) 13.8 Other short-term investments 57.0 — — 57.0 Other securities 74.4 — ( 5.9 ) 68.6 Total available for sale investments 2,129.3 0.7 ( 119.1 ) 2,011.0 Invested customer funds 4,828.0 $ 0.7 $ ( 119.1 ) 4,709.7 Receivables 20.0 19.8 Total customer funds $ 4,848.0 $ 4,729.5 The following represents the gross unrealized losses and the related fair value of the investments of customer funds available for sale, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position. September 30, 2023 Less than 12 months 12 months or more Total Unrealized Fair Unrealized Fair Unrealized Fair (Dollars in millions) U.S. government and agency securities $ ( 2.0 ) $ 103.3 $ ( 48.6 ) $ 574.0 $ ( 50.6 ) $ 677.3 Canadian and provincial government securities ( 4.0 ) 118.1 ( 16.8 ) 242.1 ( 20.8 ) 360.2 Corporate debt securities ( 3.3 ) 136.5 ( 32.7 ) 460.3 ( 36.0 ) 596.8 Asset-backed securities ( 1.4 ) 75.9 ( 4.8 ) 102.0 ( 6.2 ) 177.9 Mortgage-backed securities ( 0.3 ) 18.3 ( 1.0 ) 11.9 ( 1.3 ) 30.2 Other securities ( 0.1 ) 2.8 ( 4.5 ) 66.9 ( 4.6 ) 69.7 Total available for sale investments $ ( 11.1 ) $ 454.9 $ ( 108.4 ) $ 1,457.2 $ ( 119.5 ) $ 1,912.1 Management does not believe that any individual unrealized loss was unrecoverable as of September 30, 2023. The unrealized losses are primarily attributable to changes in interest rates and not to credit deterioration. We currently do not intend to sell or expect to be required to sell the securities before the time required to recover the amortized cost. The amortized cost and fair value of investment securities available for sale at September 30, 2023, by contractual maturity are shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or to prepay obligations with or without call or prepayment penalties. September 30, 2023 Cost Fair Value (Dollars in millions) Due in one year or less $ 3,444.8 $ 3,438.5 Due in one to three years 857.6 801.9 Due in three to five years 758.2 704.6 Due after five years 95.5 91.7 Invested customer funds $ 5,156.1 $ 5,036.7

Leases

Leases	9 Months Ended
	Sep. 30, 2023
Leases [Abstract]
Leases	5. Leases Supplemental balance sheet information related to leases was as follows: Lease Type Balance Sheet Classification September 30, 2023 December 31, 2022 (Dollars in millions) ASSETS Operating lease assets Trade and other receivables, net $ 0.9 $ 0.1 Operating lease assets Prepaid expenses and other current assets 2.7 2.8 Operating lease assets Right of use lease assets, net 19.5 24.3 Financing lease assets Property, plant, and equipment, net 6.0 7.0 Total lease assets $ 29.1 $ 34.2 LIABILITIES Current Financing lease liabilities Current portion of long-term debt $ 0.8 $ 1.0 Operating lease liabilities Current portion of long-term lease liabilities 6.9 10.0 Noncurrent Financing lease liabilities Long-term debt, less current portion 6.7 7.4 Operating lease liabilities Long-term lease liabilities, less current portion 20.4 23.7 Total lease liabilities $ 34.8 $ 42.1 The components of lease expense were as follows: Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Lease Cost (Dollars in millions) Operating lease cost $ 2.1 $ 2.5 $ 7.0 $ 7.4 Financing lease cost: Depreciation of lease assets 0.4 0.3 1.3 1.0 Interest on lease liabilities — 0.1 0.2 0.3 Sublease income ( 0.1 ) ( 0.1 ) ( 0.3 ) ( 0.3 ) Total lease cost, net $ 2.4 $ 2.8 $ 8.2 $ 8.4

Goodwill and Intangible Assets

Goodwill and Intangible Assets	9 Months Ended
	Sep. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets, Net	6. Goodwill and Other Intangible Assets, Net Goodwill Goodwill and changes therein were as follows: (Dollars in millions) Balance at December 31, 2022 $ 2,280.0 Foreign currency translation ( 9.3 ) Balance at September 30, 2023 $ 2,270.7 Other Intangible Assets, Net Other intangible assets, net consisted of the following: September 30, 2023 Gross Carrying Accumulated Net Estimated Life (Dollars in millions) Customer lists and relationships $ 295.7 $ ( 234.2 ) $ 61.5 4 - 12 Trade name 183.0 ( 20.1 ) 162.9 2 - 5 and Indefinite Technology 211.5 ( 191.0 ) 20.5 3 - 5 Total other intangible assets $ 690.2 $ ( 445.3 ) $ 244.9 December 31, 2022 Gross Carrying Accumulated Net Estimated Life (Dollars in millions) Customer lists and relationships $ 299.8 $ ( 228.6 ) $ 71.2 4 - 12 Trade name 183.4 ( 4.7 ) 178.7 3 - 5 and Indefinite Technology 213.5 ( 181.8 ) 31.7 3 - 5 Total other intangible assets $ 696.7 $ ( 415.1 ) $ 281.6 In the third quarter of 2023, our Board of Directors approved plans to transition our Company’s name and branding to Dayforce. Given the significance of this transition, we assessed the impact on the carrying amount of $ 167.2 million related to our Ceridian® trade name intangible asset to determine whether an impairment exists, and/or if the asset is deemed to have a finite life and should be amortized. It was determined that the Ceridian trade name is not impaired, but the asset is now deemed to have a finite life of two years and began being amortized in the third quarter of 2023. As of October 1 each year, we perform an impairment assessment of our Dayforce® trade name indefinite-lived intangible asset, which has a carrying value of $ 4.4 million as of September 30, 2023. We continue to evaluate the use of this trade name in our sales and marketing efforts. If there is a fundamental shift in the method of our branding in the future, we will assess the impact on the carrying amount of this asset to determine whether an impairment exists. If it is determined that an impairment has occurred, it would be recognized during the period in which the decision was made to make the fundamental shift. Amortization expense related to definite-lived intangible assets was $ 20.5 million and $ 7.5 million for the three months ended September 30, 2023, and 2022, respectively, and $ 32.7 million and $ 22.9 million for the nine months ended September 30, 2023, and 2022 , respectively.

Debt

Debt	9 Months Ended
	Sep. 30, 2023
Debt Disclosure [Abstract]
Debt	7. D ebt Overview Our debt obligations consisted of the following: September 30, December 31, 2023 2022 (Dollars in millions) Term Debt, interest rate of 7.9 % and 6.9 %, respectively $ 646.0 $ 651.1 Revolving Credit Facility ($ 300 million available capacity less amounts reserved for letters of credit, which were $ 1.2 million and $ 1.4 million, respectively) — — Convertible Senior Notes, interest rate of 0.25 % 575.0 575.0 Australia Line of Credit (AUD $ 0.7 million and $ 1.5 million letter of credit capacity, 0.5 million and USD $ 1.0 million, — — Financing lease liabilities (Note 5) 7.5 8.4 Total debt 1,228.5 1,234.5 Less unamortized discount on Term Debt 0.5 0.6 Less unamortized debt issuance costs on Term Debt and Convertible Senior Notes 9.6 12.7 Less current portion of long-term debt 7.5 7.8 Long-term debt, less current portion $ 1,210.9 $ 1,213.4 Accrued interest and fees related to the debt obligati ons was $ 0.5 million and $ 0.7 million as of September 30, 2023 and December 31, 2022, respectively, and is included within other accrued expenses in our condensed consolidated balance sheets. Senior Secured Credit Facility On April 30, 2018, we completed the refinancing of our debt by entering into a new credit agreement. Pursuant to the terms of the new credit agreement, we became borrower of (i) a $ 680.0 million term loan debt facility (the “Term Debt”) and (ii) a $ 300.0 million revolving credit facility (the “Revolving Credit Facility”, and collectively with the Term Debt, the “Senior Secured Credit Facility”). Our obligations under the Senior Secured Credit Facility are secured by first priority security interests in substantially all of our assets and the domestic subsidiary guarantors, subject to permitted liens and certain exceptions. The Term Debt and Revolving Credit Facility will mature on April 30, 2025 and January 29, 2025 , respectively. We are required to make annual amortization payments in respect of the Term Debt in an amount equal to 1.00 % of the original principal amount thereof, payable in equal quarterly installments of 0.25 % of the original principal amount of the first lien term debt. On August 1, 2023, we completed the third amendment to our Senior Secured Credit Facility, which replaced LIBOR with Secured Overnight Financing Rate ("SOFR"). All outstanding LIBOR borrowings under the Senior Secured Credit Facility will continue to bear interest at LIBOR until the end of the current interest period or payment period. The Revolving Credit Facility does not require amortization payments. Convertible Senior Notes In March 2021, we issued $ 575.0 million in aggregate principal amount of 0.25 % Convertible Senior Notes due 2026 in a private offering to qualified institutional buyers pursuant to Rule 144A promulgated under the Securities Act, and pursuant to exemptions from the prospectus requirements of applicable Canadian securities laws, including the exercise in full by the initial purchasers of their option to purchase an additional $ 75.0 million in aggregate principal amount of 0.25 % Convertible Senior Notes due 2026 (collectively, the “Convertible Senior Notes”). The Convertible Senior Notes bear interest at a rate of 0.25 % per year and interest is payable semiannually in arrears on March 15 and September 15 of each year, beginning on September 15, 2021 . The Convertible Senior Notes mature on March 15, 2026 , unless earlier converted, redeemed, or repurchased. The total net proceeds from the offering, after deducting initial purchase discounts and other debt issuance costs, were $ 561.8 million. The following table presents details of the Convertible Senior Notes: Initial Conversion Rate per $ 1,000 Principal Initial Conversion Price per Share Convertible Senior Notes 7.5641 shares $ 132.20 The Convertible Senior Notes will be convertible at the option of the holders at any time only under certain circumstances as outlined in Note 9, “Debt,” to our audited consolidated financial statements in our 2022 Form 10-K . The conditions allowing holders of the Convertible Senior Notes to convert have not been met and therefore were not convertible as of September 30, 2023. On December 30, 2021, we notified the holders of the Convertible Senior Notes of our irrevocable election to settle the conversion obligation in connection with the Convertible Senior Notes submitted for conversion on or after January 1, 2022, or at maturity with a combination of cash and shares of our common stock. Generally, under this settlement method, the conversion value will be settled in cash in an amount no less than the principal amount being converted, and any excess of the conversion value over the principal amount will be settled, at our election, in cash or shares of common stock. The Convertible Senior Notes are accounted for as a single liability, and the carrying amount of the Convertible Senior Notes was $ 567.5 million as of September 30, 2023, with principal of $ 575.0 million , net of issuance costs of $ 7.5 million . The Convertible Senior Notes are included within Long-term debt, less current portion in our condensed consolidated balance sheets as of September 30, 2023 . The issuance costs related to the Convertible Senior Notes are being amortized to interest expense over the contractual term of the Convertible Senior Notes at an effective interest rate of 5.1 %. Interest expense recognized related to the Convertible Senior Notes was as follows: Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 (Dollars in millions) Contractual interest expense $ 0.4 $ 0.4 $ 1.1 $ 1.0 Amortization of debt issuance costs 0.7 0.6 2.1 2.0 Total $ 1.1 $ 1.0 $ 3.2 $ 3.0 Capped Calls In March 2021, in connection with the pricing of the Convertible Senior Notes, we entered into capped call transactions with the option counterparties (the “Capped Calls”). The Capped Calls each have an initial strike price of $ 132.20 per share, and an initial cap price of $ 179.26 per share, both subject to certain adjustments. The capped call transactions are generally expected to reduce potential dilution to our common stock upon any conversion of the Convertible Senior Notes and/or offset any potential cash payments we would be required to make in excess of the principal amount of converted Convertible Senior Notes, as the case may be, with such reduction and/or offset subject to a cap based on the cap price. For accounting purposes, the Capped Calls are separate transactions, and not part of the terms of the Convertible Senior Notes. As the Capped Calls qualify for a scope exception from derivative accounting for instruments that are both indexed to the issuer's own stock and classified in stockholder’s equity in our condensed consolidated balance sheet, we have recorded an amount of $ 33.0 million as a reduction to additional paid-in capital which will not be remeasured. This represents the premium of $ 45.0 million paid for the purchase of the Capped Calls, net of the deferred tax impact of $ 12.0 million. Future Payments and Maturities of Debt The future principal payments and maturities of our indebtedness, excluding financing lease obligations, are as follows: Years Ending December 31, Amount (Dollars in millions) 2023 $ 1.7 2024 6.8 2025 637.5 2026 575.0 $ 1,221.0 Fair Value of Debt Our debt does not trade in active markets and was considered to be a Level 2 measurement at September 30, 2023 . The fair value of the Term Debt was based on the borrowing rates currently available to us for bank loans with similar terms and average maturities and the limited trades of our debt. The fair value of the Convertible Senior Notes was determined based on the closing trading price per $ 1,000 of the Convertible Senior Notes as of the last day of trading for the period and is primarily affected by the trading price of our common stock and market interest rates. The fair value of our debt was estimated to be $ 1,151.9 million and $ 1,142.3 million as of September 30, 2023, and December 31, 2022 , respectively.

