Dayforce (DAY) 10-Q 24 May 18 2018 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2018	May 23, 2018
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q1
Trading Symbol	CDAY
Entity Registrant Name	Ceridian HCM Holding Inc.
Entity Central Index Key	1,725,057
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		136,703,308

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Current assets:
Cash and equivalents	$ 62.2	$ 99.6
Trade and other receivables, net	81.1	79.9
Prepaid expenses	49.2	37.9
Other current assets	1.8	5.3
Total current assets before customer trust funds	194.3	222.7
Customer trust funds	4,293.9	4,099.7
Total current assets	4,488.2	4,322.4
Property, plant, and equipment, net	103.4	103.8
Goodwill	2,075.8	2,087.3
Other intangible assets, net	206.6	212.4
Other assets	5.5	4
Total assets	6,879.5	6,729.9
Current liabilities:
Current portion of long-term debt	0	0
Accounts payable	47.6	48.8
Accrued interest	2.7	15.9
Deferred revenue	18.5	16.8
Employee compensation and benefits	55.7	70
Other accrued expenses	16.7	15.5
Total current liabilities before customer trust funds obligations	141.2	167
Customer trust funds obligations	4,313.2	4,105.5
Total current liabilities	4,454.4	4,272.5
Long-term debt, less current portion	1,120.5	1,119.8
Employee benefit plans	147.3	152.4
Other liabilities	53.8	56.2
Total liabilities	5,776	5,600.9
Commitments and contingencies (Note 15)
Stockholders' equity:
Common stock, $0.01 par, 150,000,000 shares authorized, 65,374,309 shares issued and outstanding as of March 31, 2018 and 65,285,962 shares issued and outstanding as of December 31, 2017	0.7	0.7
Additional paid in capital	1,568.3	1,565.4
Accumulated deficit	(355.6)	(348.2)
Accumulated other comprehensive loss	(337.7)	(312.1)
Total stockholders' equity	1,066.4	1,091.2
Noncontrolling interest	37.1	37.8
Total equity	1,103.5	1,129
Total liabilities and equity	6,879.5	6,729.9
Senior Preferred Stock [Member]
Stockholders' equity:
Preferred stock	190.1	184.8
Junior Preferred Stock [Member]
Stockholders' equity:
Preferred stock	$ 0.6	$ 0.6

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2018	Dec. 31, 2017
Common Stock, par value	$ 0.01	$ 0.01
Common Stock, shares authorized	150,000,000	150,000,000
Common Stock, shares issued	65,374,309	65,285,962
Common Stock, shares outstanding	65,374,309	65,285,962
Senior Preferred Stock [Member]
Preferred Stock, par value	$ 0.01	$ 0.01
Preferred Stock, shares authorized	70,000,000	70,000,000
Preferred Stock, shares issued	16,802,144	16,802,144
Preferred Stock, shares outstanding	16,802,144	16,802,144
Junior Preferred Stock [Member]
Preferred Stock, par value	$ 0.01	$ 0.01
Preferred Stock, shares authorized	70,000,000	70,000,000
Preferred Stock, shares issued	58,244,308	58,244,308
Preferred Stock, shares outstanding	58,244,308	58,244,308

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenue:
Recurring services	$ 188.7	$ 171.4
Professional services and other	20.2	15.6
Total revenue	208.9	187
Cost of revenue:
Recurring services	62.7	58.8
Professional services and other	32.8	33.9
Product development and management	15.4	12.8
Depreciation and amortization	8.8	7.7
Total cost of revenue	119.7	113.2
Gross profit	89.2	73.8
Costs and expenses:
Selling, general, and administrative	65.6	60.7
Other (income) expense, net	(2.8)	0.9
Interest expense, net	22.2	21.4
Total costs and expenses	85	83
Income (loss) from continuing operations before income taxes	4.2	(9.2)
Income tax expense	6.8	2.5
Loss from continuing operations	(2.6)	(11.7)
Income from discontinued operations	0	0.5
Net loss	(2.6)	(11.2)
Net loss attributable to noncontrolling interest	(0.5)	0
Net loss attributable to Ceridian	$ (2.1)	$ (11.2)
Net loss per share attributable to Ceridian-basic and diluted (Note 18)	$ (0.11)	$ (0.24)
Weighted-average shares used to compute net loss per share attributable to Ceridian-basic and diluted (Note 18)	65,314,462	65,034,610

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Net loss		$ (2.6)	$ (11.2)
Items of other comprehensive income (loss) before income taxes:
Change in foreign currency translation adjustment		(16.1)	4.9
Change in unrealized (loss) gain from invested customer trust funds		(13.4)	1.8
Change in pension liability adjustment	[1]	2.9	2.6
Other comprehensive (loss) income before income taxes		(26.6)	9.3
Income tax expense, net		0.8	1.6
Other comprehensive (loss) income after income taxes		(27.4)	7.7
Comprehensive loss		(30)	(3.5)
Comprehensive (loss) income attributable to noncontrolling interest		(0.7)	0.1
Comprehensive loss attributable to Ceridian		$ (29.3)	$ (3.6)
[1]	The amount of the pension liability adjustment recognized in the consolidated statements of operations within selling, general, and administrative expense was $3.0 during the three months ended March 31, 2018, and $2.6 during the three months ended March 31, 2017.

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Selling, General and Administrative Expense [Member]
Pension liability adjustment	$ 3	$ 2.6

Condensed Consolidated Stateme7

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Net loss	$ (2.6)	$ (11.2)
Income from discontinued operations	0	(0.5)
Adjustments to reconcile net loss to net cash used in operating activities:
Deferred income tax benefit	(0.1)	(0.3)
Depreciation and amortization	14.9	14.1
Amortization of debt issuance costs and debt discount	1	0.8
Net periodic pension and postretirement cost	0.6	0.3
Share-based compensation	2.9	4.5
Other	(0.1)	(0.4)
Changes in operating assets and liabilities excluding effects of acquisitions and divestitures:
Trade and other receivables	(1.9)	4
Prepaid expenses and other current assets	(11.4)	(9.3)
Accounts payable and other accrued expenses	(0.5)	(5.5)
Deferred revenue	1.7	0.7
Employee compensation and benefits	(16.7)	(19.9)
Accrued interest	(13.1)	(13.5)
Accrued taxes	6.3	(8.5)
Other assets and liabilities	(4.3)	0.7
Net cash used in operating activities-continuing operations	(23.3)	(44)
Net cash used in operating activities-discontinued operations	(0.1)	(0.7)
Net cash used in operating activities	(23.4)	(44.7)
Cash Flows from Investing Activities
Purchase of customer trust funds marketable securities	(520.6)	(185.7)
Proceeds from sale and maturity of customer trust funds marketable securities	175.4	133.8
Net change in restricted cash and other restricted assets held to satisfy customer trust funds obligations	114.8	(860.1)
Expenditures for property, plant, and equipment	(2.9)	(2.6)
Expenditures for software and technology	(7.4)	(6.2)
Net proceeds from divestitures		0.9
Net cash used in investing activities	(240.7)	(919.9)
Cash Flows from Financing Activities
Increase in customer trust funds obligations, net	230.4	912
Repurchase of stock		(1.8)
Repayment of long-term debt obligations	(0.3)
Net cash provided by financing activities	230.1	910.2
Effect of Exchange Rate Changes on Cash	(3.4)	0.7
Net decrease in cash and equivalents	(37.4)	(53.7)
Cash and equivalents at beginning of period	99.6	131.4
Cash and equivalents at end of period	$ 62.2	$ 77.7

Organization

Organization	3 Months Ended
	Mar. 31, 2018
Organization	1. Organization Ceridian HCM Holding Inc. and subsidiaries (also referred to in this report as “Ceridian,” “we,” “our,” and “us”) offer a broad range of services and software designed to help employers to 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. Our operations are primarily located in the United States and Canada. As of March 31, 2018, Ceridian owned a controlling financial interest in a joint venture, WorkAngel Organisation Limited (“LifeWorks”) (the “Joint Venture Company”), which offers an employee engagement platform that delivers employee assistance programs, social recognition, exclusive perks and discounts, a private social network, employee and corporate wellness, and employee engagement analytics in the United States, Canada, and the United Kingdom. Prior to the formation of the joint venture, employee assistance programs were provided by Ceridian. On January 20, 2017, WorkAngel Organisation Limited changed its name to LifeWorks Corporation Ltd. On April 30, 2018, we distributed our ownership interest in the Joint Venture Company to our stockholders of record (the “LifeWorks Disposition”) prior to our initial public offering (“IPO”). Please refer to Note 19, “Subsequent Events,” for further discussion of the LifeWorks Disposition. As of March 31, 2018, Ceridian HCM Holding Inc. was primarily owned by Ceridian LLC (the “Parent”) and Ceridian Holding II LLC (“Ceridian Holding II”). The Parent was 100% owned by Foundation Holding LLC, which in turn was 100% owned by Ceridian Holding LLC (“Ceridian Holding”). The owners of Ceridian Holding and Ceridian Holding II included (i) affiliates and co-investors On April 30, 2018, we completed our IPO, in which we issued and sold 21,000,000 shares of common stock at a public offering price of $22.00 per share. We granted the underwriters a 30-day

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2018
Summary of Significant Accounting Policies	2. Summary of Significant 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 (“U.S. GAAP”) for interim financial information. Accordingly, they do not include all of the information and notes required by U.S. GAAP for complete financial statements. The accounting policies we follow are set forth in Note 2, “Summary of Significant Accounting Policies,” to Ceridian’s audited consolidated financial statements, included in our audited consolidated financial statements and notes thereto for the year ended December 31, 2017 (our “2017 Annual Report”), included within our prospectus dated April 25, 2018, as filed with the Securities and Exchange Commission (the “SEC”) on April 26, 2018, pursuant to Rule 424(b) under the Securities Act of 1933, as amended (File No. 333-223905) 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 condensed consolidated financial statements) necessary to present fairly in all material aspects the financial position, results of operations, comprehensive loss, and cash flows from all periods presented. Interim results are not necessarily indicative of results for a full year. Reverse Stock Split On April 10, 2018, we effected a 1-for-2 Use of Estimates The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of our financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Estimates that could significantly affect our results of operations or financial condition involve the assignment of fair values to goodwill and other intangible assets, the testing of impairment of long-lived assets, the determination of our liability for pensions and postretirement benefits, the determination of fair value of stock options granted, and the resolution of tax matters and legal contingencies. Please refer to our 2017 Annual Report for a further discussion of these estimates. Internally Developed Software Costs In accordance with Accounting Standards Codification (“ASC”) Topic 350, we capitalize costs associated with software developed or obtained for internal use when both the preliminary project stage is completed and our management has authorized further funding for the project, which it deems probable of completion. Capitalized software costs include only: (1) external direct costs of materials and services consumed in developing or obtaining the software; (2) payroll and payroll-related costs for employees who are directly associated with and who devote time to the project; and (3) interest costs incurred while developing the software. Capitalization of these costs ceases no later than the point at which the project is substantially complete and ready for its intended purpose. We do not include general and administrative costs and overhead costs in capitalizable costs. We charge research and development costs and other software maintenance costs related to software development to earnings as incurred. Foreign Currency Translation We have international operations whereby the local currencies serve as functional currencies. We translate foreign currency denominated assets and liabilities at the end-of-period Recently Issued and Adopted Accounting Pronouncements In May 2014 the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, non-public 2014-09 In preparation for this planned adoption, we have been evaluating the impact of the new standard to our financial statements and accompanying disclosures in the notes to our consolidated financial statements. Our assessment of the impact includes an evaluation of the five-step process set forth in the new standard along with the enhancement of disclosures that will be required. To date, we have developed our initial plan for implementing the standard, which includes identifying customer contracts within the scope of the new standard, identifying performance obligations within those customer contracts, and evaluating the impact of incremental variable consideration paid to obtain those customer contracts. We have also undertaken a comprehensive review of all contracts that fall under the scope of the new standard; and, as of the date of this report, we have substantially completed our review of in-scope Based on analysis performed to date, we expect that adoption of the new standard will result in changes to the classification and timing of our revenue recognition. Specifically, we expect an increase in revenue classified as professional services and other revenue and a reduction in revenue classified as recurring services revenue under the new standard, as compared to current U.S. GAAP. Further, we expect that the new standard will result in changes to the timing of our revenue recognition compared to current U.S. GAAP. In compliance with the new standard, a contractual asset will be reflected on the consolidated balance sheets and will be amortized over the customers’ period of benefit, which is generally three years. We also expect changes to the timing of certain incremental selling, general, and administrative expenses, as the new standard will also require capitalizing and amortizing certain selling expenses, such as commissions and bonuses paid to the sales force. These sales expenses will be amortized over the customer’s period of benefit. In periods of revenue growth, the changes above are expected to result in higher overall earnings before income taxes and net income when compared to current U.S. GAAP. We have not yet determined the impact of the disclosure requirements. The following table presents the anticipated impacts that the adoption of ASC 606 would have for the periods presented: Three Months ended March 31, 2018 As Reported Under ASC 606 Impact Revenue: Recurring services $ 188.7 $ 182.3 $ (6.4 ) Professional services and other 20.2 28.9 8.7 Total revenue $ 208.9 $ 211.2 $ 2.3 Operating profit $ 26.4 $ 30.6 $ 4.2 Three Months ended March 31, 2017 As Reported Under ASC 606 Impact Revenue: Recurring services $ 171.4 $ 165.5 $ (5.9 ) Professional services and other 15.6 22.5 6.9 Total revenue $ 187.0 $ 188.0 $ 1.0 Operating profit $ 12.2 $ 14.6 $ 2.4 In February 2016, the FASB issued ASU No. 2016-02, non-public right-of-use In February 2018 the FASB issued ASU 2018-02,

