Cushman & Wakefield (CWK) 10-Q 6 Nov 20 2020 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2020	Oct. 31, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2020
Document Transition Report	false
Entity File Number	001-38611
Entity Registrant Name	Cushman & Wakefield plc
Entity Central Index Key	0001628369
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Incorporation, State or Country Code	X0
Entity Tax Identification Number	98-1193584
Entity Address, Address Line One	125 Old Broad Street
Entity Address, City or Town	London
Entity Address, Country	GB
Entity Address, Postal Zip Code	EC2N 1AR
City Area Code	44
Local Phone Number	20 3296 3000
Title of 12(b) Security	Ordinary Shares, $0.10 nominal value
Trading Symbol	CWK
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		221,629,557

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 916.8	$ 813.2
Trade and other receivables, net of allowance balance of $81.5 million and $58.4 million, as of September 30, 2020 and December 31, 2019, respectively	1,210.5	1,524.2
Income tax receivable	35	39
Prepaid expenses	98.1	70.7
Other current assets	449.2	413.7
Total current assets	2,709.6	2,860.8
Property and equipment, net	243.3	299.4
Goodwill	2,059.5	1,969.1
Intangible assets, net	991.8	1,062.6
Equity method investments	108.1	7.9
Deferred tax assets	84.7	86.6
Non-current operating lease assets	444.8	490.7
Other non-current assets	486.6	386.3
Total assets	7,128.4	7,163.4
Current liabilities:
Short-term borrowings and current portion of long-term debt	37.4	39.3
Accounts payable and accrued expenses	1,023.5	1,145.3
Accrued compensation	627.1	888.8
Income tax payable	35.3	59.6
Current operating lease liabilities	112.1	118.6
Other current liabilities	112	71
Total current liabilities	1,947.4	2,322.6
Long-term debt	3,239.5	2,620.3
Deferred tax liabilities	47	110
Long-term tax liabilities	29.4	28.5
Non-current operating lease liabilities	415.4	457.1
Other non-current liabilities	402.8	323.6
Total liabilities	6,081.5	5,862.1
Commitments and contingencies
Shareholders' Equity:
Ordinary shares, nominal value $0.10 per share, 221.8 and 219.5 shares issued and outstanding at September 30, 2020 and at December 31, 2019, respectively	22.2	22
Additional paid-in capital	2,835.1	2,819.1
Accumulated deficit	(1,500.9)	(1,297)
Accumulated other comprehensive loss	(310.3)	(242.8)
Total equity attributable to the Company	1,046.1	1,301.3
Non-controlling interests	0.8	0
Total equity	1,046.9	1,301.3
Total liabilities and shareholders' equity	$ 7,128.4	$ 7,163.4

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Millions, $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Trade and other receivables, allowance	$ 81.5	$ 58.4
Ordinary shares, nominal value per share (in dollars per share)	$ 0.10	$ 0.10
Ordinary shares issued (in shares)	221.8	219.5
Ordinary shares outstanding (in shares)	221.8	219.5

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Statement [Abstract]
Revenue	$ 1,931.6	$ 2,118.8	$ 5,570.6	$ 6,143.5
Costs and expenses:
Cost of services (exclusive of depreciation and amortization)	1,599.6	1,692.2	4,652.3	4,944.1
Operating, administrative and other	254.3	315.2	810.4	908.9
Depreciation and amortization	64.9	75	211.5	222.8
Restructuring, impairment and related charges	13.1	(0.6)	45	3.5
Total costs and expenses	1,931.9	2,081.8	5,719.2	6,079.3
Operating income (loss)	(0.3)	37	(148.6)	64.2
Interest expense, net of interest income	(44.9)	(37.4)	(120.2)	(112.8)
Earnings from equity method investments	2.8	0.7	5.8	2
Other income, net	0.5	0.4	31	3.2
Earnings (loss) before income taxes	(41.9)	0.7	(232)	(43.4)
Benefit from income taxes	(4.6)	(11)	(38.8)	(40.5)
Net income (loss)	$ (37.3)	$ 11.7	$ (193.2)	$ (2.9)
Basic earnings (loss) per share:
Earnings (loss) per share attributable to common shareholders, basic (in dollars per share)	$ (0.17)	$ 0.05	$ (0.88)	$ (0.01)
Weighted average shares outstanding for basic earnings (loss) per share	221.1	218	220.5	217.2
Diluted earnings (loss) per share:
Earnings (loss) per share attributable to common shareholders, diluted (in dollars per share)	$ (0.17)	$ 0.05	$ (0.88)	$ (0.01)
Weighted average shares outstanding for diluted earnings (loss) per share	221.1	224.5	220.5	217.2