Employee Benefit Plans

Employee Benefit Plans	9 Months Ended
	Sep. 30, 2023
Retirement Benefits [Abstract]
Employee Benefit Plans	8. Employee Benefit Plans The components of net periodic cost (gain) for our defined benefit pension plan and for our postretirement benefit plan are included in the following tables: Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Net Periodic Pension Cost (Dollars in millions) Interest cost $ 4.2 $ 2.2 $ 12.8 $ 6.6 Actuarial loss amortization 2.0 3.4 6.2 10.2 Less: Expected return on plan assets ( 5.6 ) ( 4.0 ) ( 16.7 ) ( 11.9 ) Net periodic pension cost $ 0.6 $ 1.6 $ 2.3 $ 4.9 Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Net Periodic Postretirement Benefit (Dollars in millions) Interest cost $ 0.1 $ 0.1 $ 0.3 $ 0.2 Actuarial gain amortization ( 0.5 ) ( 0.5 ) ( 1.7 ) ( 1.5 ) Net periodic postretirement benefit gain $ ( 0.4 ) $ ( 0.4 ) $ ( 1.4 ) $ ( 1.3 )

Share-Based Compensation

Share-Based Compensation	9 Months Ended
	Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]
Share-Based Compensation	9. Share-Based Compensation Our share-based compensation consists of stock options, restricted stock units (“RSU”), and performance stock units (“PSU”). We also offer an employee stock purchase plan. Under the 2013 Ceridian HCM Holding Inc. Stock Incentive Plan, as amended ("2013 SIP") and Ceridian HCM Holding Inc. 2018 Equity Incentive Plan (as amended and restated from time to time, the “2018 EIP”), we have shares reserved for issuance of common stock to eligible employees and our Board of Directors. The 2018 EIP serves as a successor to the 2013 SIP as we ceased granting awards under the 2013 SIP as of April 24, 2018, and we do not intend to grant any additional awards under the 2013 SIP. Most of our equity awards under the 2018 EIP vest either annually or quarterly on a pro rata basis, generally over a one -, three -, four -, or five-year period or on a specific date if certain performance criteria are satisfied and certain equity values are attained. In addition, upon termination of service, all vested awards must be exercised generally within 90 days after termination, or these awards will be forfeited. The equity awards have a 10 -year contractual term, and the options have an exercise price that is not less than the fair market value of the underlying stock on the date of grant. As of September 30, 2023 , there were 738,370 stock options and RSUs outstanding under the 2013 SIP and there were 11,998,634 stock options, RSUs, and PSUs outstanding and 11,704,190 shares available for future grants of equity awards under the 2018 EIP. Total share-based compensation expense was $ 36.3 million and $ 39.2 million for the three months ended September 30, 2023, and 2022, respectively, and $ 118.0 million and $ 113.5 million for nine months ended September 30, 2023, and 2022, respectively. Performance-Based Stock Options Performance-based stock option activity was as follows: Shares Weighted Weighted Aggregate Outstanding at December 31, 2022 1,760,438 $ 66.10 7.4 $ 0.1 Granted — — — — Exercised ( 3,857 ) ( 40.32 ) — — Forfeited or expired — — — — Outstanding at September 30, 2023 1,756,581 $ 65.26 6.6 $ 4.5 Exercisable at September 30, 2023 256,581 $ 65.26 6.8 $ 0.7 As of September 30, 2023 , there is no unrecognized expense related to unvested performance-based stock option awards. Performance Stock Units PSU activity was as follows: Shares Outstanding at December 31, 2022 706,467 Granted 662,723 Vested and released ( 270,948 ) Forfeited or canceled ( 137,633 ) Outstanding at September 30, 2023 960,609 Releasable at September 30, 2023 95,066 On February 28, 2023, we granted PSUs under the 2023 Ceridian HCM Holding Inc. Management Incentive Plan (the “2023 MIP”) for the incentive period of January 1, 2023 through December 31, 2023, and also as part of long term incentive grants to certain members of management. The vesting conditions for the PSUs are primarily based on key financial metrics and the probability of vesting will continue to be evaluated throughout 2023, and share-based compensation will be recognized in accordance with that probability. As of September 30, 2023 , there was $ 32.6 million of share-based compensation expense related to unvested PSUs not yet recognized. Restricted Stock Units RSU activity was as follows: Shares Outstanding at December 31, 2022 2,890,817 Granted 1,748,812 Vested and released ( 960,885 ) Forfeited or canceled ( 187,378 ) Outstanding at September 30, 2023 3,491,366 Releasable at September 30, 2023 752,151 As of September 30, 2023 , there was $ 146.0 million of share-based compensation expense related to unvested RSUs not yet recognized, which is expected to be recognized over a weighted-average period of 1.6 years. Term-Based Stock Options Term-based stock option activity was as follows: Shares Weighted Weighted Aggregate Outstanding at December 31, 2022 7,296,086 $ 50.59 6.4 $ 117.4 Granted — — — — Exercised ( 700,872 ) ( 42.89 ) — — Forfeited or expired ( 66,005 ) ( 64.63 ) — — Outstanding at September 30, 2023 6,529,209 $ 51.28 5.7 $ 121.3 Exercisable at September 30, 2023 5,728,019 $ 48.09 5.5 $ 120.2 As of September 30, 2023 , there was $ 14.6 million of share-based compensation expense related to unvested term-based stock options not yet recognized, which is expected to be recognized over a weighted-average period of 0.3 years. Global Employee Stock Purchase Plan We maintain the Ceridian HCM Holding Inc. Global Employee Stock Purchase Plan (“GESPP”) pursuant to which we have shares reserved for the issuance of common stock to eligible participants through quarterly purchases via payroll deductions. A total of 1,472,021 shares of common stock are available for future issuances under the plan as of September 30, 2023 . The purchase price is the lower of 85 % of the fair market value of a share of common stock on (i) January 1 or (ii) the purchase date. Our GESPP activity was as follows: Period Ended Shares Issued Purchase Price March 31, 2023 62,584 $ 62.24 June 30, 2023 59,627 56.92 September 30, 2023 64,488 52.33

Revenue

Revenue	9 Months Ended
	Sep. 30, 2023
Revenue from Contract with Customer [Abstract]
Revenue	10. R evenue Disaggregation of Revenue Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 (Dollars in millions) Revenue: Recurring revenue: Dayforce recurring $ 279.6 $ 207.8 $ 819.0 $ 590.7 Powerpay® recurring 24.0 22.6 72.2 66.5 Total Cloud recurring 303.6 230.4 891.2 657.2 Other recurring 21.8 33.4 67.0 105.6 Total recurring revenue 325.4 263.8 958.2 762.8 Professional services and other 52.1 51.8 155.8 147.3 Total revenue $ 377.5 $ 315.6 $ 1,114.0 $ 910.1 Recurring revenue includes float revenue of $ 38.8 million and $ 21.3 million for the three months ended September 30, 2023, and 2022, respectively, and $ 127.5 million and $ 47.4 million for the nine months ended September 30, 2023, and 2022, respectively. Contract Balances A contract asset is generally recorded when revenue recognized for professional service performance obligations exceed the contractual amount of billings for implementation related professional services. Contract assets were $ 81.5 million and $ 68.5 million as of September 30, 2023, and December 31, 2022, respectively. Contract assets expected to be recognized in revenue within twelve months are included within prepaid expenses and other current assets, with the remaining contract assets included within other assets on our condensed consolidated balance sheets. Deferred Revenue Deferred revenue primarily consists of payments received in advance of revenue recognition. The changes in deferred revenue were as follows: Nine Months Ended September 30, 2023 2022 (Dollars in millions) Deferred revenue, beginning of period $ 41.2 $ 48.7 New billings 572.8 483.2 Revenue recognized ( 542.5 ) ( 486.5 ) Effect of exchange rate ( 23.7 ) ( 2.8 ) Deferred revenue, end of period $ 47.8 $ 42.6 Transaction Price for Remaining Performance Obligations As of September 30, 2023 , approximately $ 1,181.1 million of revenue is expected to be recognized over the next three years from remaining performance obligations, which represents contracted revenue for recurring services and fixed price professional services, primarily implementation services, that has not yet been recognized, including deferred revenue and unbilled amounts that will be recognized as revenue in future periods. Performance obligations that are billed and recognized as they are delivered, primarily professional services contracts that are on a time and materials basis, are excluded from the transaction price for remaining performance obligations disclosed above .