Discontinued Operations

Discontinued Operations	3 Months Ended
	Mar. 31, 2018
Discontinued Operations	3. Discontinued Operations Sale of Divested Benefits Continuation Businesses In the third quarter of 2013, we entered into an agreement for the sale of certain of our customer contracts for consumer-directed benefit services, including flexible spending accounts, health reimbursement accounts, health savings accounts, commuter (parking or transit) premium-only plans, and tuition reimbursement plans (collectively, the “Consumer-Directed Benefit Services”). During the third quarter of 2015, we completed two separate transactions that resulted in the sale of our benefits administration and post-employment health insurance portability compliance businesses (the “Divested Benefits Continuation Businesses”). These three transactions represented a strategic shift in our overall business and have had a significant impact on the financial statement results. Accordingly, the Divested Benefits Continuation Businesses, as well as the Consumer-Directed Benefit Services, have been presented as discontinued operations within the HCM segment in the condensed consolidated financial statements and accompanying notes for all periods presented. The amounts in the table below reflect the operating results and gain on sale of the Divested Benefits Continuation Businesses reported as discontinued operations, as well as supplemental disclosures of the discontinued operations: Three Months 2017 Net revenues $ — Loss from operations before income taxes (0.1 ) Gain on sale of businesses 0.9 Income tax expense (0.3 ) Income from discontinued operations, net of income taxes $ 0.5 For both sales of the Divested Benefits Continuation Businesses, consideration received was contingent upon the number and dollar value of successful customer transitions and was recorded when earned. Proceeds of $0.9 were received and earned based on the customers transitioned during the three months ended March 31, 2017. These proceeds were for a final purchase price true-up The remaining liabilities related to discontinued operations for the Divested Benefits Continuation Businesses as of March 31, 2018, and December 31, 2017, are immaterial amounts included in Other accrued expenses in our condensed consolidated balance sheets.

Noncontrolling Interest

Noncontrolling Interest	3 Months Ended
	Mar. 31, 2018
Noncontrolling Interest	4. Noncontrolling Interest On March 1, 2016, we entered into a strategic joint venture with WorkAngel Technology Limited (“WorkAngel”) in which we contributed our existing LifeWorks business to a newly formed English limited company (WorkAngel Organisation Limited or the “Joint Venture Company”). On January 20, 2017, WorkAngel Organisation Limited changed its name to LifeWorks Corporation Ltd. We have a controlling interest in the Joint Venture Company, including certain preferential distribution rights; therefore, the Joint Venture Company is consolidated within our financial statements, and the other joint venture ownership interest component is presented as a noncontrolling interest. Shareholder distributions will occur upon a liquidation event, as defined by the joint venture agreement. We hold all of the Class A shares, and former WorkAngel shareholders hold all of the Class B shares. Holders of Class A shares will have rights to 75 percent of the distributions up to $250 million, 25 percent of the distributions between $250 and $500 million, and 50 percent thereafter. Holders of Class B shares have rights to the remaining distributions. Income attributable to noncontrolling interest has been calculated by applying the Class B distribution percentages to the joint venture earnings as reported on a stand-alone basis. During the three months ended March 31, 2018, and 2017, there was loss attributable to the noncontrolling interest of $0.5 and $0.0, respectively. On April 30, 2018, we distributed our ownership interest in the Joint Venture Company to our stockholders of record prior to our IPO. Please refer to Note 19, “Subsequent Events,” for further discussion of the LifeWorks Disposition.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2018
Fair Value Measurements	5. Fair Value Measurements Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (an exit price). U.S. GAAP outlines a valuation framework and creates a fair value hierarchy intended to increase the consistency and comparability of fair value measurements and the related disclosures. Certain assets and liabilities must be measured at fair value, and disclosures are required for items measured at fair value. We measure our financial instruments using inputs from the following three levels of the fair value hierarchy. The three levels are as follows: • Level 1 inputs are unadjusted quoted prices in active markets for identical assets or liabilities that we have the ability to access at the measurement date. • Level 2 inputs include quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (that is, interest rates, yield curves, etc.), and inputs that are derived principally from or corroborated by observable market data by correlation or other means (market corroborated inputs). • Level 3 inputs include unobservable inputs that reflect our assumptions about the assumptions that market participants would use in pricing the asset or liability. These inputs are developed based on the best information available, including internal data. Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis As of March 31, 2018, our financial assets and liabilities measured at fair value on a recurring basis were categorized as follows: Total Level 1 Level 2 Level 3 Assets Available for sale customer trust funds assets $ 2,092.1 $ — $ 2,092.1 (a) $ — Total assets measured at fair value $ 2,092.1 $ — $ 2,092.1 $ — As of December 31, 2017, our financial assets and liabilities measured at fair value on a recurring basis were categorized as follows: Total Level 1 Level 2 Level 3 Assets Available for sale customer trust funds assets $ 1,782.1 $ — $ 1,782.1 (a) $ — Total assets measured at fair value $ 1,782.1 $ — $ 1,782.1 $ — (a) Fair value is based on inputs that are observable for the asset or liability, other than quoted prices. Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis During the three months ended March 31, 2018, and the year ended December 31, 2017, we did not re-measure

Customer Trust Funds

Customer Trust Funds	3 Months Ended
	Mar. 31, 2018
Customer Trust Funds	6. Customer Trust Funds Overview In connection with our U.S. and Canadian payroll and tax filing services, we collect funds for payment of payroll and taxes; temporarily hold such funds in trust until payment is due; remit the funds to the clients’ employees and appropriate taxing authority; file federal, state and local tax returns; and handle related regulatory correspondence and amendments. The assets held in trust are intended for the specific purpose of satisfying client fund obligations and therefore are not freely available for our general business use. Our customer trust funds are held and invested with the primary objectives being to ensure adequate liquidity to meet cash flow requirements and to protect the principal balance. In accordance with these objectives, we maintain on average approximately 45% of customer trust 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 55% of customer trust 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 in the trust 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 trust funds constitutes a component of our compensation for providing services under agreements with our customers. Investment income from invested customer trust funds included in revenue was $17.6 and $11.4 for the three months ended March 31, 2018, and 2017, respectively. Investment income includes interest income, realized gains and losses from sales of customer trust funds’ investments, and unrealized credit losses determined to be other-than-temporary. The amortized cost of customer trust funds as of as of March 31, 2018 and December 31, 2017, is comprised of the original cost of assets acquired. The amortized cost and fair values of investments of customer trust funds available for sale at as of March 31, 2018 and December 31, 2017, are as follows: Investments of Customer Trust Funds at March 31, 2018 Amortized Cost Gross Unrealized Fair Value Gain Loss Money market securities, investments carried at cost and other cash equivalents $ 2,191.8 $ 2,191.8 Available for sale investments: U.S. government and agency securities 623.1 — (14.4 ) 608.7 Canadian and provincial government securities 411.9 4.8 (1.9 ) 414.8 Corporate debt securities 781.9 0.5 (4.8 ) 777.6 Asset-backed securities 264.6 0.1 (3.1 ) 261.6 Mortgage-backed securities 12.9 — (0.3 ) 12.6 Other securities 17.0 — (0.2 ) 16.8 Total available for sale investments 2,111.4 5.4 (24.7 ) 2,092.1 Invested customer trust funds 4,303.2 $ 5.4 $ (24.7 ) 4,283.9 Trust receivables 10.0 10.0 Total customer trust funds $ 4,313.2 $ 4,293.9 Investments of Customer Trust Funds at December 31, 2017 Amortized Cost Gross Unrealized Fair Value Gain Loss Money market securities, investments carried at cost and other cash equivalents $ 2,309.3 $ — $ — $ 2,309.3 Available for sale investments: U.S. government and agency securities 584.6 0.1 (7.1 ) 577.6 Canadian and provincial government securities 418.2 6.6 (1.5 ) 423.3 Corporate debt securities 472.3 0.8 (2.5 ) 470.6 Asset-backed securities 280.8 — (1.8 ) 279.0 Mortgage-backed securities 15.0 — (0.2 ) 14.8 Other securities 17.0 — (0.2 ) 16.8 Total available for sale investments 1,787.9 7.5 (13.3 ) 1,782.1 Invested customer trust funds 4,097.2 $ 7.5 $ (13.3 ) 4,091.4 Trust receivables (a) 8.3 8.3 Total customer trust funds $ 4,105.5 $ 4,099.7 The following represents the gross unrealized losses and the related fair value of the investments of customer trust funds available for sale, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at March 31, 2018. Less than 12 months 12 months or more Total Unrealized Fair Unrealized Fair Unrealized Fair U.S. government and agency securities $ (9.5 ) $ 493.6 $ (4.9 ) $ 112.0 $ (14.4 ) $ 605.6 Canadian and provincial government securities (1.9 ) 138.1 — — (1.9 ) 138.1 Corporate debt securities (4.0 ) 300.8 (0.8 ) 39.0 (4.8 ) 339.8 Asset-backed securities (2.9 ) 211.9 (0.2 ) 17.8 (3.1 ) 229.7 Mortgage-backed securities (0.1 ) 3.3 (0.2 ) 9.1 (0.3 ) 12.4 Other securities (a) 5.0 (0.2 ) 12.5 (0.2 ) 17.5 Total available for sale investments $ (18.4 ) $ 1,152.7 $ (6.3 ) $ 190.4 $ (24.7 ) $ 1,343.1 (a) These investments have been in an unrealized loss position; however, the amount of unrealized loss is less than $0.05. Management does not believe that any individual unrealized loss as of March 31, 2018, represents an other-than-temporary impairment. 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 March 31, 2018, 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. March 31, 2018 Cost Fair Value Due in one year or less $ 2,864.5 $ 2,864.6 Due in one to three years 525.6 522.0 Due in three to five years 544.8 538.0 Due after five years 368.3 359.3 Invested customer trust funds $ 4,303.2 $ 4,283.9

Property, Plant, and Equipment

Property, Plant, and Equipment	3 Months Ended
	Mar. 31, 2018
Property, Plant, and Equipment	7. Property, Plant, and Equipment Property, plant, and equipment consist of the following: March 31, December 31, 2018 2017 Land $ 7.5 $ 7.5 Software 212.1 207.2 Machinery and equipment 123.0 122.1 Buildings and improvements 36.8 36.6 Total property, plant, and equipment 379.4 373.4 Accumulated depreciation (276.0 ) (269.6 ) Property, plant, and equipment, net $ 103.4 $ 103.8 Depreciation expense of property, plant, and equipment totaled $9.4 and $8.7 for the three months ended March 31, 2018, and 2017, respectively.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	3 Months Ended
	Mar. 31, 2018
Goodwill and Intangible Assets	8. Goodwill and Intangible Assets Goodwill Goodwill and changes therein were as follows for the three months ended March 31, 2018 and the year ended December 31, 2017: HCM LifeWorks Total Balance at December 31, 2016 $ 1,933.1 $ 124.9 $ 2,058.0 Translation 27.9 1.4 29.3 Balance at December 31, 2017 1,961.0 126.3 2,087.3 Translation (11.0 ) (0.5 ) (11.5 ) Balance at March 31, 2018 $ 1,950.0 $ 125.8 $ 2,075.8 Intangible Assets Other intangible assets consist of the following as of March 31, 2018: Gross Carrying Accumulated Net Estimated Life Customer lists and relationships $ 246.8 $ (213.2 ) $ 33.6 5-15 Trade name 173.9 (2.0 ) 171.9 — Technology 154.4 (153.3 ) 1.1 2-7 Total other intangible assets $ 575.1 $ (368.5 ) $ 206.6 Other intangible assets consist of the following as of December 31, 2017: Gross Carrying Accumulated Net Estimated Life Customer lists and relationships $ 248.4 $ (209.3 ) $ 39.1 5-15 Trade name 174.0 (2.1 ) 171.9 — Technology 155.6 (154.2 ) 1.4 2-7 Total other intangible assets $ 578.0 $ (365.6 ) $ 212.4 Amortization expense related to definite-lived intangible assets was $5.5 and $5.4 for the three months ended March 31, 2018, and 2017, respectively.