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (37.3)	$ 11.7	$ (193.2)	$ (2.9)
Other comprehensive income (loss), net of tax:
Designated hedge gains (losses)	10	(27.7)	(89)	(111)
Defined benefit plan actuarial gain (loss)	(0.1)	0.2	1.9	0.2
Foreign currency translation	41.2	(34.4)	19.6	(32.9)
Total other comprehensive income (loss)	51.1	(61.9)	(67.5)	(143.7)
Total comprehensive income (loss)	$ 13.8	$ (50.2)	$ (260.7)	$ (146.6)

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Equity - USD ($) shares in Millions, $ in Millions	Total	Ordinary Shares	Additional Paid-in Capital	Accumulated Deficit	Unrealized Hedging (Losses) Gains	Foreign Currency Translation	Defined Benefit Plans	Total Accumulated Other Comprehensive Loss, net of tax	Total Equity Attributable to the Company	Non-Controlling Interests	Cumulative Effect, Period of Adoption, AdjustmentAdditional Paid-in Capital	Cumulative Effect, Period of Adoption, AdjustmentAccumulated Deficit	Cumulative Effect, Period of Adoption, Adjusted Balance	Cumulative Effect, Period of Adoption, Adjusted BalanceTotal Equity Attributable to the Company
Beginning balance (in shares) at Dec. 31, 2018		216.6
Beginning balance at Dec. 31, 2018	$ 1,360.1	$ 21.7	$ 2,791.2	$ (1,298.4)	$ 13.9	$ (163.4)	$ (4.9)	$ (154.4)
Beginning balance (Accounting Standards Update 2018-07) at Dec. 31, 2018											$ (1.2)	$ 1.2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(2.9)			(2.9)
Stock-based compensation	46.3		46.3
Vesting of shares related to equity compensation plans, net amounts withheld for payment of taxes (in shares)		2.4
Vesting of shares related to equity compensation plans, net amounts withheld for payment of taxes	(25.2)	$ 0.2	(25.4)
Share repurchase	(0.4)		(0.4)
Foreign currency translation	(32.9)					(32.9)		(32.9)
Defined benefit plans actuarial gain (loss)	0.2						0.2	0.2
Unrealized (loss) gain on hedging instruments	(105.9)				(105.9)			(105.9)
Amounts reclassified from AOCI to the statement of operations	(5.1)				(5.1)			(5.1)
Ending balance (in shares) at Sep. 30, 2019		219
Ending balance at Sep. 30, 2019	1,234.2	$ 21.9	2,810.5	(1,300.1)	(97.1)	(196.3)	(4.7)	(298.1)
Beginning balance (in shares) at Jun. 30, 2019		217
Beginning balance at Jun. 30, 2019	1,288	$ 21.7	2,814.3	(1,311.8)	(69.4)	(161.9)	(4.9)	(236.2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	11.7			11.7
Stock-based compensation	16.2		16.2
Vesting of shares related to equity compensation plans, net amounts withheld for payment of taxes (in shares)		2
Vesting of shares related to equity compensation plans, net amounts withheld for payment of taxes	(19.4)	$ 0.2	(19.6)
Share repurchase	(0.4)		(0.4)
Foreign currency translation	(34.4)					(34.4)		(34.4)
Defined benefit plans actuarial gain (loss)	0.2						0.2	0.2
Unrealized (loss) gain on hedging instruments	(26.6)				(26.6)			(26.6)
Amounts reclassified from AOCI to the statement of operations	(1.1)				(1.1)			(1.1)
Ending balance (in shares) at Sep. 30, 2019		219
Ending balance at Sep. 30, 2019	1,234.2	$ 21.9	2,810.5	(1,300.1)	(97.1)	(196.3)	(4.7)	(298.1)
Beginning balance (in shares) at Dec. 31, 2019		219.5
Beginning balance at Dec. 31, 2019	1,301.3
Beginning balance of total equity at Dec. 31, 2019	1,301.3	$ 22	2,819.1	(1,297)	(78.4)	(158.4)	(6)	(242.8)	$ 1,301.3	$ 0			$ (10.7)	$ (10.7)
Beginning balance of total equity (Accounting Standards Update 2016-13) at Dec. 31, 2019												$ (10.7)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(193.2)			(193.2)					(193.2)
Acquisition of non-controlling interests	0.8									0.8
Stock-based compensation	34.3		34.3						34.3
Vesting of shares related to equity compensation plans, net amounts withheld for payment of taxes (in shares)		2.3
Vesting of shares related to equity compensation plans, net amounts withheld for payment of taxes	(18.1)	$ 0.2	(18.3)						(18.1)
Foreign currency translation	19.6					19.6		19.6	19.6
Defined benefit plans actuarial gain (loss)	1.9						1.9	1.9	1.9
Unrealized (loss) gain on hedging instruments	(78)				(78)			(78)	(78)
Amounts reclassified from AOCI to the statement of operations	(11)				(11)			(11)	(11)
Ending balance (in shares) at Sep. 30, 2020		221.8
Ending balance at Sep. 30, 2020	1,046.1
Ending balance of total equity at Sep. 30, 2020	1,046.9	$ 22.2	2,835.1	(1,500.9)	(167.4)	(138.8)	(4.1)	(310.3)	1,046.1	0.8
Beginning balance (in shares) at Jun. 30, 2020		220.8
Beginning balance of total equity at Jun. 30, 2020	1,029.8	$ 22.1	2,832.3	(1,463.6)	(177.4)	(180)	(4)	(361.4)	1,029.4	0.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(37.3)			(37.3)					(37.3)
Acquisition of non-controlling interests	0.4									0.4
Stock-based compensation	9.8		9.8						9.8
Vesting of shares related to equity compensation plans, net amounts withheld for payment of taxes (in shares)		1
Vesting of shares related to equity compensation plans, net amounts withheld for payment of taxes	(6.9)	$ 0.1	(7)						(6.9)
Foreign currency translation	41.2					41.2		41.2	41.2
Defined benefit plans actuarial gain (loss)	(0.1)						(0.1)	(0.1)	(0.1)
Unrealized (loss) gain on hedging instruments	19.3				19.3			19.3	19.3
Amounts reclassified from AOCI to the statement of operations	(9.3)				(9.3)			(9.3)	(9.3)
Ending balance (in shares) at Sep. 30, 2020		221.8
Ending balance at Sep. 30, 2020	1,046.1
Ending balance of total equity at Sep. 30, 2020	$ 1,046.9	$ 22.2	$ 2,835.1	$ (1,500.9)	$ (167.4)	$ (138.8)	$ (4.1)	$ (310.3)	$ 1,046.1	$ 0.8