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	9 Months Ended
	Sep. 30, 2023
Equity [Abstract]
Accumulated Other Comprehensive Loss	11. Accumulated Other Comprehensive Loss The components of accumulated other comprehensive loss were as follows: Foreign Unrealized Gain Pension Total (Dollars in millions) Balance as of December 31, 2022 $ ( 234.0 ) $ ( 96.4 ) $ ( 154.6 ) $ ( 485.0 ) Other comprehensive income before income taxes and reclassifications ( 12.3 ) ( 1.5 ) — ( 13.8 ) Income tax expense — 0.4 ( 1.2 ) ( 0.8 ) Reclassifications to earnings — — 4.5 4.5 Other comprehensive income ( 12.3 ) ( 1.1 ) 3.3 ( 10.1 ) Balance as of September 30, 2023 $ ( 246.3 ) $ ( 97.5 ) $ ( 151.3 ) $ ( 495.1 )

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2023
Income Tax Disclosure [Abstract]
Income Taxes	12. Income Taxes Our income tax provision represents federal, state, and international taxes on our income recognized for financial statement purposes and includes the effects of temporary differences between financial statement income and income recognized for tax return purposes. Deferred tax assets and liabilities are recorded for temporary differences between the financial reporting basis and the tax basis of assets and liabilities. We record a valuation allowance to reduce our deferred tax assets to reflect the net deferred tax assets that we believe will be realized. In assessing the likelihood that we will be able to recover our deferred tax assets and the need for a valuation allowance, we consider all available evidence, both positive and negative, including historical levels of pre-tax book income, expiration of net operating losses, changes in our debt and equity structure, expectations and risks associated with estimates of future taxable income, ongoing prudent and feasible tax planning strategies, as well as current tax laws. As of September 30, 2023 , we have a valuation allowance of $ 48.1 million against certain deferred tax assets consisting of $ 31.0 million for deferred taxes attributable to previous business combinations, and $ 17.1 million attributable to state and foreign net operating loss carryovers. We recorded income tax expense of $ 51.3 million during the nine months ended September 30, 2023 , which included tax expense of $ 12.7 million attributable to current operations, $ 14.2 million attributable to share-based compensation, $ 5.1 million attributable to the U.S. Base Erosion Anti-Abuse Tax, $ 4.2 million attributable to international tax rate differences, $ 4.1 million attributable to Global Intangible Low Taxed Income, and $ 3.8 million attributable to U.S. state taxes. There were no unrecognized tax benefits as of September 30, 2023, and December 31, 2022. We make adjustments to these reserves when facts and circumstances change, such as the closing of tax audits or the refinement of an estimate. To the extent that the final tax outcome of these matters is different than the amounts recorded, such differences will affect the provision for income taxes in the period in which such determination is made and could have a material impact on our financial condition and operating results. We file income tax returns in the U.S. federal jurisdiction, various states, and foreign jurisdictions. With few exceptions, we are no longer subject to U.S. federal, state and local, or non-U.S. income tax examinations by tax authorities for years before 2018.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	13. Commitments and Contingencies Legal Matters We are subject to claims and a number of judicial and administrative proceedings considered normal in the course of our current and past operations, including employment-related disputes, contract disputes, disputes with our competitors, intellectual property disputes, government audits and proceedings, customer disputes, and tort claims. In some proceedings, the claimant seeks damages as well as other relief, which, if granted, would require substantial expenditures on our part. Our general terms and conditions in customer contracts frequently include a provision indicating we will indemnify and hold our customers harmless from and against any and all claims alleging that the services and materials furnished by us violate any third party’s patent, trade secret, copyright, or other intellectual property right. We are not aware of any material pending litigation concerning these indemnifications. Some of these matters raise difficult and complex factual and legal issues and are subject to many uncertainties, including the facts and circumstances of each particular action, and the jurisdiction, forum, and law under which each action is proceeding. Because of these complexities, final disposition of some of these proceedings may not occur for several years. As such, we are not always able to estimate the amount of our possible future liabilities, if any. There can be no certainty that we may not ultimately incur charges in excess of presently established or future financial accruals or insurance coverage. Although occasional adverse decisions or settlements may occur, it is management’s opinion that the final disposition of these proceedings will not, considering the merits of the claims and available resources or reserves and insurance, and based upon the facts and circumstances currently known, have a material adverse effect on our financial position or results of operations.

Net (Loss) Income per Share

Net (Loss) Income per Share	9 Months Ended
	Sep. 30, 2023
Earnings Per Share [Abstract]
Net (Loss) Income per Share	14. Net (Loss) Income per Share We compute net (loss) income per share of common stock using the treasury stock method. The basic and diluted net (loss) income per share computations were calculated as follows: Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 (Dollars in millions, except share and per share data) Numerator: Net (loss) income $ ( 3.8 ) $ ( 21.0 ) $ 9.2 $ ( 68.2 ) Denominator: Weighted-average shares outstanding - basic 155,693,712 153,184,846 155,026,472 152,691,008 Effect of dilutive equity instruments — — 3,158,335 — Weighted-average shares outstanding - diluted 155,693,712 153,184,846 158,184,807 152,691,008 Net (loss) income per share - basic $ ( 0.02 ) $ ( 0.14 ) $ 0.06 $ ( 0.45 ) Net (loss) income per share - diluted $ ( 0.02 ) $ ( 0.14 ) $ 0.06 $ ( 0.45 ) The following potentially dilutive weighted-average shares were excluded from the calculation of diluted net (loss) income per share because their effect would have been anti-dilutive: Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Stock options 3,051,487 5,356,629 2,447,755 5,633,051 Restricted stock units 566,712 1,831,846 64,406 1,359,481 Performance stock units 570,045 1,430,383 352 1,370,918 The shares underlying the conversion option in the Convertible Senior Notes were not considered in the calculation of diluted net income (loss) per share as the effect would have been anti-dilutive. Based on the initial conversion price, the entire outstanding principal amount of the Convertible Senior Notes as of September 30, 2023 would have been convertible into approximately 4.3 million shares of our common stock. Since we expect to settle the principal amount of the Convertible Senior Notes in cash, we use the treasury stock method for calculating any potential dilutive effect on diluted net income per share, if applicable. As a result, only the amount by which the conversion value exceeds the aggregate principal amount of the Convertible Senior Notes (the “conversion spread”) is considered in the diluted earnings per share computation. The conversion spread has a dilutive impact on diluted net income per share when the average market price of our common stock for a given period exceeds the initial conversion price of $ 132.20 per share for the Convertible Senior Notes. We excluded the potentially dilutive effect of the conversion spread of the Convertible Senior Notes as the average market price of our common stock during the three and nine months ended September 30, 2023 was less than the conversion price of the Convertible Senior Notes. In connection with the issuance of the Convertible Senior Notes, we entered into Capped Calls, which were not included for purposes of calculating the number of diluted shares outstanding, as their effect would have been anti-dilutive.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2023
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information. Accordingly, the unaudited condensed consolidated financial statements do not include all of the information and notes required by GAAP for complete financial statements. The accounting policies we follow are set forth in Note 2, “Summary of Significant Accounting Policies,” to our audited consolidated financial statements in our 2022 Form 10-K . The following notes should be read in conjunction with these policies and other disclosures in our 2022 Form 10-K. In the opinion of management, the unaudited condensed consolidated financial statements contained herein reflect all adjustments (consisting only of normal recurring adjustments, except as set forth in these notes to the condensed consolidated financial statements) necessary to present fairly in all material respects the financial position, results of operations, comprehensive income (loss), and cash flows from all periods presented. Interim results are not necessarily indicative of results for a full year.
Immaterial Correction of Prior Period Error	Immaterial Correction of Prior Period Error We recently discovered an error in the presentation of one Canadian bank account balance within “customer funds” and “customer funds obligations” and related items on the Company’s condensed consolidated balance sheet as of December 31, 2022 and in the Company’s net cash provided by financing activities within its condensed consolidated statement of cash flows for the nine months ended September 30, 2022. There was an understatement of customer funds within current assets and a corresponding understatement of customer funds obligations within current liabilities on the Company’s condensed consolidated balance sheets. As a result, the Company also erroneously presented certain changes related to customer funds and customer funds obligations on the Company’s condensed consolidated statements of cash flows. The line items affected include “customer funds” and “customer funds obligations” on our condensed consolidated balance sheets. The line items affected also include “increase (decrease) in customer funds obligations, net,” effect of exchange rate changes on cash, restricted cash, and equivalents,” “cash, restricted cash, and equivalents,” and “restricted cash and equivalents included in customer funds,” and “effect of exchange rate changes on cash, restricted cash, and equivalents” on our condensed consolidated statements of cash flows. The amounts impacted by the correction are summarized as follows: Condensed Consolidated Balance Sheets (Selected financial statement line items only) December 31, 2022 As reported As restated Change (Dollars in millions) Customer funds $ 4,183.2 $ 4,729.5 $ 546.3 Customer funds obligations 4,298.8 4,845.1 546.3 Condensed Consolidated Statements of Cash Flows (Selected financial statement line items only) Nine Months Ended September 30, 2022 As reported As restated Change (Dollars in millions) Increase in customer funds obligations, net $ 1,010.4 $ 706.9 $ ( 303.5 ) Effect of exchange rate changes on cash, restricted cash, and equivalents ( 8.1 ) ( 37.8 ) ( 29.7 ) Cash, restricted cash, and equivalents at beginning of period 1,952.8 2,643.3 690.5 Cash, restricted cash, and equivalents at end of period 2,767.2 3,124.5 357.3 Restricted cash and equivalents included in customer funds 2,358.0 2,715.3 357.3
Deferred Costs	Deferred Costs Deferred costs, which primarily consist of deferred sales commissions, included within other assets on our condensed consolidated balance sheets were $ 176.7 million and $ 151.2 million as of September 30, 2023, and December 31, 2022 , respectively. Amortization expense for the deferred costs was $ 5.3 million and $ 13.1 million for the three months ended September 30, 2023, and 2022 , respectively, and $ 15.0 million and $ 38.5 million for the nine months ended September 30, 2023, and 2022 , respectively.
Recently Issued and Adopted Accounting Pronouncements from the Financial Accounting Standards Board	Recently Issued and Adopted Accounting Pronouncements from the Financial Accounting Standards Board There were no recently adopted accounting standards that had a material effect on our condensed consolidated financial statements and accompanying disclosures, and no recently issued accounting standards that are expected to have a material impact on our condensed consolidated financial statements and accompanying disclosures.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2023
Accounting Policies [Abstract]
Schedule of Immaterial Corrections of Prior Period Error	The amounts impacted by the correction are summarized as follows: Condensed Consolidated Balance Sheets (Selected financial statement line items only) December 31, 2022 As reported As restated Change (Dollars in millions) Customer funds $ 4,183.2 $ 4,729.5 $ 546.3 Customer funds obligations 4,298.8 4,845.1 546.3 Condensed Consolidated Statements of Cash Flows (Selected financial statement line items only) Nine Months Ended September 30, 2022 As reported As restated Change (Dollars in millions) Increase in customer funds obligations, net $ 1,010.4 $ 706.9 $ ( 303.5 ) Effect of exchange rate changes on cash, restricted cash, and equivalents ( 8.1 ) ( 37.8 ) ( 29.7 ) Cash, restricted cash, and equivalents at beginning of period 1,952.8 2,643.3 690.5 Cash, restricted cash, and equivalents at end of period 2,767.2 3,124.5 357.3 Restricted cash and equivalents included in customer funds 2,358.0 2,715.3 357.3