Debt

Debt	3 Months Ended
	Mar. 31, 2018
Debt	9. Debt Overview Our debt obligations consisted of the following as of the periods presented: March 31, December 31, 2018 2017 Term Debt, interest rate of 5.4% and 5.1% as of March 31, 2018 and December 31, 2017, respectively $ 657.0 $ 657.3 Senior Notes, interest rate of 11.0% as of March 31, 2018 and December 31, 2017, respectively 475.0 475.0 Revolving Credit Facility ($130.0 available capacity less amounts reserved for letters of credit, which were $8.1 and $8.4 as of March 31, 2018 and December 31, 2017, respectively) — — Total debt 1,132.0 1,132.3 Less unamortized discount on Term Debt 0.7 0.9 Less unamortized debt issuance costs on Senior Notes and Term Debt 10.8 11.6 Less current portion of long-term debt — — Long-term debt, less current portion $ 1,120.5 $ 1,119.8 Senior Secured Credit Facility Ceridian entered into a credit agreement dated as of November 14, 2014, pursuant to the terms of which Ceridian became borrower of (i) a $702.0 term loan debt facility (the “Term Debt”) and (ii) a $130.0 revolving credit facility (the “Revolving Credit Facility”) (the Term Debt and the Revolving Credit Facility are together referred to as the “Senior Secured Credit Facility”). The Senior Secured Credit Facility is secured by all assets of Ceridian and is senior to Ceridian’s other debt. The Term Debt has a maturity date of September 2020, and the Revolving Credit Facility has a maturity date of September 2019. During the three months ended March 31, 2018, Ceridian made a final mandatory pre-payment Senior Notes Ceridian issued its senior notes due 2021 (“Senior Notes”) on October 1, 2013, in the principal amount of $475.0 guaranteed by Parent and its payment systems business unit (“Comdata”). In connection with the Parent’s divestiture of Comdata on November 14, 2014, Ceridian met the credit conditions to allow the Senior Notes to transition to stand-alone obligations of Ceridian. The Senior Notes are unsecured. Future Payments and Maturities of Debt The future principal payments and maturities of our indebtedness are as follows: Years Ending December 31, Amount 2018 $ — 2019 — 2020 657.0 2021 475.0 2022 — Thereafter — $ 1,132.0 Fair Value of Debt Our debt does not trade in active markets. 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 our indebtedness was estimated to be $1,150.2 and $1,154.1 as of March 31, 2018 and December 31, 2017, respectively. Debt Refinancing Using the net proceeds received from the IPO and concurrent private placement, we satisfied and discharged the indenture governing our Senior Notes on April 30, 2018, and the Senior Notes will be redeemed as of May 30, 2018. Concurrently, we completed the refinancing of our Senior Secured Credit Facility. Please refer to Note 19, “Subsequent Events,” for further discussion of these transactions.

Employee Benefit Plans

Employee Benefit Plans	3 Months Ended
	Mar. 31, 2018
Employee Benefit Plans	10. Employee Benefit Plans The components of net periodic cost for our defined benefit pension plan and for our postretirement benefit plan are included in the following tables: Three Months ended March 31, 2018 2017 Net Periodic Pension Cost Interest cost $ 4.1 $ 4.3 Expected return on plan assets (6.5 ) (6.6 ) Actuarial loss amortization 3.6 3.2 Net periodic pension cost $ 1.2 $ 0.9 Three Months ended March 31, 2018 2017 Net Periodic Postretirement Benefit Service cost $ (0.1 ) $ (0.1 ) Interest cost 0.1 0.1 Actuarial gain amortization (0.6 ) (0.6 ) Net periodic postretirement benefit gain $ (0.6 ) $ (0.6 )

Share-Based Compensation

Share-Based Compensation	3 Months Ended
	Mar. 31, 2018
Share-Based Compensation	11. Share-Based Compensation HCM Share-Based Compensation Plans Prior to November 1, 2013, Ceridian employees participated in a share-based compensation plan of the ultimate parent of Ceridian. The 2007 Stock Incentive Plan (“2007 SIP”) authorized the issuance of up to 10,540,540 shares of common stock of Parent to eligible participants through stock options and stock awards. Eligible participants in the 2007 SIP included the Parent’s directors, employees and consultants. Effective November 1, 2013, most participants who held stock options under the 2007 SIP converted their options to a newly created option plan, the 2013 Ceridian HCM Holding Inc. Stock Incentive Plan (“2013 HCM SIP”). A small number of participants maintained their stock options in the 2007 SIP. As of March 31, 2018, there were 10,000 stock options outstanding under the 2007 SIP. The 2013 HCM SIP authorized the issuance of up to 12,500,000 shares of common stock of Ceridian to eligible participants through stock options and other stock awards. On March 20, 2017, the Board of Directors approved an increase to the number of authorized shares under the 2013 HCM SIP to 15,000,000. Eligible participants in the 2013 HCM SIP include Ceridian’s directors, employees, and consultants. As part of the 2013 HCM SIP, the Board of Directors approved a stock appreciation rights program that authorized the issuance of up to 600,000 stock appreciation rights. As of March 31, 2018, there were 260,850 outstanding stock appreciation rights. As of March 31, 2018, there were 1,823,963 shares available for future grants of stock options and stock awards under the 2013 HCM SIP. Stock options awarded under the 2013 HCM SIP vest either annually on a pro rata basis over a 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 employment, all vested options become eligible to be exercised generally within 90 days after termination. The stock option awards have a 10-year Share-based compensation expense for the HCM plans was $2.7 and $4.2 for three months ended March 31, 2018, and 2017, respectively. On April 24, 2018, in connection with the IPO, the Board of Directors approved the 2018 Equity Incentive Plan (“2018 EIP”), which authorizes the issuance of up to 13,500,000 shares of common stock to eligible participants through equity awards. Concurrent with the IPO, 4,673,605 stock options were granted to current employees under the 2018 EIP. The exercise price of such stock options is $22.00, the IPO price, and the options will vest over four years. Performance-Based Stock Options Performance-based option activity for the period the period is as follows: Shares Weighted (per share) Weighted Aggregate Options outstanding at December 31, 2017 1,035,647 $ 13.46 3.5 $ — Granted — — — — Exercised — — — — Forfeited or expired (5,572 ) (13.46 ) — — Options outstanding at March 31, 2018 1,030,075 $ 13.46 3.2 $ — As of March 31, 2018, there was $5.3 of share-based compensation expense related to unvested performance-based stock options not yet recognized. Term-Based Stock Options Term-based option activity for the period is as follows: Shares Weighted Weighted Aggregate Options outstanding at December 31, 2017 10,991,681 $ 16.52 6.9 $ 48.8 Granted 175,000 20.96 — — Exercised (17,357 ) (19.76 ) — — Forfeited or expired (41,988 ) (17.38 ) — — Options outstanding at March 31, 2018 11,107,336 $ 16.59 6.7 $ 48.5 Options exercisable at March 31, 2018 7,214,169 $ 16.19 5.6 $ 34.4 As of March 31, 2018, there was $20.8 of share-based compensation expense related to unvested term based awards not yet recognized, which is expected to be recognized over a weighted average period of 1.2 years. As of March 31, 2018, there were 7,214,169 vested term-based stock options. Restricted Stock Units Restricted stock units (“RSUs”) activity for the period is as follows. Shares RSUs outstanding at December 31, 2017 605,990 Granted — Shares issued upon vesting of RSUs (76,190 ) Forfeited or canceled — RSUs outstanding at March 31, 2018 529,800 RSUs releasable at March 31, 2018 125,000 During the three months ended March 31, 2018, 201,190 restricted stock units vested. Of the vested restricted stock units, 76,190 shares of common stock were issued, and 125,000 restricted stock units remained vested and releasable. As of March 31, 2018, there were 404,800 unvested restricted stock units outstanding. Restricted stock units generally vest annually over a three- or four-year period. As of March 31, 2018, there was $6.3 of share-based compensation expense related to unvested restricted stock units not yet recognized, which expected to be recognized over a weighted average period of 3.0 years. Joint Venture Company Share-Based Compensation Plan In connection with the formation of the Joint Venture Company, a share-based compensation scheme under English law (the “JV SIP”) was created. The JV SIP has authorized the issuance of 3,551,911 options to purchase Class C or Class D shares of the Joint Venture Company. Class C shares are ordinary shares in the Joint Venture Company with rights and liquidation preferences comparable to Class B shares. Class D shares are ordinary shares in the Joint Venture Company with rights and liquidation preferences comparable to Class A shares. Eligible participants in the JV SIP include the Joint Venture Company directors and employees. Share-based compensation expense for the JV SIP was $0.2 and $0.3 for the years ended March 31, 2018 and 2017, respectively. Class C Stock Options Class C stock option activity for the period is as follows: Shares Weighted Weighted Aggregate Options outstanding at December 31, 2017 1,104,474 $ 2.44 6.9 $ 3.0 Granted 31,416 3.90 — — Exercised — — — — Forfeited or expired (21,590 ) (4.57 ) — — Options outstanding at March 31, 2018 1,114,300 $ 2.44 6.7 $ 3.1 Options exercisable at March 31, 2018 624,820 $ 1.74 6.5 $ 2.2 Class D Stock Options Class D stock option activity for the period is as follows: Shares Weighted Weighted Aggregate Options outstanding at December 31, 2017 986,525 $ 8.60 5.8 $ 1.0 Granted 31,414 7.91 — — Exercised — — — — Forfeited or expired (26,200 ) (8.83 ) — — Options outstanding at March 31, 2018 991,739 $ 8.57 5.5 $ 1.1 Options exercisable at March 31, 2018 404,014 $ 8.58 5.5 $ 0.4 As of March 31, 2018, there was $2.4 of share-based compensation related to unvested awards not yet recognized, which is expected to be recognized over a weighted average period of 1.8 years. As of March 31, 2018, there were 624,820 vested Class C options and 404,014 vested Class D options.

Supplementary Data to Statement

Supplementary Data to Statements of Operations	3 Months Ended
	Mar. 31, 2018
Supplementary Data to Statements of Operations	12. Supplementary Data to Statements of Operations Other (income) expense, net consisted of foreign currency translation income of $2.8 for the three months ended March 31, 2018, and foreign currency translation expense of $0.9 for the three months ended March 31, 2017. For the three months ended March 31, 2018, and 2017, the foreign currency translation is primarily related to foreign currency remeasurement gains and losses resulting from intercompany receivables or payables denominated in foreign currencies.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	3 Months Ended
	Mar. 31, 2018
Accumulated Other Comprehensive Income (Loss)	13. Accumulated Other Comprehensive Income (Loss) The components of accumulated other comprehensive income (loss) were as follows: Foreign Unrealized Gain Pension Total Balance as of December 31, 2017 $ (160.6 ) $ (9.0 ) $ (142.5 ) $ (312.1 ) Other comprehensive income (loss) before income taxes and reclassifications (15.9 ) (13.4 ) (0.1 ) (29.4 ) Income tax benefit — 0.8 — 0.8 Reclassifications to earnings — — 3.0 3.0 Other comprehensive income (loss) attributable to Ceridian (15.9 ) (12.6 ) 2.9 (25.6 ) Balance as of March 31, 2018 $ (176.5 ) $ (21.6 ) $ (139.6 ) $ (337.7 ) During the three months ended March 31, 2018, other comprehensive loss attributable to noncontrolling interest was $0.2, entirely related to foreign currency translation. During the three months ended March 31, 2017, other comprehensive income attributable to noncontrolling interest was $0.1, entirely related to foreign currency translation.

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2018
Income Taxes	14. Income Taxes Our income tax provision (benefit) represents federal, state, and international taxes on our income recognized for financial statement purposes, which includes the effect of temporary differences between financial statement income and income recognized for tax return purposes. Our income tax provision is negatively affected by the need for a valuation allowance against our deferred tax assets. We record a valuation allowance to reduce our deferred tax asset when it is more likely than not that all or a portion of the deferred tax asset will not be realized. In determining the requirement for a valuation allowance, we assess the available positive and negative evidence to estimate if sufficient future taxable income will be generated to utilize our deferred tax assets not already identified as requiring a valuation allowance. As of March 31, 2018, and December 31, 2017, excluding the Joint Venture Company, we continued to record a full valuation allowance against our domestic deferred tax assets that are not offset by the reversal of deferred tax liabilities. In the future, if it is determined that we no longer have a requirement to record a valuation allowance against all or a portion of our deferred tax assets, the release of the valuation allowance would have a positive impact on our income tax provision. On December 22, 2017, the Tax Cut and Jobs Act legislation (the “Act”) was signed into law. The Act made broad and complex changes to the U.S. tax code including: (a) lower U.S. federal corporate income tax rate from 35% to 21% effective January 1, 2018, (b) accelerated expensing of qualified capital investments for a specific period, and (c) a transition from a worldwide tax system to a territorial tax system. ASC 740, Income Taxes, requires a company to record the effects of a tax law change in the period of enactment; however, shortly after enactment of the Tax Act, the SEC staff issued Staff Accounting Bulletin (“SAB”) 118, which allows a company to record a provisional amount when it does not have the necessary information available to complete its accounting for the change in the tax law. The FASB subsequently issued ASU 2018-05 2018-05 We recorded income tax expense of $6.8 during the three months ended March 31, 2018. Included in this amount are the estimated impacts of requiring a current inclusion in U.S. federal income of certain earnings of controlled foreign corporations, allowing a domestic corporation an immediate deduction in the U.S. taxable income for a portion of its foreign-derived intangible income, and the base erosion anti-abuse tax. In January and April of 2018, the Internal Revenue Service (the “IRS”) issued guidance that provides additional clarification on certain aspects of the transition tax calculation. We did not record any change to our transition tax liability during the three months ended March 31, 2018. We are considering the additional IRS guidance as we continue to gather additional information related to the transition tax estimates and deferred tax estimates to more precisely compute the transition tax and remeasurement of deferred taxes. We anticipate additional IRS guidance relative to the impacts of the Act will be forthcoming throughout 2018. The total amount of unrecognized tax benefits as of March 31, 2018, and December 31, 2017, were $10.5, including $2.1 of accrued interest, and $10.5, including $2.2 of accrued interest, respectively. Of the total amount of unrecognized tax benefits as of March 31, 2018, $9.9 represents the amount that, if recognized, would favorably impact our effective income tax rate. It is reasonable to expect that the amount of unrecognized tax benefits will change in the next twelve months; however, we do not expect the change to have a significant impact on our results of operations or financial condition. We file income tax returns in the U.S. federal jurisdiction, various states, and foreign jurisdictions. With a few exceptions we are no longer subject to U.S. federal, state and local, or non-U.S.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2018
Commitments and Contingencies	15. 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.