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities
Net income (loss)	$ (193.2)	$ (2.9)
Reconciliation of net loss to net cash used in operating activities:
Depreciation and amortization	211.5	222.8
Impairment charges	3.2	3.9
Unrealized foreign exchange (gain) loss	(5.4)	1.5
Stock-based compensation	34.3	46.2
Lease amortization	85	84.9
Amortization of debt issuance costs	7.4	3.5
Change in deferred taxes	(62.2)	(140.5)
Bad debt expense	26.5	18.2
Other non-cash operating activities	(43.9)	(17.9)
Changes in assets and liabilities:
Trade and other receivables	270.6	121.2
Income taxes payable	(23)	41.3
Prepaid expenses and other current assets	(34.3)	(152.4)
Other non-current assets	13	37.2
Accounts payable and accrued expenses	(147)	(107)
Accrued compensation	(299.3)	(148.9)
Other current and non-current liabilities	(65.7)	(111.7)
Net cash used in operating activities	(222.5)	(100.6)
Cash flows from investing activities
Payment for property and equipment	(26.9)	(47.4)
Acquisitions of businesses, net of cash acquired	(102.5)	(268.5)
Return of beneficial interest in a securitization	(85)	0
Investments in equity securities	(13.9)	(3.9)
Other investing activities, net	(8.5)	0.4
Net cash used in investing activities	(236.8)	(319.4)
Cash flows from financing activities
Net proceeds from issuance of shares	0	0.1
Shares repurchased for payment of employee taxes on stock awards	(18.8)	(25.2)
Payment of contingent consideration	(5.5)	(16.4)
Proceeds from senior secured notes	650	0
Repayment of borrowings	(13.3)	(20.3)
Debt issuance costs	(22.7)	0
Payment of finance lease liabilities	(9.9)	(9.2)
Other financing activities, net	1.7	0.1
Net cash provided by (used in) financing activities	581.5	(70.9)
Change in cash, cash equivalents and restricted cash	122.2	(490.9)
Cash, cash equivalents and restricted cash, beginning of the period	872.3	965.4
Effects of exchange rate fluctuations on cash, cash equivalents and restricted cash	0.6	(5)
Cash, cash equivalents and restricted cash, end of the period	$ 995.1	$ 469.5

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Note 1: Basis of Presentation The accompanying unaudited Condensed Consolidated Financial Statements have been prepared under accounting principles generally accepted in the United States ("U.S. GAAP" or "GAAP") and in conformity with rules applicable to quarterly financial information. The Condensed Consolidated Financial Statements as of September 30, 2020 and for the three and nine months ended September 30, 2020 and 2019 are unaudited. All adjustments, consisting of normal recurring adjustments, except as otherwise noted, considered necessary for a fair presentation of the unaudited interim Condensed Consolidated Financial Statements for these interim periods have been included. Readers of this unaudited interim Condensed Consolidated quarterly financial information should refer to the audited Consolidated Financial Statements and notes thereto of Cushman & Wakefield plc and its subsidiaries (“Cushman & Wakefield,” the "Company,” “we,” “our” and “us”) for the year ended December 31, 2019 included in our 2019 Annual Report on Form 10-K filed with the Securities and Exchange Commission (the "SEC") and also available on our website (www.cushmanwakefield.com). Certain footnote disclosures that would substantially duplicate those contained in such audited financial statements or which are not required by the rules and regulations of the SEC for interim financial reporting have been condensed or omitted. Refer to Note 2: Summary of Significant Accounting Policies of the Notes to Consolidated Financial Statements in the Company's 2019 Annual Report on form 10-K for further discussion of the Company's accounting policies and estimates. Due to seasonality, the results of operations for the three and nine months ended September 30, 2020 are not necessarily indicative of the results of operations to be expected for the year ending December 31, 2020.