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2023
Fair Value Disclosures [Abstract]
Financial Assets and Liabilities Measured at Fair Value on Recurring Basis	Our financial assets and liabilities measured at fair value on a recurring basis were categorized as follows: September 30, 2023 Level 1 Level 2 Level 3 Total (Dollars in millions) Assets Available for sale customer funds assets $ — $ 1,942.9 (a) $ — $ 1,942.9 Total assets measured at fair value $ — $ 1,942.9 $ — $ 1,942.9 Liabilities DataFuzion contingent consideration $ — $ — $ 22.4 (b) $ 22.4 Total liabilities measured at fair value $ — $ — $ 22.4 $ 22.4 December 31, 2022 Level 1 Level 2 Level 3 Total (Dollars in millions) Assets Available for sale customer funds assets $ — $ 2,011.0 (a) $ — $ 2,011.0 Total assets measured at fair value $ — $ 2,011.0 $ — $ 2,011.0 Liabilities DataFuzion contingent consideration $ — $ — $ 10.6 (b) $ 10.6 Total liabilities measured at fair value $ — $ — $ 10.6 $ 10.6 (a) Fair value is based on inputs that are observable for the asset or liability, other than quoted prices. (b) For the contingent consideration related to the 2021 acquisition of certain assets and liabilities of DataFuzion HCM, Inc. ("DataFuzion"), we utilize an option pricing model, specifically a Black-Scholes-Merton model, to estimate the fair value of the contingent liability as of the reporting dates. This model uses certain assumptions related to risk-free rates and volatility as well as certain judgments in forecasting annual recurring revenue. The contingent consideration has been measured as Level 3 given the unobservable inputs that are significant to the measurement of liability. As of September 30, 2023, $ 11.0 million of the contingent consideration is included within other accrued expenses in our condensed consolidated balance sheets and as of September 30, 2023 and December 31, 2022, $ 11.4 million and $ 10.6 million of the contingent consideration is included within other liabilities in our condensed consolidated balance sheets, respectively.

Customer Funds (Tables)

Customer Funds (Tables)	9 Months Ended
	Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]
Schedule of Amortized Cost and Fair Values of Investments of Customer Funds Available for Sale	The amortized cost and fair values of investments of customer funds available for sale were as follows: September 30, 2023 Amortized Gross Unrealized Fair Cost Gain Loss Value (Dollars in millions) Money market securities, investments carried at cost $ 3,093.8 $ — $ — $ 3,093.8 Available for sale investments: U.S. government and agency securities 731.0 — ( 50.6 ) 680.4 Canadian and provincial government securities 383.3 — ( 20.8 ) 362.5 Corporate debt securities 629.6 0.1 ( 36.0 ) 593.7 Asset-backed securities 195.7 — ( 6.2 ) 189.5 Mortgage-backed securities 31.6 — ( 1.3 ) 30.3 Other short-term investments 15.9 — — 15.9 Other securities 75.2 — ( 4.6 ) 70.6 Total available for sale investments 2,062.3 0.1 ( 119.5 ) 1,942.9 Invested customer funds 5,156.1 $ 0.1 $ ( 119.5 ) 5,036.7 Receivables 11.6 11.4 Total customer funds $ 5,167.7 $ 5,048.1 December 31, 2022 Amortized Gross Unrealized Fair Cost Gain Loss Value (Dollars in millions) Money market securities, investments carried at cost $ 2,698.7 $ — $ — $ 2,698.7 Available for sale investments: U.S. government and agency securities 721.3 — ( 53.1 ) 668.2 Canadian and provincial government securities 438.7 0.1 ( 17.8 ) 421.0 Corporate debt securities 653.8 0.5 ( 35.5 ) 618.8 Asset-backed securities 169.6 0.1 ( 6.1 ) 163.6 Mortgage-backed securities 14.5 — ( 0.7 ) 13.8 Other short-term investments 57.0 — — 57.0 Other securities 74.4 — ( 5.9 ) 68.6 Total available for sale investments 2,129.3 0.7 ( 119.1 ) 2,011.0 Invested customer funds 4,828.0 $ 0.7 $ ( 119.1 ) 4,709.7 Receivables 20.0 19.8 Total customer funds $ 4,848.0 $ 4,729.5
Schedule of Unrealized Losses and Fair Value	The following represents the gross unrealized losses and the related fair value of the investments of customer funds available for sale, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position. September 30, 2023 Less than 12 months 12 months or more Total Unrealized Fair Unrealized Fair Unrealized Fair (Dollars in millions) U.S. government and agency securities $ ( 2.0 ) $ 103.3 $ ( 48.6 ) $ 574.0 $ ( 50.6 ) $ 677.3 Canadian and provincial government securities ( 4.0 ) 118.1 ( 16.8 ) 242.1 ( 20.8 ) 360.2 Corporate debt securities ( 3.3 ) 136.5 ( 32.7 ) 460.3 ( 36.0 ) 596.8 Asset-backed securities ( 1.4 ) 75.9 ( 4.8 ) 102.0 ( 6.2 ) 177.9 Mortgage-backed securities ( 0.3 ) 18.3 ( 1.0 ) 11.9 ( 1.3 ) 30.2 Other securities ( 0.1 ) 2.8 ( 4.5 ) 66.9 ( 4.6 ) 69.7 Total available for sale investments $ ( 11.1 ) $ 454.9 $ ( 108.4 ) $ 1,457.2 $ ( 119.5 ) $ 1,912.1
Schedule of Amortized Cost and Fair Value of Investment Securities Available for Sale by Contractual Maturity	The amortized cost and fair value of investment securities available for sale at September 30, 2023, by contractual maturity are shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or to prepay obligations with or without call or prepayment penalties. September 30, 2023 Cost Fair Value (Dollars in millions) Due in one year or less $ 3,444.8 $ 3,438.5 Due in one to three years 857.6 801.9 Due in three to five years 758.2 704.6 Due after five years 95.5 91.7 Invested customer funds $ 5,156.1 $ 5,036.7

Leases (Tables)

Leases (Tables)	9 Months Ended
	Sep. 30, 2023
Leases [Abstract]
Supplemental Balance Sheet Information Related to Leases	Supplemental balance sheet information related to leases was as follows: Lease Type Balance Sheet Classification September 30, 2023 December 31, 2022 (Dollars in millions) ASSETS Operating lease assets Trade and other receivables, net $ 0.9 $ 0.1 Operating lease assets Prepaid expenses and other current assets 2.7 2.8 Operating lease assets Right of use lease assets, net 19.5 24.3 Financing lease assets Property, plant, and equipment, net 6.0 7.0 Total lease assets $ 29.1 $ 34.2 LIABILITIES Current Financing lease liabilities Current portion of long-term debt $ 0.8 $ 1.0 Operating lease liabilities Current portion of long-term lease liabilities 6.9 10.0 Noncurrent Financing lease liabilities Long-term debt, less current portion 6.7 7.4 Operating lease liabilities Long-term lease liabilities, less current portion 20.4 23.7 Total lease liabilities $ 34.8 $ 42.1
Components of Lease Expense	The components of lease expense were as follows: Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Lease Cost (Dollars in millions) Operating lease cost $ 2.1 $ 2.5 $ 7.0 $ 7.4 Financing lease cost: Depreciation of lease assets 0.4 0.3 1.3 1.0 Interest on lease liabilities — 0.1 0.2 0.3 Sublease income ( 0.1 ) ( 0.1 ) ( 0.3 ) ( 0.3 ) Total lease cost, net $ 2.4 $ 2.8 $ 8.2 $ 8.4