Related Party Transactions

Related Party Transactions	3 Months Ended
	Mar. 31, 2018
Related Party Transactions	16. Related Party Transactions Management Agreements Ceridian is party to management agreements with affiliates of our Sponsors, Fidelity National Financial, Inc. (“FNF”) and THLM. FNF assigned its management agreement to Cannae in November 2017. Pursuant to these management agreements, Cannae and THLM each, respectively, agree to provide the Company with financial advisory, strategic, and general oversight services. These management agreements provide that we will pay annual management fees to each of Cannae and THLM in an amount equal to the greater of (a) $0.9, or (b) 0.5 percent of Adjusted EBITDA. Adjusted EBITDA, for purposes of the management agreements, is EBITDA as defined in the Ceridian Senior Secured Credit Facility, further adjusted to exclude the payments made pursuant to the management agreements and certain stock options or other equity compensation. We recorded a management fee expense in selling, general, and administrative expense of $0.5, and $0.5 for the three months ended March 31, 2018, and 2017, respectively, related to these management agreements. In April 2018, the management agreements terminated upon consummation of our IPO. Upon termination, the management agreements provided that we pay a termination fee equal to the net present value of the management fee for a seven year period, which was $11.3 million. Indebtedness Prior to its split-off split-off Service and Vendor Related Agreements Ceridian is a party to a service agreement with CompuCom Systems, Inc. (“CompuCom”), an investment portfolio company of THL Partners. Pursuant to the service agreement, CompuCom agrees to provide us with service desk and desk side support services. Pursuant to this arrangement, we made payments to CompuCom totaling $0.2, and $0.5 during the three months ended March 31, 2018, and 2017, respectively. Other Transactions We provide Dayforce and related services to The Stronach Group, for which we recorded revenue of $0.1 for the three months ended March 31, 2018. Alon Ossip, the brother of David Ossip, is the chief executive officer of The Stronach Group. We provide Dayforce and related services to FNF for which we recorded revenue of $0.1 and $0.3 for the three months ended March 31, 2018, and 2017, respectively.

Financial Data by Segment and G

Financial Data by Segment and Geographic Area	3 Months Ended
	Mar. 31, 2018
Financial Data by Segment and Geographic Area	17. Financial Data by Segment and Geographic Area Segments As of March 31, 2018, Ceridian had two operating and reportable segments, HCM and LifeWorks, based on the separate management teams, solutions, and objectives of the businesses. Our operating and reportable segments align with how management monitored operating performance, allocates resources, and deploys capital. There were two chief operating decision makers (“CODM”), the Chief Executive Officer (“CEO”) of HCM and the CEO of LifeWorks. Both reported directly to their separate Boards of Directors. Segment performance is based on revenues and operating income or income (loss) before interest expense and income taxes. Interest expense and income taxes are not indicative of operating performance, and, as a result are not included in the measures that are reviewed by the CODMs. The amounts in the following tables are obtained from reports used by our senior management team. There are no significant non-cash Three Months ended March 31, 2018 HCM LifeWorks Total Cloud revenue $ 125.2 $ — $ 125.2 Bureau revenue 62.0 — 62.0 LifeWorks revenue — 21.7 21.7 Total revenue 187.2 21.7 208.9 Operating profit (loss) 27.3 (0.9 ) 26.4 Depreciation and amortization 13.9 1.0 14.9 Capital expenditures $ 10.3 $ — $ 10.3 Three Months ended March 31, 2017 HCM LifeWorks Total Cloud revenue $ 90.7 $ — $ 90.7 Bureau revenue 76.7 — 76.7 LifeWorks revenue — 19.6 19.6 Total revenue 167.4 19.6 187.0 Operating profit 10.9 1.3 12.2 Depreciation and amortization 13.1 1.0 14.1 Capital expenditures $ 8.7 $ 0.1 $ 8.8 Our Solutions We categorize our solutions into three categories: Cloud HCM (“Cloud”), Bureau HCM (“Bureau”), and LifeWorks offerings. • Cloud revenue is generated from HCM solutions that are delivered via two cloud offerings: Dayforce and Powerpay. The Dayforce offering is differentiated from our market competition as being a single application that offers a comprehensive range of functionality, including global HR, payroll, benefits, workforce management, and talent management on web and native iOS and Android platforms. Dayforce revenue is primarily generated from monthly recurring fees charged on a PEPM basis, generally one-month per-employee, per-process year-end • Bureau revenue is generated primarily from HCM solutions delivered via a service-bureau model. These solutions are delivered via three primary service lines: payroll, payroll-related tax filing services, and outsourced human resource solutions. Revenue from payroll services is generated from recurring fees charged on a per-process year-end HCM-related • LifeWorks joint venture revenue is primarily generated from employee assistance, wellness, recognition, and incentive programs offered directly by LifeWorks in the United States, Canada, the United Kingdom and various other countries through LifeWorks’ network of contractors. LifeWorks offers employee engagement services, such as employee assistance programs, social recognition, discounts from participating vendors, a private social network, employee and corporate wellness, and employee engagement analytics. Revenue by solution is as follows: Three Months ended March 31, 2018 2017 Cloud $ 125.2 $ 90.7 Bureau 62.0 76.7 LifeWorks 21.7 19.6 Total revenue $ 208.9 $ 187.0

Net Loss per Share

Net Loss per Share	3 Months Ended
	Mar. 31, 2018
Net Loss per Share	18. Net Loss per Share We compute net loss per share of common stock using the treasury stock method. Basic net loss per share is computed by dividing net loss attributable to Ceridian available to common stockholders by the weighted-average number of shares of common stock outstanding during the period. For the calculation of diluted net loss per share, net loss per share is adjusted by the effect of dilutive securities, including awards under our share-based compensation plans. Diluted net loss per share is computed by dividing the resulting net loss attributable to Ceridian available to common stockholders by the weighted-average number of fully diluted common shares outstanding. During the three months ended March 31, 2018, and 2017, our potential dilutive shares, such as stock options, RSUs, and shares of senior and junior convertible preferred stock were not included in the computation of diluted net loss per share as the effect of including these shares in the calculation would have been anti-dilutive. The numerators and denominators of the basic and diluted net loss per share computations are calculated as follows: Three Months ended March 31, 2018 2017 Numerator: Net loss attributable to Ceridian $ (2.1 ) $ (11.2 ) Less: Income from discontinued operations — 0.5 Net loss from continuing operations attributable to Ceridian (2.1 ) (11.7 ) Less: Senior Preferred Stock dividends declared 5.3 4.7 Net loss from continuing operations attributable to Ceridian available to common stockholders $ (7.4 ) $ (16.4 ) Denominator: Weighted-average shares outstanding—basic 65,314,462 65,034,610 Weighted-average shares outstanding—diluted 65,314,462 65,034,610 Net loss per share from continuing operations attributable to Ceridian—basic and diluted $ (0.11 ) $ (0.25 ) Net income per share from discontinued operations—basic and diluted $ — $ 0.01 Net loss per share attributable to Ceridian—basic and diluted $ (0.11 ) $ (0.24 ) The following potentially dilutive shares were excluded from the calculation of diluted net loss per share because their effect would have been anti-dilutive: Three Months ended March 31, 2018 2017 Senior convertible preferred stock 16,802,144 16,802,144 Junior convertible preferred stock 58,244,308 58,244,308 Stock options 12,055,839 10,715,493 Outstanding RSUs 581,440 218,741 Pro Forma Net Loss Per Share Pro forma basic and diluted net loss per share for the three months ended March 31, 2018, has been computed to reflect the number of shares that will be outstanding after the internal corporate reorganization subsequent to our IPO and concurrent private placement, in which our senior convertible preferred stock and junior convertible preferred stock was converted into common stock. Pro forma basic and diluted net loss per share does not give effect to our IPO or concurrent private placement and the use of proceeds therefrom. The numerators and denominators of pro forma basic and diluted net loss per share computations are calculated as follows: Three Months 2018 Numerator: Net loss attributable to Ceridian $ (2.1 ) Less: Income from discontinued operations — Net loss from continuing operations attributable to Ceridian $ (2.1 ) Denominator: Weighted-average shares outstanding—basic and diluted 65,314,462 Pro forma adjustment to reflect assumed conversion of senior convertible preferred stock 13,124,574 Pro forma adjustment to reflect assumed conversion of junior convertible preferred stock 29,122,075 Pro forma weighted-average shares outstanding used to computed pro forma net loss per share—basic and diluted 107,561,111 Pro forma net loss per share from continuing operations attributable to Ceridian—basic and diluted $ (0.02 ) Pro forma net income per share from discontinued operations—basic and diluted $ — Pro forma net loss per share attributable to Ceridian—basic and diluted $ (0.02 )

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2018
Subsequent Events	19. Subsequent Events Reverse Stock Split On April 10, 2018, we effected a 1-for-2 Initial Public Offering and Concurrent Private Placement On April 30, 2018, we completed our initial public offering (“IPO”), in which we issued and sold 21,000,000 shares of common stock at a public offering price of $22.00 per share. We granted the underwriters a 30-day Debt Refinancing Concurrently with closing of the IPO and the concurrent private placement, we applied the net proceeds from the IPO to satisfy and to discharge the indenture governing our outstanding $475.0 principal amount Senior Notes, and they will be redeemed on May 30, 2018. We also refinanced our remaining indebtedness under our (i) $702.0 (original principal amount) Senior Term Debt and (ii) $130.0 Revolving Credit Facility, including accrued interest and related costs and expenses, with new senior credit facilities consisting of a $680.0 term loan debt facility and a $300.0 revolving credit facility. LifeWorks Disposition Contemporaneously with the IPO and concurrent private placement, we distributed our interest in LifeWorks to our existing stockholders of record prior to the IPO on a pro rata basis in accordance with their pro rata interests in us. As a result of the LifeWorks Disposition, we no longer have any material obligations under the LifeWorks joint venture agreement. In addition, upon completion of the LifeWorks Disposition, LifeWorks is no longer a separate reportable segment, and we will no longer have a non-controlling