New Accounting Standards

New Accounting Standards	9 Months Ended
	Sep. 30, 2020
Accounting Policies [Abstract]
New Accounting Standards	Note 2: New Accounting Standards The Company has adopted the following new accounting standards: Current Expected Credit Loss (CECL) In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments – Credit Losses (together with all subsequent amendments, (Topic 326)), which replaces the current U.S. GAAP that requires an incurred loss methodology for recognizing credit losses and delays recognition until it is probable a loss has been incurred. Topic 326 replaces the incurred loss methodology with a methodology that reflects expected credit losses and requires consideration of reasonable and supportable information to estimate credit losses. Trade and other receivables are presented on the consolidated balance sheets net of estimated expected credit losses. Upon initial recognition of a receivable, the Company estimates credit losses over the contractual term of the receivable and establishes an allowance based on historical experience, current available information and expectations of future economic conditions. The Company mitigates credit loss risk from its trade receivables by assessing customers for creditworthiness, including review of credit ratings, financial position, and historical experience with similar customers within similar geographic regions, where available. Credit risk is limited due to ongoing monitoring, high geographic customer distribution and low concentration of risk. As the risk of loss is determined to be similar based on the credit risk factors, the Company aggregates its trade receivables on a collective basis when assessing estimated credit losses. The Company adopted Topic 326 on January 1, 2020 in accordance with the modified retrospective approach, which resulted in an immaterial cumulative-effect adjustment to the opening balance of Accumulated deficit. Leases In February 2016, the FASB issued ASU No. 2016-02, Leases (together with all subsequent amendments, Topic 842), which replaced most existing lease guidance under U.S. GAAP when it became effective on January 1, 2019. The new guidance requires a lessee to record a Non-current operating lease asset and a corresponding lease liability on the balance sheet for all leases with terms longer than 12 months. The Company elected to use the optional transition method upon adoption and did not revise comparative financial statements or disclosures. Adoption of Topic 842 did not have an impact on the opening balance of Accumulated deficit as of January 1, 2019. Stock Compensation In June 2018, the FASB issued ASU No. 2018-07, Compensation - Stock Compensation: Improvements to Nonemployee Share-Based Payment Accounting (Topic 718). The ASU supersedes ASC 505-50, Equity-Based Payments to Non-Employees and expands the scope of Topic 718 to include stock-based payments granted to non-employees. Under the new guidance, the measurement date and performance and vesting conditions for stock-based payments to non-employees are aligned with those of employees, most notably aligning the award measurement date with the grant date of an award. The new guidance is required to be adopted using the modified retrospective transition approach. The Company adopted the new guidance effective January 1, 2019, with an immaterial impact on its financial statements and related disclosures. Derivatives and Hedging In August 2017, the FASB issued ASU No. 2017-12, Targeted Improvements to Accounting for Hedging Activities (Topic 815). The new guidance eliminates the requirement to separately measure and report hedge ineffectiveness and is intended to reduce the complexity of applying hedge accounting by simplifying the designation and measurement of hedging instruments. The ASU is required to be applied retrospectively to eliminate the separate measurement of ineffectiveness through a cumulative-effect adjustment to Accumulated other comprehensive income with a corresponding adjustment to the opening balance of retained earnings. The new guidance is required to be adopted using the retrospective approach. The Company adopted the new guidance effective January 1, 2019 with an immaterial impact on its financial statements and related disclosures. In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. This ASU provides temporary optional practical expedients for reference rate reform related activities that impact debt, leases, derivatives and other contracts and is effective through December 31, 2022. In the second quarter of 2020, the Company elected to apply the hedge accounting expedients related to probability of forecasted transactions and the assessments of effectiveness for future LIBOR-indexed cash flows to assume that the index upon which future hedged transactions will be based matches the index on the corresponding derivatives. The application of these expedients preserves the presentation of the derivatives with no impact to the financial statements and related disclosures. Income Taxes In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. The new guidance removes certain exceptions related to the approach for intraperiod tax allocation, the methodology for calculating income in an interim period, and the recognition of deferred tax liabilities for outside basis differences. The new guidance is effective for public companies for annual reporting periods and interim periods within those annual periods beginning after December 15, 2020. The Company adopted the new guidance effective July 1, 2020, with an immaterial impact to its financial statements and related disclosures.