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Changes in Goodwill	Goodwill and changes therein were as follows: (Dollars in millions) Balance at December 31, 2022 $ 2,280.0 Foreign currency translation ( 9.3 ) Balance at September 30, 2023 $ 2,270.7
Schedule of Other Intangible Assets	Other intangible assets, net consisted of the following: September 30, 2023 Gross Carrying Accumulated Net Estimated Life (Dollars in millions) Customer lists and relationships $ 295.7 $ ( 234.2 ) $ 61.5 4 - 12 Trade name 183.0 ( 20.1 ) 162.9 2 - 5 and Indefinite Technology 211.5 ( 191.0 ) 20.5 3 - 5 Total other intangible assets $ 690.2 $ ( 445.3 ) $ 244.9 December 31, 2022 Gross Carrying Accumulated Net Estimated Life (Dollars in millions) Customer lists and relationships $ 299.8 $ ( 228.6 ) $ 71.2 4 - 12 Trade name 183.4 ( 4.7 ) 178.7 3 - 5 and Indefinite Technology 213.5 ( 181.8 ) 31.7 3 - 5 Total other intangible assets $ 696.7 $ ( 415.1 ) $ 281.6

Debt (Tables)

Debt (Tables)	9 Months Ended
	Sep. 30, 2023
Debt Disclosure [Abstract]
Schedule of Debt Obligations	Our debt obligations consisted of the following: September 30, December 31, 2023 2022 (Dollars in millions) Term Debt, interest rate of 7.9 % and 6.9 %, respectively $ 646.0 $ 651.1 Revolving Credit Facility ($ 300 million available capacity less amounts reserved for letters of credit, which were $ 1.2 million and $ 1.4 million, respectively) — — Convertible Senior Notes, interest rate of 0.25 % 575.0 575.0 Australia Line of Credit (AUD $ 0.7 million and $ 1.5 million letter of credit capacity, 0.5 million and USD $ 1.0 million, — — Financing lease liabilities (Note 5) 7.5 8.4 Total debt 1,228.5 1,234.5 Less unamortized discount on Term Debt 0.5 0.6 Less unamortized debt issuance costs on Term Debt and Convertible Senior Notes 9.6 12.7 Less current portion of long-term debt 7.5 7.8 Long-term debt, less current portion $ 1,210.9 $ 1,213.4
Schedule of Convertible Senior Notes	The following table presents details of the Convertible Senior Notes: Initial Conversion Rate per $ 1,000 Principal Initial Conversion Price per Share Convertible Senior Notes 7.5641 shares $ 132.20
Summary of Interest Expense Recognized Related to Convertible Senior Notes	Interest expense recognized related to the Convertible Senior Notes was as follows: Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 (Dollars in millions) Contractual interest expense $ 0.4 $ 0.4 $ 1.1 $ 1.0 Amortization of debt issuance costs 0.7 0.6 2.1 2.0 Total $ 1.1 $ 1.0 $ 3.2 $ 3.0
Schedule of Future Principal Payments and Maturities of Indebtedness, Excluding Financing Lease Obligations	The future principal payments and maturities of our indebtedness, excluding financing lease obligations, are as follows: Years Ending December 31, Amount (Dollars in millions) 2023 $ 1.7 2024 6.8 2025 637.5 2026 575.0 $ 1,221.0

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	9 Months Ended
	Sep. 30, 2023
Retirement Benefits [Abstract]
Components of Net Periodic Cost for Defined Benefit Pension Plan and for Postretirement Benefit Plan	The components of net periodic cost (gain) for our defined benefit pension plan and for our postretirement benefit plan are included in the following tables: Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Net Periodic Pension Cost (Dollars in millions) Interest cost $ 4.2 $ 2.2 $ 12.8 $ 6.6 Actuarial loss amortization 2.0 3.4 6.2 10.2 Less: Expected return on plan assets ( 5.6 ) ( 4.0 ) ( 16.7 ) ( 11.9 ) Net periodic pension cost $ 0.6 $ 1.6 $ 2.3 $ 4.9 Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Net Periodic Postretirement Benefit (Dollars in millions) Interest cost $ 0.1 $ 0.1 $ 0.3 $ 0.2 Actuarial gain amortization ( 0.5 ) ( 0.5 ) ( 1.7 ) ( 1.5 ) Net periodic postretirement benefit gain $ ( 0.4 ) $ ( 0.4 ) $ ( 1.4 ) $ ( 1.3 )

Share-Based Compensation (Table

Share-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]
Summary of Performance-Based Stock Option Activity	Performance-based stock option activity was as follows: Shares Weighted Weighted Aggregate Outstanding at December 31, 2022 1,760,438 $ 66.10 7.4 $ 0.1 Granted — — — — Exercised ( 3,857 ) ( 40.32 ) — — Forfeited or expired — — — — Outstanding at September 30, 2023 1,756,581 $ 65.26 6.6 $ 4.5 Exercisable at September 30, 2023 256,581 $ 65.26 6.8 $ 0.7
Summary of Performance Stock Units	PSU activity was as follows: Shares Outstanding at December 31, 2022 706,467 Granted 662,723 Vested and released ( 270,948 ) Forfeited or canceled ( 137,633 ) Outstanding at September 30, 2023 960,609 Releasable at September 30, 2023 95,066
Summary of Restricted Stock Units Activity	RSU activity was as follows: Shares Outstanding at December 31, 2022 2,890,817 Granted 1,748,812 Vested and released ( 960,885 ) Forfeited or canceled ( 187,378 ) Outstanding at September 30, 2023 3,491,366 Releasable at September 30, 2023 752,151
Summary of Term-Based Stock Option Activity	Term-based stock option activity was as follows: Shares Weighted Weighted Aggregate Outstanding at December 31, 2022 7,296,086 $ 50.59 6.4 $ 117.4 Granted — — — — Exercised ( 700,872 ) ( 42.89 ) — — Forfeited or expired ( 66,005 ) ( 64.63 ) — — Outstanding at September 30, 2023 6,529,209 $ 51.28 5.7 $ 121.3 Exercisable at September 30, 2023 5,728,019 $ 48.09 5.5 $ 120.2
Summary of Global Employee Stock Purchase Plan Activity	Our GESPP activity was as follows: Period Ended Shares Issued Purchase Price March 31, 2023 62,584 $ 62.24 June 30, 2023 59,627 56.92 September 30, 2023 64,488 52.33

Revenue (Tables)

Revenue (Tables)	9 Months Ended
	Sep. 30, 2023
Revenue from Contract with Customer [Abstract]
Summary of Disaggregation of Revenue	Disaggregation of Revenue Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 (Dollars in millions) Revenue: Recurring revenue: Dayforce recurring $ 279.6 $ 207.8 $ 819.0 $ 590.7 Powerpay® recurring 24.0 22.6 72.2 66.5 Total Cloud recurring 303.6 230.4 891.2 657.2 Other recurring 21.8 33.4 67.0 105.6 Total recurring revenue 325.4 263.8 958.2 762.8 Professional services and other 52.1 51.8 155.8 147.3 Total revenue $ 377.5 $ 315.6 $ 1,114.0 $ 910.1
Schedule of Changes in Deferred Revenue	Deferred revenue primarily consists of payments received in advance of revenue recognition. The changes in deferred revenue were as follows: Nine Months Ended September 30, 2023 2022 (Dollars in millions) Deferred revenue, beginning of period $ 41.2 $ 48.7 New billings 572.8 483.2 Revenue recognized ( 542.5 ) ( 486.5 ) Effect of exchange rate ( 23.7 ) ( 2.8 ) Deferred revenue, end of period $ 47.8 $ 42.6

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss (Tables)	9 Months Ended
	Sep. 30, 2023
Equity [Abstract]
Components of Accumulated Other Comprehensive Loss	The components of accumulated other comprehensive loss were as follows: Foreign Unrealized Gain Pension Total (Dollars in millions) Balance as of December 31, 2022 $ ( 234.0 ) $ ( 96.4 ) $ ( 154.6 ) $ ( 485.0 ) Other comprehensive income before income taxes and reclassifications ( 12.3 ) ( 1.5 ) — ( 13.8 ) Income tax expense — 0.4 ( 1.2 ) ( 0.8 ) Reclassifications to earnings — — 4.5 4.5 Other comprehensive income ( 12.3 ) ( 1.1 ) 3.3 ( 10.1 ) Balance as of September 30, 2023 $ ( 246.3 ) $ ( 97.5 ) $ ( 151.3 ) $ ( 495.1 )

Net (Loss) Income per Share (Ta

Net (Loss) Income per Share (Tables)	9 Months Ended
	Sep. 30, 2023
Earnings Per Share [Abstract]
Schedule of Computations of Net (Loss) Income per Basic and Diluted Share	The basic and diluted net (loss) income per share computations were calculated as follows: Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 (Dollars in millions, except share and per share data) Numerator: Net (loss) income $ ( 3.8 ) $ ( 21.0 ) $ 9.2 $ ( 68.2 ) Denominator: Weighted-average shares outstanding - basic 155,693,712 153,184,846 155,026,472 152,691,008 Effect of dilutive equity instruments — — 3,158,335 — Weighted-average shares outstanding - diluted 155,693,712 153,184,846 158,184,807 152,691,008 Net (loss) income per share - basic $ ( 0.02 ) $ ( 0.14 ) $ 0.06 $ ( 0.45 ) Net (loss) income per share - diluted $ ( 0.02 ) $ ( 0.14 ) $ 0.06 $ ( 0.45 )
Schedule of Potentially Dilutive Weighted Average Shares Excluded from Calculation of Net (Loss) income per Diluted Share	The following potentially dilutive weighted-average shares were excluded from the calculation of diluted net (loss) income per share because their effect would have been anti-dilutive: Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Stock options 3,051,487 5,356,629 2,447,755 5,633,051 Restricted stock units 566,712 1,831,846 64,406 1,359,481 Performance stock units 570,045 1,430,383 352 1,370,918

Organization - Additional Infor

Organization - Additional Information (Detail)	Sep. 30, 2023 Country
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of countries operate globally	18

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Significant Accounting Policies [Line Items]
Amortization expense for the deferred costs	$ 5.3	$ 13.1	$ 15	$ 38.5
Other Assets [Member]
Significant Accounting Policies [Line Items]
Deferred costs	$ 176.7		$ 176.7		$ 151.2

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Schedule of Immaterial Correction of Prior Period Error Condensed Consolidated Balance Sheets (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Customer funds	$ 5,048.1	$ 4,729.5
Customer funds obligations	$ 5,165.8	4,845.1
Previously Reported [Member]
Customer funds		4,183.2
Customer funds obligations		4,298.8
Revision of Prior Period, Error Correction, Adjustment [Member]
Customer funds		546.3
Customer funds obligations		$ 546.3