Summary of Significant Accoun27

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2018
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 (“U.S. GAAP”) for interim financial information. Accordingly, they do not include all of the information and notes required by U.S. GAAP for complete financial statements. The accounting policies we follow are set forth in Note 2, “Summary of Significant Accounting Policies,” to Ceridian’s audited consolidated financial statements, included in our audited consolidated financial statements and notes thereto for the year ended December 31, 2017 (our “2017 Annual Report”), included within our prospectus dated April 25, 2018, as filed with the Securities and Exchange Commission (the “SEC”) on April 26, 2018, pursuant to Rule 424(b) under the Securities Act of 1933, as amended (File No. 333-223905) 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 condensed consolidated financial statements) necessary to present fairly in all material aspects the financial position, results of operations, comprehensive loss, and cash flows from all periods presented. Interim results are not necessarily indicative of results for a full year.
Reverse Stock Split	Reverse Stock Split On April 10, 2018, we effected a 1-for-2
Use of Estimates	Use of Estimates The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of our financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Estimates that could significantly affect our results of operations or financial condition involve the assignment of fair values to goodwill and other intangible assets, the testing of impairment of long-lived assets, the determination of our liability for pensions and postretirement benefits, the determination of fair value of stock options granted, and the resolution of tax matters and legal contingencies. Please refer to our 2017 Annual Report for a further discussion of these estimates.
Internally Developed Software Costs	Internally Developed Software Costs In accordance with Accounting Standards Codification (“ASC”) Topic 350, we capitalize costs associated with software developed or obtained for internal use when both the preliminary project stage is completed and our management has authorized further funding for the project, which it deems probable of completion. Capitalized software costs include only: (1) external direct costs of materials and services consumed in developing or obtaining the software; (2) payroll and payroll-related costs for employees who are directly associated with and who devote time to the project; and (3) interest costs incurred while developing the software. Capitalization of these costs ceases no later than the point at which the project is substantially complete and ready for its intended purpose. We do not include general and administrative costs and overhead costs in capitalizable costs. We charge research and development costs and other software maintenance costs related to software development to earnings as incurred.
Foreign Currency Translation	Foreign Currency Translation We have international operations whereby the local currencies serve as functional currencies. We translate foreign currency denominated assets and liabilities at the end-of-period
Recently Issued and Adopted Accounting Pronouncements	Recently Issued and Adopted Accounting Pronouncements In May 2014 the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, non-public 2014-09 In preparation for this planned adoption, we have been evaluating the impact of the new standard to our financial statements and accompanying disclosures in the notes to our consolidated financial statements. Our assessment of the impact includes an evaluation of the five-step process set forth in the new standard along with the enhancement of disclosures that will be required. To date, we have developed our initial plan for implementing the standard, which includes identifying customer contracts within the scope of the new standard, identifying performance obligations within those customer contracts, and evaluating the impact of incremental variable consideration paid to obtain those customer contracts. We have also undertaken a comprehensive review of all contracts that fall under the scope of the new standard; and, as of the date of this report, we have substantially completed our review of in-scope Based on analysis performed to date, we expect that adoption of the new standard will result in changes to the classification and timing of our revenue recognition. Specifically, we expect an increase in revenue classified as professional services and other revenue and a reduction in revenue classified as recurring services revenue under the new standard, as compared to current U.S. GAAP. Further, we expect that the new standard will result in changes to the timing of our revenue recognition compared to current U.S. GAAP. In compliance with the new standard, a contractual asset will be reflected on the consolidated balance sheets and will be amortized over the customers’ period of benefit, which is generally three years. We also expect changes to the timing of certain incremental selling, general, and administrative expenses, as the new standard will also require capitalizing and amortizing certain selling expenses, such as commissions and bonuses paid to the sales force. These sales expenses will be amortized over the customer’s period of benefit. In periods of revenue growth, the changes above are expected to result in higher overall earnings before income taxes and net income when compared to current U.S. GAAP. We have not yet determined the impact of the disclosure requirements. The following table presents the anticipated impacts that the adoption of ASC 606 would have for the periods presented: Three Months ended March 31, 2018 As Reported Under ASC 606 Impact Revenue: Recurring services $ 188.7 $ 182.3 $ (6.4 ) Professional services and other 20.2 28.9 8.7 Total revenue $ 208.9 $ 211.2 $ 2.3 Operating profit $ 26.4 $ 30.6 $ 4.2 Three Months ended March 31, 2017 As Reported Under ASC 606 Impact Revenue: Recurring services $ 171.4 $ 165.5 $ (5.9 ) Professional services and other 15.6 22.5 6.9 Total revenue $ 187.0 $ 188.0 $ 1.0 Operating profit $ 12.2 $ 14.6 $ 2.4 In February 2016, the FASB issued ASU No. 2016-02, non-public right-of-use In February 2018 the FASB issued ASU 2018-02,

Summary of Significant Accoun28

Summary of Significant Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2018
Accounting Standards Update 2014-09 [Member]
Impact of Adoption of ASC 606 on Revenue	The following table presents the anticipated impacts that the adoption of ASC 606 would have for the periods presented: Three Months ended March 31, 2018 As Reported Under ASC 606 Impact Revenue: Recurring services $ 188.7 $ 182.3 $ (6.4 ) Professional services and other 20.2 28.9 8.7 Total revenue $ 208.9 $ 211.2 $ 2.3 Operating profit $ 26.4 $ 30.6 $ 4.2 Three Months ended March 31, 2017 As Reported Under ASC 606 Impact Revenue: Recurring services $ 171.4 $ 165.5 $ (5.9 ) Professional services and other 15.6 22.5 6.9 Total revenue $ 187.0 $ 188.0 $ 1.0 Operating profit $ 12.2 $ 14.6 $ 2.4

Discontinued Operations (Tables

Discontinued Operations (Tables)	3 Months Ended
	Mar. 31, 2018
Schedule of Operating Results of Discontinued Operations	The amounts in the table below reflect the operating results and gain on sale of the Divested Benefits Continuation Businesses reported as discontinued operations, as well as supplemental disclosures of the discontinued operations: Three Months 2017 Net revenues $ — Loss from operations before income taxes (0.1 ) Gain on sale of businesses 0.9 Income tax expense (0.3 ) Income from discontinued operations, net of income taxes $ 0.5

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2018
Financial Assets and Liabilities Measured at Fair Value on Recurring Basis	Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis As of March 31, 2018, our financial assets and liabilities measured at fair value on a recurring basis were categorized as follows: Total Level 1 Level 2 Level 3 Assets Available for sale customer trust funds assets $ 2,092.1 $ — $ 2,092.1 (a) $ — Total assets measured at fair value $ 2,092.1 $ — $ 2,092.1 $ — As of December 31, 2017, our financial assets and liabilities measured at fair value on a recurring basis were categorized as follows: Total Level 1 Level 2 Level 3 Assets Available for sale customer trust funds assets $ 1,782.1 $ — $ 1,782.1 (a) $ — Total assets measured at fair value $ 1,782.1 $ — $ 1,782.1 $ — (a) Fair value is based on inputs that are observable for the asset or liability, other than quoted prices.

Customer Trust Funds (Tables)

Customer Trust Funds (Tables)	3 Months Ended
	Mar. 31, 2018
Schedule of Amortized Cost and Fair Values of Investments of Customer Trust Funds Available for Sale	Investments of Customer Trust Funds at March 31, 2018 Amortized Cost Gross Unrealized Fair Value Gain Loss Money market securities, investments carried at cost and other cash equivalents $ 2,191.8 $ 2,191.8 Available for sale investments: U.S. government and agency securities 623.1 — (14.4 ) 608.7 Canadian and provincial government securities 411.9 4.8 (1.9 ) 414.8 Corporate debt securities 781.9 0.5 (4.8 ) 777.6 Asset-backed securities 264.6 0.1 (3.1 ) 261.6 Mortgage-backed securities 12.9 — (0.3 ) 12.6 Other securities 17.0 — (0.2 ) 16.8 Total available for sale investments 2,111.4 5.4 (24.7 ) 2,092.1 Invested customer trust funds 4,303.2 $ 5.4 $ (24.7 ) 4,283.9 Trust receivables 10.0 10.0 Total customer trust funds $ 4,313.2 $ 4,293.9 Investments of Customer Trust Funds at December 31, 2017 Amortized Cost Gross Unrealized Fair Value Gain Loss Money market securities, investments carried at cost and other cash equivalents $ 2,309.3 $ — $ — $ 2,309.3 Available for sale investments: U.S. government and agency securities 584.6 0.1 (7.1 ) 577.6 Canadian and provincial government securities 418.2 6.6 (1.5 ) 423.3 Corporate debt securities 472.3 0.8 (2.5 ) 470.6 Asset-backed securities 280.8 — (1.8 ) 279.0 Mortgage-backed securities 15.0 — (0.2 ) 14.8 Other securities 17.0 — (0.2 ) 16.8 Total available for sale investments 1,787.9 7.5 (13.3 ) 1,782.1 Invested customer trust funds 4,097.2 $ 7.5 $ (13.3 ) 4,091.4 Trust receivables (a) 8.3 8.3 Total customer trust funds $ 4,105.5 $ 4,099.7
Schedule of Unrealized Losses and Fair Value	The following represents the gross unrealized losses and the related fair value of the investments of customer trust funds available for sale, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at March 31, 2018. Less than 12 months 12 months or more Total Unrealized Fair Unrealized Fair Unrealized Fair U.S. government and agency securities $ (9.5 ) $ 493.6 $ (4.9 ) $ 112.0 $ (14.4 ) $ 605.6 Canadian and provincial government securities (1.9 ) 138.1 — — (1.9 ) 138.1 Corporate debt securities (4.0 ) 300.8 (0.8 ) 39.0 (4.8 ) 339.8 Asset-backed securities (2.9 ) 211.9 (0.2 ) 17.8 (3.1 ) 229.7 Mortgage-backed securities (0.1 ) 3.3 (0.2 ) 9.1 (0.3 ) 12.4 Other securities (a) 5.0 (0.2 ) 12.5 (0.2 ) 17.5 Total available for sale investments $ (18.4 ) $ 1,152.7 $ (6.3 ) $ 190.4 $ (24.7 ) $ 1,343.1 (a) These investments have been in an unrealized loss position; however, the amount of unrealized loss is less than $0.05.
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 March 31, 2018, 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. March 31, 2018 Cost Fair Value Due in one year or less $ 2,864.5 $ 2,864.6 Due in one to three years 525.6 522.0 Due in three to five years 544.8 538.0 Due after five years 368.3 359.3 Invested customer trust funds $ 4,303.2 $ 4,283.9

Property, Plant, and Equipment

Property, Plant, and Equipment (Tables)	3 Months Ended
	Mar. 31, 2018
Schedule of Property, Plant, and Equipment	Property, plant, and equipment consist of the following: March 31, December 31, 2018 2017 Land $ 7.5 $ 7.5 Software 212.1 207.2 Machinery and equipment 123.0 122.1 Buildings and improvements 36.8 36.6 Total property, plant, and equipment 379.4 373.4 Accumulated depreciation (276.0 ) (269.6 ) Property, plant, and equipment, net $ 103.4 $ 103.8

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2018
Schedule of Changes in Goodwill	Goodwill and changes therein were as follows for the three months ended March 31, 2018 and the year ended December 31, 2017: HCM LifeWorks Total Balance at December 31, 2016 $ 1,933.1 $ 124.9 $ 2,058.0 Translation 27.9 1.4 29.3 Balance at December 31, 2017 1,961.0 126.3 2,087.3 Translation (11.0 ) (0.5 ) (11.5 ) Balance at March 31, 2018 $ 1,950.0 $ 125.8 $ 2,075.8
Schedule of Other Intangible Assets	Other intangible assets consist of the following as of March 31, 2018: Gross Carrying Accumulated Net Estimated Life Customer lists and relationships $ 246.8 $ (213.2 ) $ 33.6 5-15 Trade name 173.9 (2.0 ) 171.9 — Technology 154.4 (153.3 ) 1.1 2-7 Total other intangible assets $ 575.1 $ (368.5 ) $ 206.6 Other intangible assets consist of the following as of December 31, 2017: Gross Carrying Accumulated Net Estimated Life Customer lists and relationships $ 248.4 $ (209.3 ) $ 39.1 5-15 Trade name 174.0 (2.1 ) 171.9 — Technology 155.6 (154.2 ) 1.4 2-7 Total other intangible assets $ 578.0 $ (365.6 ) $ 212.4

Debt (Tables)

Debt (Tables)	3 Months Ended
	Mar. 31, 2018
Schedule of Debt Obligations	Our debt obligations consisted of the following as of the periods presented: March 31, December 31, 2018 2017 Term Debt, interest rate of 5.4% and 5.1% as of March 31, 2018 and December 31, 2017, respectively $ 657.0 $ 657.3 Senior Notes, interest rate of 11.0% as of March 31, 2018 and December 31, 2017, respectively 475.0 475.0 Revolving Credit Facility ($130.0 available capacity less amounts reserved for letters of credit, which were $8.1 and $8.4 as of March 31, 2018 and December 31, 2017, respectively) — — Total debt 1,132.0 1,132.3 Less unamortized discount on Term Debt 0.7 0.9 Less unamortized debt issuance costs on Senior Notes and Term Debt 10.8 11.6 Less current portion of long-term debt — — Long-term debt, less current portion $ 1,120.5 $ 1,119.8
Schedule of Future Principal Payments and Maturities of Indebtedness	The future principal payments and maturities of our indebtedness are as follows: Years Ending December 31, Amount 2018 $ — 2019 — 2020 657.0 2021 475.0 2022 — Thereafter — $ 1,132.0

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	3 Months Ended
	Mar. 31, 2018
Components of Net Periodic Cost for Defined Benefit Pension Plan and Other Postretirement Benefit Plan	The components of net periodic cost for our defined benefit pension plan and for our postretirement benefit plan are included in the following tables: Three Months ended March 31, 2018 2017 Net Periodic Pension Cost Interest cost $ 4.1 $ 4.3 Expected return on plan assets (6.5 ) (6.6 ) Actuarial loss amortization 3.6 3.2 Net periodic pension cost $ 1.2 $ 0.9 Three Months ended March 31, 2018 2017 Net Periodic Postretirement Benefit Service cost $ (0.1 ) $ (0.1 ) Interest cost 0.1 0.1 Actuarial gain amortization (0.6 ) (0.6 ) Net periodic postretirement benefit gain $ (0.6 ) $ (0.6 )