Segment Data

Segment Data	9 Months Ended
	Sep. 30, 2020
Segment Reporting [Abstract]
Segment Data	Note 3: Segment Data The Company reports its operations through the following segments: (1) Americas, (2) EMEA and (3) APAC. The Americas consists of operations located in the United States, Canada and key markets in Latin America. EMEA includes operations in the U.K., France, Netherlands and other markets in Europe and the Middle East. APAC includes operations in Australia, Singapore, China and other markets in the Asia Pacific region. Adjusted EBITDA is the profitability metric reported to the chief operating decision maker (“CODM”) for purposes of making decisions about allocation of resources to each segment and assessing performance of each segment. The Company believes that investors find this measure useful in comparing our operating performance to that of other companies in our industry because this measure generally illustrates the underlying performance of the business before integration and other costs related to mergers, pre-IPO stock-based compensation, acquisition related costs and efficiency initiatives, and other items. Adjusted EBITDA also excludes the effects of financings, income tax and the non-cash accounting effects of depreciation and intangible asset amortization. As segment assets are not reported to or used by the CODM to measure business performance or allocate resources, total segment assets and capital expenditures are not presented below. Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 % Change 2020 2019 % Change Total revenue Americas $ 1,416.1 $ 1,512.8 (6) % $ 4,059.4 $ 4,353.3 (7) % EMEA 223.2 235.5 (5) % 638.3 667.0 (4) % APAC 292.3 370.5 (21) % 872.9 1,123.2 (22) % Total revenue $ 1,931.6 $ 2,118.8 (9) % $ 5,570.6 $ 6,143.5 (9) % Adjusted EBITDA Americas $ 81.2 $ 125.2 (35) % $ 199.1 $ 318.0 (37) % EMEA 11.5 20.3 (43) % 34.2 35.5 (4) % APAC 24.4 23.0 6 % 72.9 77.9 (6) % Adjusted EBITDA is calculated as follows (in millions): Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 Adjusted EBITDA - Americas $ 81.2 $ 125.2 $ 199.1 $ 318.0 Adjusted EBITDA - EMEA 11.5 20.3 34.2 35.5 Adjusted EBITDA - APAC 24.4 23.0 72.9 77.9 Add/(less): Depreciation and amortization (64.9) (75.0) (211.5) (222.8) Interest expense, net of interest income (44.9) (37.4) (120.2) (112.8) Benefit from income taxes 4.6 11.0 38.8 40.5 Integration and other costs related to merger (12.8) (29.9) (47.6) (74.1) Pre-IPO stock-based compensation (4.5) (11.4) (16.7) (33.6) Acquisition related costs and efficiency initiatives (28.3) (8.0) (114.7) (17.7) Other (3.6) (6.1) (27.5) (13.8) Net income (loss) $ (37.3) $ 11.7 $ (193.2) $ (2.9)

Earnings Per Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2020
Earnings Per Share [Abstract]
Earnings Per Share	Note 4: Earnings Per Share Earnings (Loss) per Share ("EPS") is calculated by dividing the Net earnings or loss attributable to shareholders by the Weighted average shares outstanding. As the Company was in a loss position for the three months ended September 30, 2020 and nine months ended September 30, 2020 and 2019, the Company has determined all potentially dilutive shares would be anti-dilutive in these periods and therefore are excluded from the calculation of diluted weighted average shares outstanding. As a result, the calculation of weighted average shares outstanding is the same for basic and diluted EPS for these periods. Potentially dilutive securities of approximately 0.6 million for the three months ended September 30, 2020 and 1.9 million and 7.2 million for the nine months ended September 30, 2020 and 2019, respectively, were excluded from the computation of diluted EPS because their effect would have been anti-dilutive in these periods. The following is a calculation of EPS (in millions, except per share amounts): Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 Basic EPS Net income (loss) attributable to shareholders $ (37.3) $ 11.7 $ (193.2) $ (2.9) Weighted average shares outstanding for basic earnings (loss) per share 221.1 218.0 220.5 217.2 Basic earnings (loss) per common share attributable to shareholders $ (0.17) $ 0.05 $ (0.88) $ (0.01) Diluted EPS Net income (loss) attributable to shareholders $ (37.3) $ 11.7 $ (193.2) $ (2.9) Weighted average shares outstanding for basic earnings (loss) per share 221.1 218.0 220.5 217.2 Dilutive effect of restricted stock units — 5.0 — — Dilutive effective of stock options — 1.5 — — Weighted average shares outstanding for diluted earnings (loss) per share 221.1 224.5 220.5 217.2 Diluted earnings (loss) per common share attributable to shareholders $ (0.17) $ 0.05 $ (0.88) $ (0.01)