Summary of Significant Accoun_6

Summary of Significant Accounting Policies - Schedule of Immaterial Correction of Prior Period Error Consolidated Statement of Cash Flows (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Increase in customer funds obligations, net	$ 311	$ 706.9
Effect of exchange rate changes on cash, restricted cash, and equivalents	5.1	(37.8)
Cash, restricted cash, and equivalents at beginning of period	3,151.2	2,643.3
Cash, restricted cash, and equivalents at end of period	3,616.3	3,124.5
Restricted cash and equivalents included in customer funds	$ 3,105.2	2,715.3
Previously Reported [Member]
Increase in customer funds obligations, net		1,010.4
Effect of exchange rate changes on cash, restricted cash, and equivalents		(8.1)
Cash, restricted cash, and equivalents at beginning of period		1,952.8
Cash, restricted cash, and equivalents at end of period		2,767.2
Restricted cash and equivalents included in customer funds		2,358
Revision of Prior Period, Error Correction, Adjustment [Member]
Increase in customer funds obligations, net		(303.5)
Effect of exchange rate changes on cash, restricted cash, and equivalents		(29.7)
Cash, restricted cash, and equivalents at beginning of period		690.5
Cash, restricted cash, and equivalents at end of period		357.3
Restricted cash and equivalents included in customer funds		$ 357.3

Fair Value Measurements - Asset

Fair Value Measurements - Asset and Liability Measured at Fair Value Measured on Recurring Basis (Detail) - USD ($) $ in Millions		Sep. 30, 2023	Dec. 31, 2022
Assets
Available for sale customer funds assets		$ 1,942.9	$ 2,011
Total assets measured at fair value		1,942.9	2,011
Liabilities
DataFuzion contingent consideration		22.4	10.6
Total liabilities measured at fair value		22.4	10.6
Fair Value, Inputs, Level 2 [Member]
Assets
Available for sale customer funds assets	[1]	1,942.9	2,011
Total assets measured at fair value		1,942.9	2,011
Fair Value, Inputs, Level 3 [Member]
Liabilities
DataFuzion contingent consideration	[2]	22.4	10.6
Total liabilities measured at fair value		$ 22.4	$ 10.6
[1] Fair value is based on inputs that are observable for the asset or liability, other than quoted prices. For the contingent consideration related to the 2021 acquisition of certain assets and liabilities of DataFuzion HCM, Inc. ("DataFuzion"), we utilize an option pricing model, specifically a Black-Scholes-Merton model, to estimate the fair value of the contingent liability as of the reporting dates. This model uses certain assumptions related to risk-free rates and volatility as well as certain judgments in forecasting annual recurring revenue. The contingent consideration has been measured as Level 3 given the unobservable inputs that are significant to the measurement of liability. As of September 30, 2023, $ 11.0 million of the contingent consideration is included within other accrued expenses in our condensed consolidated balance sheets and as of September 30, 2023 and December 31, 2022, $ 11.4 million and $ 10.6 million of the contingent consideration is included within other liabilities in our condensed consolidated balance sheets, respectively.

Fair Value Measurements - Ass_2

Fair Value Measurements - Asset and Liability Measured at Fair Value Measured on Recurring Basis (Parenthetical) (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Other Current Liabilities [Member]
Business Acquisition, Contingent Consideration [Line Items]
Contingent consideration	$ 11.4	$ 10.6
Other Accrued Expenses [Member]
Business Acquisition, Contingent Consideration [Line Items]
Contingent consideration	$ 11

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Fair Value Disclosures [Abstract]
Change in fair value of contingent consideration	$ 4.6	$ 1.2	$ 11.8	$ 3.2

Customer Funds - Additional Inf

Customer Funds - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Investments Debt And Equity Securities [Line Items]
Investment income from invested customer funds included in recurring revenue	$ 38.8	$ 21.3	$ 127.5	$ 47.4
Maximum [Member] | Maturities ranging from one to 120 days [Member]
Investments Debt And Equity Securities [Line Items]
Average customer trust funds held in liquidity portfolios, Percentage			55%
Maximum [Member] | Maturities ranging from 120 days to 10 years [Member]
Investments Debt And Equity Securities [Line Items]
Average customer trust funds held in fixed income portfolios, Percentage			55%
Minimum [Member] | Maturities ranging from one to 120 days [Member]
Investments Debt And Equity Securities [Line Items]
Average customer trust funds held in liquidity portfolios, Percentage			45%
Minimum [Member] | Maturities ranging from 120 days to 10 years [Member]
Investments Debt And Equity Securities [Line Items]
Average customer trust funds held in fixed income portfolios, Percentage			45%

Customer Funds - Investment of

Customer Funds - Investment of Customer Funds (Detail) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Money market securities, investments carried at cost and other cash equivalents, Fair Value	$ 3,093.8	$ 2,698.7
Invested customer funds, Fair Value	5,036.7	4,709.7
Receivables, Fair Value	11.4	19.8
Total customer funds, Fair Value	5,048.1	4,729.5
Money market securities, investments carried at cost and other cash equivalents, Amortized Cost	3,093.8	2,698.7
Invested customer funds, Amortized Cost	5,156.1	4,828
Receivables, Amortized Cost	11.6	20
Total customer funds, Amortized Cost	5,167.7	4,848
Amortized Cost	2,062.3	2,129.3
Gross Unrealized Gain	0.1	0.7
Gross Unrealized Loss	(119.5)	(119.1)
Fair value	1,942.9	2,011
U.S. Government and Agencies Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	731	721.3
Gross Unrealized Loss	(50.6)	(53.1)
Fair value	680.4	668.2
Canadian and Provincial Government Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	383.3	438.7
Gross Unrealized Gain		0.1
Gross Unrealized Loss	(20.8)	(17.8)
Fair value	362.5	421
Corporate Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	629.6	653.8
Gross Unrealized Gain	0.1	0.5
Gross Unrealized Loss	(36)	(35.5)
Fair value	593.7	618.8
Asset-backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	195.7	169.6
Gross Unrealized Gain		0.1
Gross Unrealized Loss	(6.2)	(6.1)
Fair value	189.5	163.6
Mortgage-backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	31.6	14.5
Gross Unrealized Loss	(1.3)	(0.7)
Fair value	30.3	13.8
Other Short-Term Investments [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	15.9	57
Fair value	15.9	57
Other Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	75.2	74.4
Gross Unrealized Loss	(4.6)	(5.9)
Fair value	$ 70.6	$ 68.6

Customer Funds - Gross Unrealiz

Customer Funds - Gross Unrealized Losses and Related Fair Value of Investment (Detail) $ in Millions	Sep. 30, 2023 USD ($)
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, Unrealized Losses	$ (11.1)
Less than 12 months, Fair Value	454.9
12 months or more, Unrealized Losses	(108.4)
12 months or more, Fair Value	1,457.2
Total, Unrealized Losses	(119.5)
Total, Fair Value	1,912.1
U.S. Government and Agencies Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, Unrealized Losses	(2)
Less than 12 months, Fair Value	103.3
12 months or more, Unrealized Losses	(48.6)
12 months or more, Fair Value	574
Total, Unrealized Losses	(50.6)
Total, Fair Value	677.3
Canadian and Provincial Government Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, Unrealized Losses	(4)
Less than 12 months, Fair Value	118.1
12 months or more, Unrealized Losses	(16.8)
12 months or more, Fair Value	242.1
Total, Unrealized Losses	(20.8)
Total, Fair Value	360.2
Corporate Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, Unrealized Losses	(3.3)
Less than 12 months, Fair Value	136.5
12 months or more, Unrealized Losses	(32.7)
12 months or more, Fair Value	460.3
Total, Unrealized Losses	(36)
Total, Fair Value	596.8
Asset-backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, Unrealized Losses	(1.4)
Less than 12 months, Fair Value	75.9
12 months or more, Unrealized Losses	(4.8)
12 months or more, Fair Value	102
Total, Unrealized Losses	(6.2)
Total, Fair Value	177.9
Mortgage-backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, Unrealized Losses	(0.3)
Less than 12 months, Fair Value	18.3
12 months or more, Unrealized Losses	(1)
12 months or more, Fair Value	11.9
Total, Unrealized Losses	(1.3)
Total, Fair Value	30.2
Other Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 months, Unrealized Losses	(0.1)
Less than 12 months, Fair Value	2.8
12 months or more, Unrealized Losses	(4.5)
12 months or more, Fair Value	66.9
Total, Unrealized Losses	(4.6)
Total, Fair Value	$ 69.7

Customer Funds - Amortized Cost

Customer Funds - Amortized Cost and Fair Value of Investment Security Available for Sale (Detail) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Due in one year or less, Cost	$ 3,444.8
Due in one to three years, Cost	857.6
Due in three to five years, Cost	758.2
Due after five years, Cost	95.5
Invested customer funds, Cost	5,156.1	$ 4,828
Due in one year or less, Fair Value	3,438.5
Due in one to three years, Fair Value	801.9
Due in three to five years, Fair Value	704.6
Due after five years, Fair Value	91.7
Invested customer funds, Fair Value	$ 5,036.7	$ 4,709.7

Leases - Supplemental Balance S

Leases - Supplemental Balance Sheet Information Related to Leases (Detail) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Operating Leased Assets [Line Items]
Right of use lease assets, net	$ 19.5	$ 24.3
Financing lease assets noncurrent	$ 6	$ 7
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Property, plant, and equipment, net	Property, plant, and equipment, net
Total lease assets	$ 29.1	$ 34.2
Finance lease liability current	$ 0.8	$ 1
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Current portion of long-term debt	Current portion of long-term debt
Operating lease liability current	$ 6.9	$ 10
Finance lease liability Noncurrent	$ 6.7	$ 7.4
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Long-term debt, less current portion	Long-term debt, less current portion
Operating lease liability noncurrent	$ 20.4	$ 23.7
Total lease liabilities	34.8	42.1
Trade And Other Receivables Net [Member]
Operating Leased Assets [Line Items]
Operating lease assets current	0.9	0.1
Prepaid Expenses and Other Current Assets [Member]
Operating Leased Assets [Line Items]
Operating lease assets current	$ 2.7	$ 2.8