Share-Based Compensation (Table

Share-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2018
HCM Share Based Compensation Plans [Member]
Summary of Performance Based Stock Options	Performance-based option activity for the period the period is as follows: Shares Weighted (per share) Weighted Aggregate Options outstanding at December 31, 2017 1,035,647 $ 13.46 3.5 $ — Granted — — — — Exercised — — — — Forfeited or expired (5,572 ) (13.46 ) — — Options outstanding at March 31, 2018 1,030,075 $ 13.46 3.2 $ —
Summary of Term-Based Option Activity	Term-based option activity for the period is as follows: Shares Weighted Weighted Aggregate Options outstanding at December 31, 2017 10,991,681 $ 16.52 6.9 $ 48.8 Granted 175,000 20.96 — — Exercised (17,357 ) (19.76 ) — — Forfeited or expired (41,988 ) (17.38 ) — — Options outstanding at March 31, 2018 11,107,336 $ 16.59 6.7 $ 48.5 Options exercisable at March 31, 2018 7,214,169 $ 16.19 5.6 $ 34.4
Summary of Restricted Stock Units	Restricted stock units (“RSUs”) activity for the period is as follows. Shares RSUs outstanding at December 31, 2017 605,990 Granted — Shares issued upon vesting of RSUs (76,190 ) Forfeited or canceled — RSUs outstanding at March 31, 2018 529,800 RSUs releasable at March 31, 2018 125,000
Class C Stock Option [Member] | Joint Venture Share Based Compensation Plans [Member]
Summary of Stock Option Activity	Class C stock option activity for the period is as follows: Shares Weighted Weighted Aggregate Options outstanding at December 31, 2017 1,104,474 $ 2.44 6.9 $ 3.0 Granted 31,416 3.90 — — Exercised — — — — Forfeited or expired (21,590 ) (4.57 ) — — Options outstanding at March 31, 2018 1,114,300 $ 2.44 6.7 $ 3.1 Options exercisable at March 31, 2018 624,820 $ 1.74 6.5 $ 2.2
ClassD Stock Option [Member] | Joint Venture Share Based Compensation Plans [Member]
Summary of Stock Option Activity	Class D stock option activity for the period is as follows: Shares Weighted Weighted Aggregate Options outstanding at December 31, 2017 986,525 $ 8.60 5.8 $ 1.0 Granted 31,414 7.91 — — Exercised — — — — Forfeited or expired (26,200 ) (8.83 ) — — Options outstanding at March 31, 2018 991,739 $ 8.57 5.5 $ 1.1 Options exercisable at March 31, 2018 404,014 $ 8.58 5.5 $ 0.4

Accumulated Other Comprehensi37

Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Mar. 31, 2018
Components of Accumulated Other Comprehensive Income (Loss)	The components of accumulated other comprehensive income (loss) were as follows: Foreign Unrealized Gain Pension Total Balance as of December 31, 2017 $ (160.6 ) $ (9.0 ) $ (142.5 ) $ (312.1 ) Other comprehensive income (loss) before income taxes and reclassifications (15.9 ) (13.4 ) (0.1 ) (29.4 ) Income tax benefit — 0.8 — 0.8 Reclassifications to earnings — — 3.0 3.0 Other comprehensive income (loss) attributable to Ceridian (15.9 ) (12.6 ) 2.9 (25.6 ) Balance as of March 31, 2018 $ (176.5 ) $ (21.6 ) $ (139.6 ) $ (337.7 )

Financial Data by Segment and38

Financial Data by Segment and Geographic Area (Tables)	3 Months Ended
	Mar. 31, 2018
Schedule of Segment Reporting Information by Segment	Three Months ended March 31, 2018 HCM LifeWorks Total Cloud revenue $ 125.2 $ — $ 125.2 Bureau revenue 62.0 — 62.0 LifeWorks revenue — 21.7 21.7 Total revenue 187.2 21.7 208.9 Operating profit (loss) 27.3 (0.9 ) 26.4 Depreciation and amortization 13.9 1.0 14.9 Capital expenditures $ 10.3 $ — $ 10.3 Three Months ended March 31, 2017 HCM LifeWorks Total Cloud revenue $ 90.7 $ — $ 90.7 Bureau revenue 76.7 — 76.7 LifeWorks revenue — 19.6 19.6 Total revenue 167.4 19.6 187.0 Operating profit 10.9 1.3 12.2 Depreciation and amortization 13.1 1.0 14.1 Capital expenditures $ 8.7 $ 0.1 $ 8.8
Schedule of Revenue by Solution	Revenue by solution is as follows: Three Months ended March 31, 2018 2017 Cloud $ 125.2 $ 90.7 Bureau 62.0 76.7 LifeWorks 21.7 19.6 Total revenue $ 208.9 $ 187.0

Net Loss per Share (Tables)

Net Loss per Share (Tables)	3 Months Ended
	Mar. 31, 2018
Schedule of Numerators and Denominators of Basic and Diluted Net Loss per Share Computations	The numerators and denominators of the basic and diluted net loss per share computations are calculated as follows: Three Months ended March 31, 2018 2017 Numerator: Net loss attributable to Ceridian $ (2.1 ) $ (11.2 ) Less: Income from discontinued operations — 0.5 Net loss from continuing operations attributable to Ceridian (2.1 ) (11.7 ) Less: Senior Preferred Stock dividends declared 5.3 4.7 Net loss from continuing operations attributable to Ceridian available to common stockholders $ (7.4 ) $ (16.4 ) Denominator: Weighted-average shares outstanding—basic 65,314,462 65,034,610 Weighted-average shares outstanding—diluted 65,314,462 65,034,610 Net loss per share from continuing operations attributable to Ceridian—basic and diluted $ (0.11 ) $ (0.25 ) Net income per share from discontinued operations—basic and diluted $ — $ 0.01 Net loss per share attributable to Ceridian—basic and diluted $ (0.11 ) $ (0.24 )
Schedule of Potentially Dilutive Shares Excluded from Computation of Diluted Net Loss per Share	The following potentially dilutive shares were excluded from the calculation of diluted net loss per share because their effect would have been anti-dilutive: Three Months ended March 31, 2018 2017 Senior convertible preferred stock 16,802,144 16,802,144 Junior convertible preferred stock 58,244,308 58,244,308 Stock options 12,055,839 10,715,493 Outstanding RSUs 581,440 218,741
Pro Forma [Member]
Schedule of Numerators and Denominators of Basic and Diluted Net Loss per Share Computations	The numerators and denominators of pro forma basic and diluted net loss per share computations are calculated as follows: Three Months 2018 Numerator: Net loss attributable to Ceridian $ (2.1 ) Less: Income from discontinued operations — Net loss from continuing operations attributable to Ceridian $ (2.1 ) Denominator: Weighted-average shares outstanding—basic and diluted 65,314,462 Pro forma adjustment to reflect assumed conversion of senior convertible preferred stock 13,124,574 Pro forma adjustment to reflect assumed conversion of junior convertible preferred stock 29,122,075 Pro forma weighted-average shares outstanding used to computed pro forma net loss per share—basic and diluted 107,561,111 Pro forma net loss per share from continuing operations attributable to Ceridian—basic and diluted $ (0.02 ) Pro forma net income per share from discontinued operations—basic and diluted $ — Pro forma net loss per share attributable to Ceridian—basic and diluted $ (0.02 )

Organization - Additional Infor

Organization - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	Jun. 28, 2017	Mar. 30, 2016	Apr. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Common stock shares issued				65,374,309	65,285,962
Subsequent Event [Member]
Proceed from equity			$ 631.3
Common stock shares issued			24,150,000
IPO [Member] | Subsequent Event [Member]
Shares issued			21,000,000
Shares issued, price per share			$ 22
Private Placement [Member] | Subsequent Event [Member]
Shares issued			4,545,455
Shares issued, price per share			$ 22
Underwriter [Member] | Subsequent Event [Member]
Stock option exercised			3,150,000
Foundation Holding LLC [Member]
Ownership Percentage By Parent				100.00%
Ceridian Holding and Ceridian Holding II [Member] | Sponsors [Member]
Ownership percentage by sponsors				96.00%
Ceridian Holding and Ceridian Holding II [Member] | Other Individuals [Member]
Minority interest ownership percentage by other				4.00%
Ceridian Holding [Member]
Business acquisition date				Nov. 9, 2007
Ceridian Holding II [Member]
Business acquisition date				Mar. 30, 2016
Proceed from equity		$ 150.2
Equity financing contribution	$ 75.2	$ 75

Summary of Significant Accoun41

Summary of Significant Accounting Policies - Additional Information (Detail)	Apr. 10, 2018
Subsequent Event [Member]
Stockholders' Equity, Reverse Stock Split	0.5

Summary of Significant Accoun42

Summary of Significant Accounting Policies - Impact of Adoption of ASC 606 on Revenue (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Recurring services	$ 188.7	$ 171.4
Professional services and other	20.2	15.6
Total revenue	208.9	187
Operating profit	26.4	12.2
Accounting Standards Update 2014-09 [Member]
Recurring services	182.3	165.5
Professional services and other	28.9	22.5
Total revenue	211.2	188
Operating profit	30.6	14.6
Accounting Standards Update 2014-09 [Member] | Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Recurring services	(6.4)	(5.9)
Professional services and other	8.7	6.9
Total revenue	2.3	1
Operating profit	$ 4.2	$ 2.4

Discontinued Operations - Suppl

Discontinued Operations - Supplemental Disclosure of Discontinued Operation (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenues		$ 0
Loss from operations before income taxes		(0.1)
Gain on sale of businesses		0.9
Income tax expense		(0.3)
Income from discontinued operations, net of income taxes	$ 0	$ 0.5

Discontinued Operations - Addit

Discontinued Operations - Additional Information (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2017USD ($)
Proceeds from divesture of business	$ 0.9

Noncontrolling Interest - Addit

Noncontrolling Interest - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Noncontrolling Interest [Line Items]
Net loss attributable to noncontrolling interest	$ (0.5)	$ 0
Distributions up to $250 million [Member] | Common Class A [Member]
Noncontrolling Interest [Line Items]
Distributions rights, percentage	75.00%
Distributions up to $250 million [Member] | Common Class A [Member] | Maximum [Member]
Noncontrolling Interest [Line Items]
Distributions amount rights upon liquidation	$ 250
Distributions between $250 and $500 million [Member] | Common Class A [Member]
Noncontrolling Interest [Line Items]
Distributions rights, percentage	25.00%
Distributions between $250 and $500 million [Member] | Common Class A [Member] | Maximum [Member]
Noncontrolling Interest [Line Items]
Distributions amount rights upon liquidation	$ 500
Distributions between $250 and $500 million [Member] | Common Class A [Member] | Minimum [Member]
Noncontrolling Interest [Line Items]
Distributions amount rights upon liquidation	250
Distribution thereafter [Member]
Noncontrolling Interest [Line Items]
Net loss attributable to noncontrolling interest	$ (0.5)
Distribution thereafter [Member] | Common Class A [Member]
Noncontrolling Interest [Line Items]
Distributions rights, percentage	50.00%

Fair Value Measurements - Asset

Fair Value Measurements - Asset and Liability Measured at Fair Value Measured on Recurring Basis (Detail) - USD ($) $ in Millions		Mar. 31, 2018	Dec. 31, 2017
Assets
Available for sale customer trust funds assets		$ 2,092.1	$ 1,782.1
Total assets measured at fair value		2,092.1	1,782.1
Fair Value, Inputs, Level 2 [Member]
Assets
Available for sale customer trust funds assets	[1]	2,092.1	1,782.1
Total assets measured at fair value		$ 2,092.1	$ 1,782.1
[1]	Fair value is based on inputs that are observable for the asset or liability, other than quoted prices.

Customer Trust Fund - Additiona

Customer Trust Fund - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Investment income from invested customer trust fund included in revenue	$ 17.6	$ 11.4
Maturities ranging from one to 120 days [Member]
Average customer trust funds held in liquidity portfolios, Percentage	45.00%
Maturities ranging from 120 days to10 years [Member]
Average customer trust funds held in fixed income portfolios, Percentage	55.00%

Customer Trust Fund - Investmen

Customer Trust Fund - Investment of Customer Trust Fund (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Schedule of Available-for-sale Securities [Line Items]
Money market securities, investments carried at cost and other cash equivalents, Fair Value	$ 2,191.8	$ 2,309.3
Invested customer trust funds, Fair Value	4,283.9	4,091.4
Trust receivables, Fair Value	10	8.3
Total customer trust funds, Fair Value	4,293.9	4,099.7
Money market securities, investments carried at cost and other cash equivalents, Amortized Cost	2,191.8	2,309.3
Invested customer trust funds, Amortized Cost	4,303.2	4,097.2
Trust receivables, Amortized Cost	10	8.3
Total customer trust funds, Amortized Cost	4,313.2	4,105.5
Amortized Cost	2,111.4	1,787.9
Gross Unrealized Gain	5.4	7.5
Gross Unrealized Loss	(24.7)	(13.3)
Fair value	2,092.1	1,782.1
U.S. Government and Agencies Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	623.1	584.6
Gross Unrealized Gain		0.1
Gross Unrealized Loss	(14.4)	(7.1)
Fair value	608.7	577.6
Canadian and Provincial Government Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	411.9	418.2
Gross Unrealized Gain	4.8	6.6
Gross Unrealized Loss	(1.9)	(1.5)
Fair value	414.8	423.3
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	781.9	472.3
Gross Unrealized Gain	0.5	0.8
Gross Unrealized Loss	(4.8)	(2.5)
Fair value	777.6	470.6
Asset-backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	264.6	280.8
Gross Unrealized Gain	0.1
Gross Unrealized Loss	(3.1)	(1.8)
Fair value	261.6	279
Mortgage-backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	12.9	15
Gross Unrealized Loss	(0.3)	(0.2)
Fair value	12.6	14.8
Other Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	17	17
Gross Unrealized Loss	(0.2)	(0.2)
Fair value	$ 16.8	$ 16.8