Revenue

Revenue	9 Months Ended
	Sep. 30, 2020
Revenue from Contract with Customer [Abstract]
Revenue	Note 5: Revenue Revenue is recognized upon transfer of control of promised services to clients in an amount that reflects the consideration the Company expects to receive in exchange for those services. The Company enters into contracts and earns revenue from its Property, facilities and project management, Leasing, Capital markets and Valuation and other service lines. Revenue is recognized net of any taxes collected from customers. A performance obligation is a promise in a contract to transfer a distinct service to the client and is the unit of account. A contract’s transaction price is allocated to each distinct performance obligation and recognized as revenue when, or as, the performance obligation is satisfied. The Company allocates the contract’s transaction price to each performance obligation using the best estimate of the standalone selling price of each distinct service in the contract. Contract Balances The Company receives payments from customers based upon contractual billing schedules; accounts receivable are recorded when the right to consideration becomes unconditional. Contract assets include amounts related to the contractual right to consideration for completed performance not yet invoiced or able to be invoiced. As stated in Note 2, the Company adopted Topic 326 on January 1, 2020. Topic 326 replaces the impairment assessment requirement for contract assets with a methodology that reflects expected credit losses. As a result of adopting Topic 326, the Company records contract assets net of expected credit losses which are estimated based on historical experience, current available information and expectations of future economic conditions. The contract asset allowance is recorded in Operating, administrative, and other in the consolidated statement of operations. Contract liabilities are recorded when cash payments are received in advance of performance, including amounts which are refundable. The majority of contract liabilities are recognized as revenue within 90 days. The Company had no material asset impairment charges related to contract assets in the periods presented. As of September 30, 2020 and December 31, 2019, the Company had contract assets of $323.8 million and $313.4 million and $23.8 million and $26.7 million, which were recorded in Other current assets and Other non-current assets, respectively, in the unaudited Condensed Consolidated Balance Sheets. As of September 30, 2020 and December 31, 2019, the Company had contract liabilities of $49.3 million and $54.4 million which were recorded in Accounts payable and accrued expenses in the unaudited Condensed Consolidated Balance Sheets. Disaggregation of Revenue The following tables disaggregate revenue by reportable segment and service line (in millions): Three Months Ended September 30, 2020 Revenue recognition timing Americas EMEA APAC Total Property, facilities and project management Over time $ 1,007.7 $ 117.1 $ 222.3 $ 1,347.1 Leasing At a point in time 245.6 44.0 33.9 323.5 Capital markets At a point in time 124.2 24.0 7.7 155.9 Valuation and other At a point in time or over time 38.6 38.1 28.4 105.1 Total revenue $ 1,416.1 $ 223.2 $ 292.3 $ 1,931.6 Three Months Ended September 30, 2019 Revenue recognition timing Americas EMEA APAC Total Property, facilities and project management Over time $ 906.1 $ 96.6 $ 283.4 $ 1,286.1 Leasing At a point in time 375.6 56.0 42.6 474.2 Capital markets At a point in time 182.8 41.7 14.8 239.3 Valuation and other At a point in time or over time 48.3 41.2 29.7 119.2 Total revenue $ 1,512.8 $ 235.5 $ 370.5 $ 2,118.8 Nine Months Ended September 30, 2020 Revenue recognition timing Americas EMEA APAC Total Property, facilities and project management Over time $ 2,919.8 $ 326.2 $ 664.9 $ 3,910.9 Leasing At a point in time 681.1 126.3 89.0 896.4 Capital markets At a point in time 347.4 69.6 35.0 452.0 Valuation and other At a point in time or over time 111.1 116.2 84.0 311.3 Total revenue $ 4,059.4 $ 638.3 $ 872.9 $ 5,570.6 Nine Months Ended September 30, 2019 Revenue recognition timing Americas EMEA APAC Total Property, facilities and project management Over time $ 2,667.9 $ 280.3 $ 851.6 $ 3,799.8 Leasing At a point in time 1,064.7 161.9 115.1 1,341.7 Capital markets At a point in time 494.8 101.3 71.8 667.9 Valuation and other At a point in time or over time 125.9 123.5 84.7 334.1 Total revenue $ 4,353.3 $ 667.0 $ 1,123.2 $ 6,143.5 Exemptions Remaining performance obligations represent the aggregate transaction prices for contracts where the performance obligations have not yet been satisfied. In accordance with Topic 606, the Company does not disclose unsatisfied performance obligations for (i) contracts with an original expected length of one year or less and (ii) variable consideration for services performed as a series of daily performance obligations, such as those performed within the Property, facilities and project management services lines. Performance obligations within these businesses represent a significant portion of the Company's contracts with customers not expected to be completed within 12 months.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	9 Months Ended
	Sep. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Note 6: Goodwill and Other Intangible Assets The following table summarizes the changes in the carrying amount of goodwill for the nine months ended September 30, 2020 (in millions): Americas EMEA APAC Total Balance as of December 31, 2019 $ 1,417.1 $ 282.2 $ 269.8 $ 1,969.1 Acquisitions 83.4 26.5 — 109.9 Disposals — — (25.2) (25.2) Measurement period adjustments (0.4) 0.4 — — Effect of movements in exchange rates and other (1.5) 2.2 5.0 5.7 Balance as of September 30, 2020 $ 1,498.6 $ 311.3 $ 249.6 $ 2,059.5 Portions of goodwill are denominated in currencies other than the U.S. dollar, therefore a portion of the movements in the reported book value of these balances is attributable to movements in foreign currency exchange rates. There was no impairment of goodwill and other intangible assets for the three and nine months ended September 30, 2020 and 2019, respectively. The following tables summarize the carrying amounts and accumulated amortization of intangible assets (in millions): As of September 30, 2020 Useful Life (in years) Gross Value Accumulated Amortization Net Value C&W trade name Indefinite $ 546.0 $ — $ 546.0 Customer relationships 1 - 15 1,356.9 (919.8) 437.1 Other intangible assets 2 - 13 17.1 (8.4) 8.7 Total intangible assets $ 1,920.0 $ (928.2) $ 991.8 As of December 31, 2019 Useful Life (in years) Gross Value Accumulated Amortization Net Value C&W trade name Indefinite $ 546.0 $ — $ 546.0 Customer relationships 1 - 15 1,333.1 (827.5) 505.6 Other intangible assets 2 - 13 17.2 (6.2) 11.0 Total intangible assets $ 1,896.3 $ (833.7) $ 1,062.6