Leases - Components of Lease Ex

Leases - Components of Lease Expense (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Lease Cost
Operating lease cost	$ 2.1	$ 2.5	$ 7	$ 7.4
Financing lease cost:
Depreciation of lease assets	0.4	0.3	1.3	1
Interest on lease liabilities	0	0.1	0.2	0.3
Sublease income	(0.1)	(0.1)	(0.3)	(0.3)
Total lease cost, net	$ 2.4	$ 2.8	$ 8.2	$ 8.4

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Schedule of Changes in Goodwill (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2023 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Balance	$ 2,280
Foreign currency translation	(9.3)
Balance	$ 2,270.7

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Schedule of Intangible Asset (Detail) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Schedule of Finite and Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 690.2	$ 696.7
Accumulated Amortization	(445.3)	(415.1)
Net	244.9	281.6
Trade Name [Member]
Schedule of Finite and Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amount	183	183.4
Accumulated Amortization	(20.1)	(4.7)
Net	$ 162.9	$ 178.7
Minimum [Member] | Trade Name [Member]
Schedule of Finite and Indefinite Lived Intangible Assets [Line Items]
Estimated Life Range (Years)	2 years	3 years
Maximum [Member] | Trade Name [Member]
Schedule of Finite and Indefinite Lived Intangible Assets [Line Items]
Estimated Life Range (Years)	5 years	5 years
Estimated Life Range (Years)	Indefinite	Indefinite
Customer Lists and Relationships [Member]
Schedule of Finite and Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 295.7	$ 299.8
Accumulated Amortization	(234.2)	(228.6)
Net	$ 61.5	$ 71.2
Customer Lists and Relationships [Member] | Minimum [Member]
Schedule of Finite and Indefinite Lived Intangible Assets [Line Items]
Estimated Life Range (Years)	4 years	4 years
Customer Lists and Relationships [Member] | Maximum [Member]
Schedule of Finite and Indefinite Lived Intangible Assets [Line Items]
Estimated Life Range (Years)	12 years	12 years
Technology [Member]
Schedule of Finite and Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 211.5	$ 213.5
Accumulated Amortization	(191)	(181.8)
Net	$ 20.5	$ 31.7
Technology [Member] | Minimum [Member]
Schedule of Finite and Indefinite Lived Intangible Assets [Line Items]
Estimated Life Range (Years)	3 years	3 years
Technology [Member] | Maximum [Member]
Schedule of Finite and Indefinite Lived Intangible Assets [Line Items]
Estimated Life Range (Years)	5 years	5 years

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Schedule of Finite and Indefinite Lived Intangible Assets [Line Items]
Amortization expense	$ 20.5	$ 7.5	$ 32.7	$ 22.9
Ceridian Trade Name [Member]
Schedule of Finite and Indefinite Lived Intangible Assets [Line Items]
Finite-lived intangible asset, carrying amount	$ 167.2		$ 167.2
Estimated Life Range (Years)	2 years		2 years
Dayforce Trade Name [Member]
Schedule of Finite and Indefinite Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets, carrying value	$ 4.4		$ 4.4

Debt - Schedule of Debt Obligat

Debt - Schedule of Debt Obligations (Detail) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Total debt excluding financing lease liabilities	$ 1,221
Financing lease liabilities	7.5	$ 8.4
Total debt	1,228.5	1,234.5
Less current portion of long-term debt	7.5	7.8
Long-term debt, less current portion	1,210.9	1,213.4
Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Total debt excluding financing lease liabilities	575	575
Term Debt and Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Less unamortized debt issuance costs on Term Debt and Convertible Senior Notes	9.6	12.7
Term Debt [Member]
Debt Instrument [Line Items]
Total debt excluding financing lease liabilities	646	651.1
Less unamortized discount on Term Debt	$ 0.5	$ 0.6

Debt - Schedule of Debt Oblig_2

Debt - Schedule of Debt Obligations (Parenthetical) (Detail) $ in Millions, $ in Millions	Sep. 30, 2023 USD ($)	Sep. 30, 2023 AUD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2022 AUD ($)	Mar. 31, 2021	Apr. 30, 2018 USD ($)
Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Interest rate on debt	0.25%	0.25%	0.25%	0.25%	0.25%
Term Debt [Member]
Debt Instrument [Line Items]
Interest rate on debt	7.90%	7.90%	6.90%	6.90%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Available capacity	$ 300					$ 300
Revolving Credit Facility [Member] | Letter of Credit [Member]
Debt Instrument [Line Items]
Available capacity	1.2		$ 1.4
Foreign Line of Credit [Member] | Australia [Member]
Debt Instrument [Line Items]
Available capacity	$ 0.5		$ 1
Foreign Line of Credit [Member] | Australia [Member] | Letter of Credit [Member]
Debt Instrument [Line Items]
Available capacity		$ 0.7		$ 1.5

Debt - Additional Information (

Debt - Additional Information (Detail) - USD ($)	1 Months Ended	9 Months Ended
	Mar. 31, 2021	Sep. 30, 2023	Dec. 31, 2022	Apr. 30, 2018
Debt Instrument [Line Items]
Accrued interest and fees		$ 500,000	$ 700,000
Fair value of our indebtedness		1,151,900,000	$ 1,142,300,000
Fair Value, Inputs, Level 2 [Member]
Debt Instrument [Line Items]
Trading price per principal amount of notes		1,000
Capped Calls [Member]
Debt Instrument [Line Items]
Capped call initial strike price	$ 132.2
Capped call initial cap price	$ 179.26
Derivative, premium paid	$ 45,000,000
Reduction to additional paid-in capital	(33,000,000)
Net of deferred tax impact	12,000,000
Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument principal amount	$ 575,000,000	$ 575,000,000
Debt instrument maturity date		Mar. 15, 2026
Debt instrument percentage of aggregate principal amount	0.25%
Debt instrument additional aggregate principal amount	$ 75,000,000
Debt instrument interest rate stated percentage	0.25%	0.25%	0.25%
Net proceeds from deducting initial purchase discounts and other debt issuance costs	$ 561,800,000
Debt instrument frequency of periodic payment		semiannually
Debt instrument payment terms		The Convertible Senior Notes bear interest at a rate of 0.25% per year and interest is payable semiannually in arrears on March 15 and September 15 of each year, beginning on September 15, 2021.
Debt instrument payment beginning date		Sep. 15, 2021
Debt instrument, convertible, carrying amount of equity component		$ 567,500,000
Debt issuance costs net		$ 7,500,000
Senior note, amortized interest rate		5.10%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Available capacity for letters of credit		$ 300,000,000		$ 300,000,000
Debt instrument maturity date		Jan. 29, 2025
Term Debt [Member]
Debt Instrument [Line Items]
Debt instrument principal amount				$ 680,000,000
Debt instrument maturity date		Apr. 30, 2025
Debt instrument percentage of quarterly installment principal amount		0.25%
Debt instrument percentage of aggregate principal amount		1%
Debt instrument interest rate stated percentage		7.90%	6.90%

Debt - Schedule of Convertible

Debt - Schedule of Convertible Senior Notes (Detail) - Convertible Senior Notes [Member]	9 Months Ended
	Sep. 30, 2023 $ / shares shares
Debt Instrument [Line Items]
Initial Conversion Rate per $1,000 Principal | shares	7.5641
Initial Conversion Price per Share | $ / shares	$ 132.20

Debt - Schedule of Convertibl_2

Debt - Schedule of Convertible Senior Notes (Parenthetical) (Detail)	9 Months Ended
	Sep. 30, 2023 USD ($)
Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Initial conversion per principal amount	$ 1,000

Debt - Summary of Interest Expe

Debt - Summary of Interest Expense Recognized Related to Convertible Senior Notes (Detail) - Convertible Senior Notes [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Debt Instrument [Line Items]
Contractual interest expense	$ 0.4	$ 0.4	$ 1.1	$ 1
Amortization of debt issuance costs	0.7	0.6	2.1	2
Total	$ 1.1	$ 1	$ 3.2	$ 3

Debt - Schedule of Future Princ

Debt - Schedule of Future Principal Payments and Maturities of Indebtedness, Excluding Financing Lease Obligations (Detail) $ in Millions	Sep. 30, 2023 USD ($)
Debt Disclosure [Abstract]
2023	$ 1.7
2024	6.8
2025	637.5
2026	575
Principal payments and maturities excluding financing lease obligations	$ 1,221

Employee Benefit Plans - Compon

Employee Benefit Plans - Components of Net Periodic Cost for Defined Benefit Pension Plan and for Postretirement Benefit Plan (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Net periodic pension cost			$ 0.9	$ 3.6
Defined Benefit Pension Plan [Member]
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest cost	$ 4.2	$ 2.2	12.8	6.6
Actuarial loss (gain) amortization	2	3.4	6.2	10.2
Less: Expected return on plan assets	(5.6)	(4)	(16.7)	(11.9)
Net periodic pension cost	0.6	1.6	2.3	4.9
Other Postretirement Benefits Plan [Member]
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest cost	0.1	0.1	0.3	0.2
Actuarial loss (gain) amortization	(0.5)	(0.5)	(1.7)	(1.5)
Net periodic pension cost	$ (0.4)	$ (0.4)	$ (1.4)	$ (1.3)

Share-Based Compensation - Addi

Share-Based Compensation - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense	$ 36,300,000	$ 39,200,000	$ 118,000,000	$ 113,500,000
Performance Shares [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense related to unvested stock option awards not yet recognized	0		0
Term Based Stock Options [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense related to unvested stock option awards not yet recognized	14,600,000		$ 14,600,000
Share-based compensation expense related to unvested awards expected to be recognized over a weighted average period			3 months 18 days
Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense related to unvested awards expected to be recognized over a weighted average period			1 year 7 months 6 days
Share-based compensation expense related to unvested restricted stock units not yet recognized	146,000,000		$ 146,000,000
Performance Stock Units ("PSUs") [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense related to unvested PSUs not yet recognized	$ 32,600,000		$ 32,600,000
HCM Stock Incentive Plan 2013 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common shares outstanding	738,370		738,370
HCM Equity Incentive Plan 2018 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common shares outstanding	11,998,634		11,998,634
Share based compensation arrangement by share based payment award exercise period after employment termination			90 days
Stock option awards, contractual term			10 years
Shares available for future grants of equity awards	11,704,190		11,704,190
HCM Equity Incentive Plan 2018 [Member] | Share Based Compensation Award Tranche Two [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock vesting period			3 years
HCM Equity Incentive Plan 2018 [Member] | Share-based Compensation Award, Tranche Three [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock vesting period			4 years
HCM Equity Incentive Plan 2018 [Member] | Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock vesting period			1 year
HCM Equity Incentive Plan 2018 [Member] | Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock vesting period			5 years
HCM Global Employee Stock Purchase Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares available for future grants of equity awards	1,472,021		1,472,021
Description for purchase price of fair market value of common stock			The purchase price is the lower of 85% of the fair market value of a share of common stock on (i) January 1 or (ii) the purchase date.
Percentage of fair market value of a share of common stock on offering date or purchase date			85%