Customer Trust Fund - Gross Unr

Customer Trust Fund - Gross Unrealized Losses and Related Fair Value of Investment (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2018USD ($)
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Unrealized Losses	$ 18,400
Less than 12 months, Fair Value	1,152,700
12 months or more, Unrealized Losses	(6,300)
12 months or more, Fair Value	190,400
Total, Unrealized Losses	(24,700)
Total, Fair Value	1,343,100
U.S. Government and Agencies Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Unrealized Losses	9,500
Less than 12 months, Fair Value	493,600
12 months or more, Unrealized Losses	(4,900)
12 months or more, Fair Value	112,000
Total, Unrealized Losses	(14,400)
Total, Fair Value	605,600
Canadian and Provincial Government Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Unrealized Losses	1,900
Less than 12 months, Fair Value	138,100
Total, Unrealized Losses	(1,900)
Total, Fair Value	138,100
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Unrealized Losses	4,000
Less than 12 months, Fair Value	300,800
12 months or more, Unrealized Losses	(800)
12 months or more, Fair Value	39,000
Total, Unrealized Losses	(4,800)
Total, Fair Value	339,800
Asset-backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Unrealized Losses	2,900
Less than 12 months, Fair Value	211,900
12 months or more, Unrealized Losses	(200)
12 months or more, Fair Value	17,800
Total, Unrealized Losses	(3,100)
Total, Fair Value	229,700
Mortgage-backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Unrealized Losses	100
Less than 12 months, Fair Value	3,300
12 months or more, Unrealized Losses	(200)
12 months or more, Fair Value	9,100
Total, Unrealized Losses	(300)
Total, Fair Value	12,400
Other Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Unrealized Losses	50
Less than 12 months, Fair Value	5,000
12 months or more, Unrealized Losses	(200)
12 months or more, Fair Value	12,500
Total, Unrealized Losses	(200)
Total, Fair Value	$ 17,500

Customer Trust Fund - Amortized

Customer Trust Fund - Amortized Cost and Fair Value of Investment Security Available for Sale (Detail) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Schedule of available-for-sale securities and cost-method investments [Line Items]
Due in one year or less, Cost	$ 2,864.5
Due in one to three years, Cost	525.6
Due in three to five years, Cost	544.8
Due after five years, Cost	368.3
Invested customer trust funds, Cost	4,303.2	$ 4,097.2
Due in one year or less, Fair Value	2,864.6
Due in one to three years, Fair Value	522
Due in three to five years, Fair Value	538
Due after five years, Fair Value	359.3
Invested customer trust funds, Fair Value	$ 4,283.9	$ 4,091.4

Property, Plant, and Equipmen51

Property, Plant, and Equipment - Schedule of Property, Plant, and Equipment (Detail) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Land	$ 7.5	$ 7.5
Software	212.1	207.2
Machinery and equipment	123	122.1
Buildings and improvements	36.8	36.6
Total property, plant, and equipment	379.4	373.4
Accumulated depreciation	(276)	(269.6)
Property, plant, and equipment, net	$ 103.4	$ 103.8

Property, Plant, and Equipmen52

Property, Plant, and Equipment - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Depreciation expense	$ 9.4	$ 8.7

Goodwill and Intangible Asset53

Goodwill and Intangible Assets - Schedule of Changes in Goodwill (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Goodwill [Line Items]
Balance	$ 2,087.3	$ 2,058
Translation	(11.5)	29.3
Balance	2,075.8	2,087.3
Operating Segments [Member] | HCM [Member]
Goodwill [Line Items]
Balance	1,961	1,933.1
Translation	(11)	27.9
Balance	1,950	1,961
Operating Segments [Member] | LifeWorks [Member]
Goodwill [Line Items]
Balance	126.3	124.9
Translation	(0.5)	1.4
Balance	$ 125.8	$ 126.3

Goodwill and Intangible Asset54

Goodwill and Intangible Assets - Schedule of Other Intangible Asset (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 575.1	$ 578
Accumulated Amortization	(368.5)	(365.6)
Net	206.6	212.4
Customer Lists and Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	246.8	248.4
Accumulated Amortization	(213.2)	(209.3)
Net	33.6	39.1
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	173.9	174
Accumulated Amortization	(2)	(2.1)
Net	171.9	171.9
Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	154.4	155.6
Accumulated Amortization	(153.3)	(154.2)
Net	$ 1.1	$ 1.4
Minimum [Member] | Customer Lists and Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Life Range (Years)	5 years	5 years
Minimum [Member] | Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Life Range (Years)	2 years	2 years
Maximum [Member] | Customer Lists and Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Life Range (Years)	15 years	15 years
Maximum [Member] | Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Life Range (Years)	7 years	7 years

Goodwill and Intangible Asset55

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Amortization expense	$ 5.5	$ 5.4

Debt - Schedule of Debt Obligat

Debt - Schedule of Debt Obligations (Detail) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Total debt	$ 1,132	$ 1,132.3
Less unamortized discount on Term Debt	0.7	0.9
Less unamortized debt issuance costs on Senior Notes and Term Debt	10.8	11.6
Less current portion of long-term debt	0	0
Long-term debt, less current portion	1,120.5	1,119.8
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Total debt	0
Term Debt [Member]
Debt Instrument [Line Items]
Total debt	657	657.3
Senior Notes [Member]
Debt Instrument [Line Items]
Total debt	$ 475	$ 475

Debt - Schedule of Debt Oblig57

Debt - Schedule of Debt Obligations (Parenthetical) (Detail) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017	Nov. 14, 2014
Term Debt [Member]
Debt Instrument [Line Items]
Interest rate on debt	5.40%	5.10%
Senior Notes [Member]
Debt Instrument [Line Items]
Interest rate on debt	11.00%	11.00%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Available capacity	$ 130		$ 130
Revolving Credit Facility [Member] | Letter of Credit [Member]
Debt Instrument [Line Items]
Available capacity	$ 8.1	$ 8.4

Debt - Additional Information (

Debt - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017	Nov. 14, 2014	Oct. 01, 2013
Debt Instrument [Line Items]
Fair value of our indebtedness	$ 1,150.2	$ 1,154.1
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Available capacity for letters of credit	$ 130		$ 130
Line of credit maturity period	2019-09
Term Debt [Member]
Debt Instrument [Line Items]
Debt instrument principal amount	$ 702		$ 702
Term loan debt maturity period	2020-09
Term debt final mandatory principal pre-payments	$ 0.3
Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument principal amount				$ 475
Senior notes maturity period	2,021

Debt - Schedule of Future Princ

Debt - Schedule of Future Principal Payments and Maturities of Indebtedness (Detail) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
2,018	$ 0
2,019	0
2,020	657
2,021	475
2,022	0
Thereafter	0
Total debt	$ 1,132	$ 1,132.3

Employee Benefit Plans - Compon

Employee Benefit Plans - Components of Net Periodic Cost for Defined Benefit Pension Plan and Other Postretirement Benefit Plan (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net periodic pension cost (postretirement benefit gain)	$ 0.6	$ 0.3
Defined Benefit Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest cost	4.1	4.3
Expected return on plan assets	(6.5)	(6.6)
Actuarial (loss) gain amortization	3.6	3.2
Net periodic pension cost (postretirement benefit gain)	1.2	0.9
Other Postretirement Benefits Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	(0.1)	(0.1)
Interest cost	0.1	0.1
Actuarial (loss) gain amortization	(0.6)	(0.6)
Net periodic pension cost (postretirement benefit gain)	$ (0.6)	$ (0.6)

Share-Based Compensation - Addi

Share-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	Apr. 24, 2018	Mar. 31, 2018	Mar. 31, 2017	Mar. 20, 2017
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense related to unvested performance-based stock options not yet recognized		$ 5,300
Term Based Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense related to unvested performance-based stock options not yet recognized		$ 20,800
Share-based compensation expense related to unvested performance-based stock options expected to be recognized over a weighted average period		1 year 2 months 12 days
Stock options, vested		7,214,169
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense related to unvested performance-based stock options expected to be recognized over a weighted average period		3 years
Stock options, vested		201,190
Shares issued upon vesting of RSUs		76,190
Remaining vested and releasable		125,000
Unvested restricted stock units outstanding		404,800
Share-based compensation expense related to unvested performance-based stock options not yet recognized		$ 6,300
Restricted Stock Units (RSUs) [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting period		3 years
Restricted Stock Units (RSUs) [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting period		4 years
Hcm Stock Incentive Plan 2007 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized		10,540,540
Common shares outstanding		10,000
Hcm Stock Incentive Plan 2013 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized		12,500,000		15,000,000
Shares available for future grants of stock options and stock awards		1,823,963
Share based compensation arrangement by share based payment award exercise period after employment termination		90 days
Stock option awards, contractual term		10 years
Share-based compensation expenses		$ 2,700	$ 4,200
Hcm Stock Incentive Plan 2013 [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting period		4 years
Hcm Stock Incentive Plan 2013 [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting period		5 years
Hcm Stock Incentive Plan 2013 [Member] | Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized		600,000
Common shares outstanding		260,850
Hcm Equity Incentive Plan 2018 [Member] | Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized	13,500,000
Restricted stock vesting period	4 years
Share, Granted	4,673,605
Share, Exercise price	$ 22
Joint Venture Share Based Compensation Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expenses		$ 200	$ 300
Share-based compensation expense related to unvested performance-based stock options expected to be recognized over a weighted average period		1 year 9 months 18 days
Share-based compensation expense related to unvested performance-based stock options not yet recognized		$ 2,400
Joint Venture Share Based Compensation Plans [Member] | Common Class C [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized		3,551,911
Stock options, vested		624,820
Joint Venture Share Based Compensation Plans [Member] | Common Class D [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized		3,551,911
Stock options, vested		404,014

Share-Based Compensation - Summ

Share-Based Compensation - Summary of Performance Based Stock Option (Detail) - Performance Shares [Member] - HCM Share Based Compensation Plans [Member] - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Shares
Options Outstanding at Beginning of Period	1,035,647
Options, Granted	0
Options, Exercised	0
Options, Forfeited or expired	(5,572)
Options Outstanding at End of Period	1,030,075	1,035,647
Weighted Average Exercise Price (per share)
Weighted Average Exercise Price at Beginning of Period	$ 13.46
Weighted Average Exercise Price, Granted	0
Weighted Average Exercise Price, Exercised	0
Weighted Average Exercise Price, Forfeited or expired	(13.46)
Weighted Average Exercise Price at End of Period	$ 13.46	$ 13.46
Weighted Average Remaining Contractual Term (in years)
Weighted Average Remaining Contractual Term (in years)	3 years 2 months 12 days	3 years 6 months
Aggregate intrinsic value
Aggregate Intrinsic Value	$ 0	$ 0

Share-Based Compensation - Su63

Share-Based Compensation - Summary of Term-Based Option Activity (Detail) - Term Based Stock Options [Member] - HCM Share Based Compensation Plans [Member] - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Shares
Options Outstanding at Beginning of Period	10,991,681
Options, Granted	175,000
Options, Exercised	(17,357)
Options, Forfeited or expired	(41,988)
Options Outstanding at End of Period	11,107,336	10,991,681
Options Exercisable at End of Period	7,214,169
Weighted Average Exercise Price (per share)
Weighted Average Exercise Price at Beginning of Period	$ 16.52
Weighted Average Exercise Price, Granted	20.96
Weighted Average Exercise Price, Exercised	(19.76)
Weighted Average Exercise Price, Forfeited or expired	(17.38)
Weighted Average Exercise Price at End of Period	16.59	$ 16.52
Weighted Average Exercise Price exercisable at End of Period	$ 16.19
Weighted Average Remaining Contractual Term (in years)
Weighted Average Remaining Contractual Term (in years)	6 years 8 months 12 days	6 years 10 months 25 days
Weighted Average Remaining Contractual Term Exercisable (in years)	5 years 7 months 6 days
Aggregate intrinsic value
Aggregate Intrinsic Value, options outstanding	$ 48.5	$ 48.8
Aggregate Intrinsic Value exercisable at End of Period	$ 34.4

Share-Based Compensation - Su64

Share-Based Compensation - Summary of Restricted Stock Units (Detail) - Restricted Stock Units (RSUs) [Member]	3 Months Ended
	Mar. 31, 2018shares
Restricted Stock Units
RSUs, Shares issued upon vesting of RSUs	(201,190)
RSUs outstanding at End of Period	404,800
RSUs releasable at March 31, 2018	125,000
HCM Share Based Compensation Plans [Member]
Restricted Stock Units
RSUs outstanding at Beginning of Period	605,990
RSUs, Granted	0
RSUs, Shares issued upon vesting of RSUs	(76,190)
RSUs, Forfeited or canceled	0
RSUs outstanding at End of Period	529,800
RSUs releasable at March 31, 2018	125,000