Derivative Financial Instrument

Derivative Financial Instruments and Hedging Activities	9 Months Ended
	Sep. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments and Hedging Activities	Note 7: Derivative Financial Instruments and Hedging Activities The Company is exposed to certain risks arising from both business operations and economic conditions, including interest rate risk and foreign exchange risk. To mitigate the impact of interest rate and foreign exchange risk, the Company enters into derivative financial instruments. The Company maintains the majority of its overall interest rate exposure on floating rate borrowings to a fixed-rate basis, primarily with interest rate swap agreements. The Company manages exposure to foreign exchange fluctuations primarily through short-term forward contracts. There have been no significant changes to the interest rate and foreign exchange risk management objectives from those disclosed in the Company’s audited Consolidated Financial Statements for the year ended December 31, 2019. Interest Rate Derivative Instruments As of September 30, 2020, the Company's active interest rate hedging instruments consist of five interest rate swap agreements designated as cash flow hedges. The Company's hedge instrument balances as of September 30, 2020 relate solely to these interest rate swaps. The hedge instruments expire in August 2025 and are further described below. The Company records changes in the fair value of derivatives designated and qualifying as cash flow hedges in Accumulated other comprehensive loss in the unaudited Condensed Consolidated Balance Sheets and subsequently reclassifies the change into earnings in the period that the hedged forecasted transaction affects earnings. As of September 30, 2020 and December 31, 2019, there is $165.5 million and $74.5 million in pre-tax losses, respectively, included in Accumulated other comprehensive loss related to these agreements, which will be reclassified to Interest expense as interest payments are made in accordance with the Company's 2018 Credit Agreement; refer to Note 8: Long-term Debt and Other Borrowings for discussion of this agreement. During the next twelve months, the Company estimates that pre-tax losses of $37.4 million will be reclassified to Interest expense in the unaudited Condensed Consolidated Statements of Operations. Non-designated Foreign Exchange Derivative Instruments Additionally, the Company enters into short-term forward contracts to mitigate the risk of fluctuations in foreign currency exchange rates that would adversely impact some of the Company’s foreign currency denominated transactions. Hedge accounting was not elected for any of these contracts. As such, changes in the fair value of these contracts are recorded directly in earnings. There are gains of $2.1 million and $1.6 million for the three months ended September 30, 2020 and 2019, respectively. There are gains of $2.3 million and $1.5 million for the nine months ended September 30, 2020 and 2019, respectively. This activity was included in Other income, net, in the unaudited Condensed Consolidated Statements of Operations. As of September 30, 2020 and December 31, 2019, the Company had 21 and 23 foreign currency exchange forward contracts outstanding, respectively, covering a notional amount of $538.8 million and $498.2 million, respectively. The fair value of forward contracts disclosed above are included in Other current assets and Other current liabilities in the unaudited Condensed Consolidated Balance Sheets as of September 30, 2020 and December 31, 2019. As of September 30, 2020 and December 31, 2019, the Company has not posted and does not hold any collateral related to these agreements. The following table presents the fair value of derivatives as of September 30, 2020 and December 31, 2019 (in millions): September 30, 2020 December 31, 2019 September 30, 2020 Assets Liabilities Assets Liabilities Derivative Instrument Notional Fair Value Fair Value Fair Value Fair Value Designated: Cash flow hedges: Interest rate swaps $ 2,050.0 $ — $ 176.3 $ — $ 97.7 Non-designated: Foreign currency forward contracts 538.8 3.1 2.1 1.0 2.2 The fair value of derivative assets is included within Other non-current assets and the fair value of derivative liabilities is included within Other non-current liabilities in the unaudited Condensed Consolidated Balance Sheets. The Company does not net derivatives in the unaudited Condensed Consolidated Balance Sheets. The following table presents the effect of derivatives designated as hedges, net of applicable income taxes, in the unaudited Condensed Consolidated Statements of Operations for the three months ended September 30, 2020 and 2019 (in millions): Beginning Amount of Loss (1) Amount of (Loss) Gain (2) Ending Three Months Ended September 30, 2020 Interest rate cash flow hedges $ 178.0 $ (19.3) $ 9.3 $ 168.0 $ 178.0 $ (19.3) $ 9.3 $ 168.0 Three Months Ended September 30, 2019 Interest rate cash flow hedges $ 70.0 $ 26.6 $ 1.1 $ 97.7 $ 70.0 $ 26.6 $ 1.1 $ 97.7 (1) Amount is net of related income tax expense of $0.0 million for the three months ended September 30, 2020 and 2019. (2) Amount is net of related income tax expense of $0.7 million and $0.8 million for the three months ended September 30, 2020 and 2019, respectively. Gains of $10.0 million and $1.9 million were reclassified into earnings during the three months ended September 30, 2020 and 2019, respectively, related to interest rate hedges and were recognized in Interest expense in the unaudited Condensed Consolidated Statements of Operations. The following table presents the effect of derivatives designated as hedges, net of applicable income taxes, in the unaudited Condensed Consolidated Statements of Operations for the nine months ended September 30, 2020 and 2019 (in millions): Beginning Amount of Loss (1) Amount of (Loss) Gain (2) Ending Nine Months Ended September 30, 2020 Interest rate cash flow hedges $ 79.0 $ 78.0 $ 11.0 $ 168.0 $ 79.0 $ 78.0 1 $ 11.0 2 $ 168.0 Nine Months Ended September 30, 2019 Interest rate cash flow hedges $ (13.3) $ 105.9 $ 5.1 $ 97.7 $ (13.3) $ 105.9 1 $ 5.1 2 $ 97.7 (1) Amount is net of related income tax expense of $0.0 million and $5.1 million for the nine months ended September 30, 2020 and 2019, respectively. (2) Amount is net of related income tax expense of $2.1 million and $2.3 million for the nine months ended September 30, 2020 and 2019, respectively. Gains of $13.1 million and $7.4 million were reclassified into earnings during the nine months ended September 30, 2020 and 2019, respectively, related to interest rate hedges and were recognized in Interest expense in the unaudited Condensed Consolidated Statements of Operations.