Share-Based Compensation - Summ

Share-Based Compensation - Summary of Performance-Based Stock Option Activity (Detail) - Performance Shares [Member] - Share Based Compensation Plans [Member] - USD ($) $ / shares in Units, $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Shares
Options Outstanding at Beginning of Period	1,760,438
Options, Exercised	(3,857)
Options Outstanding at End of Period	1,756,581	1,760,438
Options Exercisable at End of Period	256,581
Weighted Average Exercise Price (per share)
Weighted Average Exercise Price at Beginning of Period	$ 66.10
Weighted Average Exercise Price, Exercised	(40.32)
Weighted Average Exercise Price at End of Period	65.26	$ 66.10
Weighted Average Exercise Price Exercisable at End of Period	$ 65.26
Weighted Average Remaining Contractual Term (in years)
Weighted Average Remaining Contractual Term (in years)	6 years 7 months 6 days	7 years 4 months 24 days
Weighted Average Remaining Contractual Term Exercisable (in years)	6 years 9 months 18 days
Aggregate Intrinsic Value
Aggregate Intrinsic Value, Options Outstanding	$ 4.5	$ 0.1
Aggregate Intrinsic Value, Options Exercisable	$ 0.7

Share-Based Compensation - Su_2

Share-Based Compensation - Summary of Performance Stock Units (Detail) - Performance Stock Units ("PSUs") [Member] - Share Based Compensation Plans [Member]	9 Months Ended
	Sep. 30, 2023 shares
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Shares, outstanding at Beginning of Period	706,467
Shares, Granted	662,723
Shares, Vested and released	(270,948)
Shares, Forfeited or canceled	(137,633)
Shares, outstanding at End of Period	960,609
Shares, releasable at End of Period	95,066

Share-Based Compensation - Su_3

Share-Based Compensation - Summary of Restricted Stock Units Activity (Detail) - Restricted Stock Units (RSUs) [Member] - Share Based Compensation Plans [Member]	9 Months Ended
	Sep. 30, 2023 shares
Restricted Stock Units
Shares, outstanding at Beginning of Period	2,890,817
Shares, Granted	1,748,812
Shares, Vested and released	(960,885)
Shares, Forfeited or canceled	(187,378)
Shares, outstanding at End of Period	3,491,366
Shares, releasable at End of Period	752,151

Share-Based Compensation - Su_4

Share-Based Compensation - Summary of Term-Based Stock Option Activity (Detail) - Term Based Stock Options [Member] - Share Based Compensation Plans [Member] - USD ($) $ / shares in Units, $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Shares
Options Outstanding at Beginning of Period	7,296,086
Options, Exercised	(700,872)
Options, Forfeited or expired	(66,005)
Options Outstanding at End of Period	6,529,209	7,296,086
Options Exercisable at End of Period	5,728,019
Weighted Average Exercise Price (per share)
Weighted Average Exercise Price at Beginning of Period	$ 50.59
Weighted Average Exercise Price, Exercised	(42.89)
Weighted Average Exercise Price, Forfeited or expired	(64.63)
Weighted Average Exercise Price at End of Period	(51.28)	$ (50.59)
Weighted Average Exercise Price Exercisable at End of Period	$ 48.09
Weighted Average Remaining Contractual Term (in years)
Weighted Average Remaining Contractual Term (in years)	5 years 8 months 12 days	6 years 4 months 24 days
Weighted Average Remaining Contractual Term Exercisable (in years)	5 years 6 months
Aggregate Intrinsic Value
Aggregate Intrinsic Value, Options Outstanding	$ 121.3	$ 117.4
Aggregate Intrinsic Value, Options Exercisable	$ 120.2

Share-Based Compensation - Su_5

Share-Based Compensation - Summary of Global Employee Stock Purchase Plan Activity (Detail) - Common Stock [Member] - HCM Global Employee Stock Purchase Plan [Member] - $ / shares	3 Months Ended	6 Months Ended	9 Months Ended
	Mar. 31, 2023	Jun. 30, 2023	Sep. 30, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares Issued	62,584	59,627	64,488
Purchase Price (per share)	$ 62.24	$ 56.92	$ 52.33

Revenue - Summary of Disaggrega

Revenue - Summary of Disaggregation of Revenue (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Disaggregation Of Revenue [Line Items]
Total revenue	$ 377.5	$ 315.6	$ 1,114	$ 910.1
Cloud Dayforce Recurring [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	279.6	207.8	819	590.7
Cloud Powerpay Recurring [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	24	22.6	72.2	66.5
Cloud Recurring [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	303.6	230.4	891.2	657.2
Other Recurring [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	21.8	33.4	67	105.6
Recurring Revenue [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	325.4	263.8	958.2	762.8
Professional Services and Other [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	$ 52.1	$ 51.8	$ 155.8	$ 147.3

Revenue - Additional Informatio

Revenue - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Revenue [Line Items]
Contract asset	$ 81.5		$ 81.5		$ 68.5
Remaining performance obligation, description of practical expedient			Performance obligations that are billed and recognized as they are delivered, primarily professional services contracts that are on a time and materials basis, are excluded from the transaction price for remaining performance obligations disclosed above
Recurring [Member]
Revenue [Line Items]
Float revenue	$ 38.8	$ 21.3	$ 127.5	$ 47.4

Revenue - Schedule of Changes i

Revenue - Schedule of Changes in Deferred Revenue (Detail) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Revenue from Contract with Customer [Abstract]
Deferred revenue, beginning of period	$ 41.2	$ 48.7
New billings	572.8	483.2
Revenue recognized	(542.5)	(486.5)
Effect of exchange rate	(23.7)	(2.8)
Deferred revenue, end of period	$ 47.8	$ 42.6

Revenue - Additional Informat_2

Revenue - Additional Information 1 (Detail) - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2023-10-01 $ in Millions	Sep. 30, 2023 USD ($)
Revenue [Line Items]
Remaining performance obligations recognition period	3 years
Revenue expected to be recognized, amount	$ 1,181.1

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Loss - Components of Accumulated Other Comprehensive Loss (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2023 USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ 2,109.4
Other comprehensive income before income taxes and reclassifications	(13.8)
Income tax expense	(0.8)
Reclassifications to earnings	4.5
Other comprehensive income	(10.1)
Ending balance	2,266.9
Foreign Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(234)
Other comprehensive income before income taxes and reclassifications	12.3
Other comprehensive income	12.3
Ending balance	(246.3)
Unrealized Gain (Loss) from Invested Customer Funds [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(96.4)
Other comprehensive income before income taxes and reclassifications	(1.5)
Income tax expense	(0.4)
Other comprehensive income	(1.1)
Ending balance	(97.5)
Pension Liability Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(154.6)
Other comprehensive income before income taxes and reclassifications	0
Income tax expense	(1.2)
Reclassifications to earnings	4.5
Other comprehensive income	3.3
Ending balance	(151.3)
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(485)
Ending balance	$ (495.1)

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Income Taxes [Line Items]
Valuation allowance	$ 48,100,000		$ 48,100,000
Income tax (benefit) expense	16,300,000	$ 4,000,000	51,300,000	$ 7,800,000
Tax expense attributable to global intangible low tax income			4,100,000
Tax expense attributable to share-based compensation			14,200,000
Current income tax benefit			12,700,000
International tax expense			4,200,000
Unrecognized tax benefits	0		$ 0		$ 0
Income tax examination description			With few exceptions, we are no longer subject to U.S. federal, state and local, or non-U.S. income tax examinations by tax authorities for years before 2018.
U.S. State tax expense			$ 3,800,000
Previous Acquisition [Member]
Income Taxes [Line Items]
Valuation allowance	31,000,000		31,000,000
State And Foreign Country [Member]
Income Taxes [Line Items]
Valuation allowance	$ 17,100,000		17,100,000
Base Erosion and Anti-Abuse Tax ("BEAT") [Member]
Income Taxes [Line Items]
Income tax (benefit) expense			$ 5,100,000

Net (Loss) Income per Share - S

Net (Loss) Income per Share - Schedule of Computations of Net (Loss) Income per Basic and Diluted Share (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Numerator:
Net (loss) income	$ (3.8)	$ 3.1	$ 9.9	$ (21)	$ (19.8)	$ (27.4)	$ 9.2	$ (68.2)
Denominator:
Weighted-average shares outstanding - basic	155,693,712			153,184,846			155,026,472	152,691,008
Effect of dilutive equity instruments							3,158,335
Weighted-average shares outstanding - diluted	155,693,712			153,184,846			158,184,807	152,691,008
Net (loss) income per share - basic	$ (0.02)			$ (0.14)			$ 0.06	$ (0.45)
Net (loss) income per share - diluted	$ (0.02)			$ (0.14)			$ 0.06	$ (0.45)

Net (Loss) Income per Share -_2

Net (Loss) Income per Share - Schedule of Potentially Dilutive Weighted Average Shares Excluded from Calculation of Net Loss per Diluted Share (Detail) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	3,051,487	5,356,629	2,447,755	5,633,051
Restricted Stock Units (RSUs) [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	566,712	1,831,846	64,406	1,359,481
Performance Stock Units ("PSUs") [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	570,045	1,430,383	352	1,370,918

Net (Loss) Income per Share - A

Net (Loss) Income per Share - Additional Information (Detail) Unit in Millions	9 Months Ended
	Sep. 30, 2023 Unit $ / shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Convertible senior notes would have been convertible into shares of our common stock | Unit	4.3
Convertible Senior Notes [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Initial Conversion Price per Share | $ / shares	$ 132.2