Share-Based Compensation - Su65

Share-Based Compensation - Summary of Class C Stock Option Activity (Detail) - Class C Stock Option [Member] - Joint Venture Share Based Compensation Plans [Member] - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Shares
Options Outstanding at Beginning of Period	1,104,474
Options, Granted	31,416
Options, Exercised	0
Options, Forfeited or expired	(21,590)
Options Outstanding at End of Period	1,114,300	1,104,474
Options Exercisable at End of Period	624,820
Weighted Average Exercise Price (per share)
Weighted Average Exercise Price at Beginning of Period	$ 2.44
Weighted Average Exercise Price, Granted	3.90
Weighted Average Exercise Price, Exercised	0
Weighted Average Exercise Price, Forfeited or expired	(4.57)
Weighted Average Exercise Price at End of Period	2.44	$ 2.44
Weighted Average Exercise Price exercisable at End of Period	$ 1.74
Weighted Average Remaining Contractual Term (in years)
Weighted Average Remaining Contractual Term (in years)	6 years 8 months 12 days	6 years 10 months 25 days
Weighted Average Remaining Contractual Term Exercisable (in years)	6 years 6 months
Aggregate intrinsic value
Aggregate Intrinsic Value	$ 3.1	$ 3
Aggregate Intrinsic Value exercisable at End of Period	$ 2.2

Share-Based Compensation - Su66

Share-Based Compensation - Summary of Class D Stock Option Activity (Detail) - ClassD Stock Option [Member] - Joint Venture Share Based Compensation Plans [Member] - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Aggregate intrinsic value
Aggregate Intrinsic Value at Beginning of Period	$ 1.1	$ 1
Shares
Options Outstanding at Beginning of Period	986,525
Options, Granted	31,414
Options, Exercised	0
Options, Forfeited or expired	(26,200)
Options Outstanding at End of Period	991,739	986,525
Options Exercisable at End of Period	404,014
Weighted Average Exercise Price (per share)
Weighted Average Exercise Price at Beginning of Period	$ 8.60
Weighted Average Exercise Price, Granted	7.91
Weighted Average Exercise Price, Exercised	0
Weighted Average Exercise Price, Forfeited or expired	(8.83)
Weighted Average Exercise Price at End of Period	8.57	$ 8.60
Weighted Average Exercise Price exercisable at End of Period	$ 8.58
Weighted Average Remaining Contractual Term (in years)
Weighted Average Remaining Contractual Term (in years)	5 years 6 months	5 years 9 months 18 days
Weighted Average Remaining Contractual Term Exercisable (in years)	5 years 6 months
Aggregate Intrinsic Value exercisable at End of Period	$ 0.4

Supplementary Data to Stateme67

Supplementary Data to Statement of Operations - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Other (income) expense, net	$ 2.8	$ (0.9)

Accumulated Other Comprehensi68

Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2018USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ 1,091.2
Other comprehensive income (loss) before income taxes and reclassifications	(29.4)
Income tax benefit	0.8
Reclassifications to earnings	3
Other comprehensive income (loss) attributable to Ceridian	(25.6)
Ending balance	1,066.4
Foreign Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(160.6)
Other comprehensive income (loss) before income taxes and reclassifications	(15.9)
Other comprehensive income (loss) attributable to Ceridian	(15.9)
Ending balance	(176.5)
Unrealized Gain (Loss) from Invested Customer Trust Funds [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(9)
Other comprehensive income (loss) before income taxes and reclassifications	(13.4)
Income tax benefit	0.8
Other comprehensive income (loss) attributable to Ceridian	(12.6)
Ending balance	(21.6)
Pension Liability Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(142.5)
Other comprehensive income (loss) before income taxes and reclassifications	(0.1)
Reclassifications to earnings	3
Other comprehensive income (loss) attributable to Ceridian	2.9
Ending balance	(139.6)
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(312.1)
Ending balance	$ (337.7)

Accumulated Other Comprehensi69

Accumulated Other Comprehensive Income (Loss) - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Foreign Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) attributable to noncontrolling interest	$ (0.2)	$ 0.1

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Effective income tax percentage	21.00%		35.00%
Income tax expense	$ 6.8	$ 2.5
Unrecognized tax benefits	10.5		$ 10.5
Accrued Interest included in unrecognized tax benefits	2.1		$ 2.2
Unrecognized tax benefits if recognized would impact on effective income tax rate	$ 9.9
Income tax examination description	With a 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 2014.

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	Apr. 30, 2018	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Cannae and THLM [Member]
Management fees description		Amount equal to the greater of (a) $0.9, or (b) 0.5 percent of Adjusted EBITDA.
Management fee under condition one		$ 0.9
Management fee percentage of EBITDA under condition two		0.50%
Management fee		$ 0.5	$ 0.5
Cannae and THLM [Member] | Subsequent Event [Member]
Number of years for which present value of the management fee to be paid in case of agreement termination	7 years
Management agreeement termination fee	$ 11.3
FNF [Member]
Senior notes owned		24		$ 24
Interest payments received		0.8	0.8
FNF [Member] | Dayforce [Member]
Revenue from related parties		0.1	0.3
CompuCom Systems, Inc. [Member]
Payment to service provider		0.2	$ 0.5
The Stronach Group [Member] | Dayforce [Member]
Revenue from related parties		$ 0.1

Financial Data by Segment and72

Financial Data by Segment and Geographic Area - Additional Information (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2018USD ($)SegmentExecutive_OfficerEmployeesService	Dec. 31, 2017USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | Segment	2
Number of reportable segments | Segment	2
Number of chief operating decision makers | Executive_Officer	2
Assets	$ 6,879.5	$ 6,729.9
Cloud Revenue [Member]
Segment Reporting Information [Line Items]
Number of cloud offering delivering solution	2
Powerpay [Member] | Maximum [Member]
Segment Reporting Information [Line Items]
Number of employees generating revenue from recurring fees | Employees	20
Bureau Revenue [Member]
Segment Reporting Information [Line Items]
Number of primary service lines delivering solutions | Service	3
HCM [Member]
Segment Reporting Information [Line Items]
Assets	$ 6,723.8	6,573.7
LifeWorks [Member]
Segment Reporting Information [Line Items]
Assets	$ 155.7	$ 156.2

Financial Data by Segment and73

Financial Data by Segment and Geographic Area - Schedule of Segment Reporting Information by Segment (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting Information [Line Items]
Total revenue	$ 208.9	$ 187
Operating profit	26.4	12.2
Depreciation and amortization	14.9	14.1
Capital expenditures	10.3	8.8
Cloud Revenue [Member]
Segment Reporting Information [Line Items]
Total revenue	125.2	90.7
Bureau Revenue [Member]
Segment Reporting Information [Line Items]
Total revenue	62	76.7
LifeWorks Revenue [Member]
Segment Reporting Information [Line Items]
Total revenue	21.7	19.6
HCM [Member]
Segment Reporting Information [Line Items]
Total revenue	187.2	167.4
Operating profit	27.3	10.9
Depreciation and amortization	13.9	13.1
Capital expenditures	10.3	8.7
HCM [Member] | Cloud Revenue [Member]
Segment Reporting Information [Line Items]
Total revenue	125.2	90.7
HCM [Member] | Bureau Revenue [Member]
Segment Reporting Information [Line Items]
Total revenue	62	76.7
LifeWorks [Member]
Segment Reporting Information [Line Items]
Total revenue	21.7	19.6
Operating profit	(0.9)	1.3
Depreciation and amortization	1	1
Capital expenditures		0.1
LifeWorks [Member] | LifeWorks Revenue [Member]
Segment Reporting Information [Line Items]
Total revenue	$ 21.7	$ 19.6

Financial Data by Segment and74

Financial Data by Segment and Geographic Area - Schedule of Revenue by Solutions (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenue	$ 208.9	$ 187
Cloud Revenue [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenue	125.2	90.7
Bureau Revenue [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenue	62	76.7
LifeWorks Revenue [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenue	21.7	19.6
HCM [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenue	187.2	167.4
HCM [Member] | Cloud Revenue [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenue	125.2	90.7
HCM [Member] | Bureau Revenue [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenue	62	76.7
LifeWorks [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenue	21.7	19.6
LifeWorks [Member] | LifeWorks Revenue [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenue	$ 21.7	$ 19.6

Net Loss per Share - Schedule o

Net Loss per Share - Schedule of Numerators and Denominators of Basic and Diluted Net Loss per Share Computations (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Numerator:
Net loss attributable to Ceridian	$ (2.1)	$ (11.2)
Less: Income from discontinued operations	0	0.5
Net loss from continuing operations attributable to Ceridian	(2.1)	(11.7)
Less: Senior Preferred Stock dividends declared	5.3	4.7
Net loss from continuing operations attributable to Ceridian available to common stockholders	$ (7.4)	$ (16.4)
Denominator:
Weighted-average shares outstanding-basic	65,314,462	65,034,610
Weighted-average shares outstanding-diluted	65,314,462	65,034,610
Net loss per share from continuing operations attributable to Ceridian-basic and diluted	$ (0.11)	$ (0.25)
Net income per share from discontinued operations-basic and diluted		0.01
Net loss per share attributable to Ceridian-basic and diluted	$ (0.11)	$ (0.24)

Net Loss per Share - Schedule76

Net Loss per Share - Schedule of Potentially Dilutive Shares Excluded from Computation of Diluted Net Loss per Share (Detail) - shares shares in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Senior Convertible Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	16,802,144	16,802,144
Junior Convertible Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	58,244,308	58,244,308
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	12,055,839	10,715,493
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	581,440	218,741

Pro Forma Net Loss Per Share -

Pro Forma Net Loss Per Share - Schedule of Numerator and Denominator Pro Forma of Basic And Diluted Net Loss Per Share Computation (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Numerator:
Net loss attributable to Ceridian	$ (2.1)	$ (11.2)
Less: Income from discontinued operations	0	0.5
Net loss from continuing operations attributable to Ceridian	$ (2.1)	$ (11.7)
Pro forma net loss per share from continuing operations attributable to Ceridian-basic and diluted	$ (0.11)	$ (0.25)
Denominator:
Pro forma weighted-average shares outstanding used to computed pro forma net loss per share-basic and diluted	65,314,462	65,034,610
Pro forma net income per share from discontinued operations-basic and diluted		$ 0.01
Pro forma net loss per share attributable to Ceridian-basic and diluted	$ (0.11)	$ (0.24)
Pro Forma [Member]
Numerator:
Pro forma net loss per share from continuing operations attributable to Ceridian-basic and diluted	$ (0.02)
Denominator:
Pro forma weighted-average shares outstanding used to computed pro forma net loss per share-basic and diluted	107,561,111
Pro forma net income per share from discontinued operations-basic and diluted	$ 0
Pro forma net loss per share attributable to Ceridian-basic and diluted	$ (0.02)
Convertible Preferred Stock [Member] | Pro Forma [Member]
Denominator:
Pro forma adjustment to reflect assumed conversion of junior convertible preferred stock	13,124,574
Junior Convertible Preferred Stock [Member] | Pro Forma [Member]
Denominator:
Pro forma adjustment to reflect assumed conversion of junior convertible preferred stock	29,122,075

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail)	Apr. 30, 2018USD ($)$ / sharesshares	Apr. 10, 2018	Apr. 30, 2018USD ($)$ / sharesshares	Mar. 31, 2018USD ($)shares	Dec. 31, 2017shares	Nov. 14, 2014USD ($)	Oct. 01, 2013USD ($)
Subsequent Event [Line Items]
Common stock shares issued | shares				65,374,309	65,285,962
Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Available capacity for letters of credit				$ 130,000,000		$ 130,000,000
New Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Line of credit maximum borrowing capacity				300,000,000
Senior Notes [Member]
Subsequent Event [Line Items]
Debt instrument principal amount							$ 475,000,000
Term Debt [Member]
Subsequent Event [Line Items]
Debt instrument principal amount				702,000,000		$ 702,000,000
New Senior Credit Facilities [Member]
Subsequent Event [Line Items]
Debt instrument principal amount				$ 680,000,000
Subsequent Event [Member]
Subsequent Event [Line Items]
Reverse stock split ratio, description		On April 10, 2018, we effected a 1-for-2 reverse stock split of our common stock
Reverse stock split ratio		0.5
Common stock shares issued | shares	24,150,000		24,150,000
Subsequent Event [Member] | Senior Notes [Member]
Subsequent Event [Line Items]
Debt instrument principal amount	$ 475,000,000		$ 475,000,000
Debt instrument, repurchase date	May 30, 2018
Subsequent Event [Member] | IPO [Member]
Subsequent Event [Line Items]
Share issued and sold of common stock | shares			21,000,000
Share issued under IPO, price per share | $ / shares	$ 22		$ 22
Proceeds from issuance of IPO			$ 531,300,000
Subsequent Event [Member] | Underwriter [Member]
Subsequent Event [Line Items]
Stock option exercised | shares			3,150,000
Subsequent Event [Member] | Private Placement [Member]
Subsequent Event [Line Items]
Share issued and sold of common stock | shares			4,545,455
Share issued under IPO, price per share | $ / shares	$ 22		$ 22
Share purchased | shares			4,545,455
Proceeds from issuance			$ 100,000,000