Long-term Debt and Other Borrow

Long-term Debt and Other Borrowings	9 Months Ended
	Sep. 30, 2020
Debt Disclosure [Abstract]
Long-term Debt and Other Borrowings	Note 8: Long-term Debt and Other Borrowings Long-term debt consisted of the following (in millions): As of September 30, 2020 December 31, 2019 Collateralized: 2018 First Lien Loan, net of unamortized discount and issuance costs of $34.2 million and $28.8 million, respectively $ 2,618.7 $ 2,637.5 2020 Senior Secured Notes, net of unamortized issuance costs of $11.0 million due 2028 639.0 — Finance lease liability 17.5 20.3 Notes payable to former stockholders 0.3 0.3 Total long-term debt 3,275.5 2,658.1 Less: current portion (36.0) (37.8) Total non-current long-term debt $ 3,239.5 $ 2,620.3 2018 Credit Agreement On August 21, 2018, the Company entered into a $3.5 billion credit agreement (the "2018 Credit Agreement"), comprised of a $2.7 billion term loan (the "2018 First Lien Loan") and an $810.0 million revolving facility (the "Revolver"). Net proceeds from the 2018 First Lien Loan were $2.7 billion ($2.7 billion aggregate principal amount less $13.5 million stated discount and $20.6 million in debt transaction costs). On December 20, 2019, the Company amended the Revolver to increase the aggregate principal amount by $210.0 million, incurring an additional $0.5 million in debt transaction costs. As of September 30, 2020, the Company had a total $3.7 billion credit agreement including a $1.0 billion Revolver. The Company’s $1.0 billion Revolver, which matures on August 21, 2023, was undrawn as of September 30, 2020 and December 31, 2019. On January 20, 2020, the Company refinanced the aggregate principal amount of its 2018 First Lien Loan, incurring an additional $11.1 million in debt transaction costs. The 2018 First Lien Loan was refinanced under materially the same terms, except that of the applicable margin on the LIBOR for the replacement term loan in respect of the Eurodollar Rate Loans is 2.75% as compared to 3.25%, and for the Base Rate Loans is 1.75% compared to 2.25%. The 2018 Credit Agreement bears interest at a variable interest rate that the Company may select per the terms of the 2018 Credit Agreement. As of September 30, 2020, the rate is equal to 1-month LIBOR plus 2.75% as a result of the refinancing. The 2018 First Lien Loan matures on August 21, 2025. As of September 30, 2020, the effective interest rate of the 2018 First Lien Loan is 3.2%. The 2018 Credit Agreement requires quarterly principal payments equal to 0.25% of the aggregate principal amount of the 2018 First Lien Loan, including incremental borrowings. The 2018 Credit Agreement has a springing financial covenant, tested on the last day of each fiscal quarter if the outstanding loans under the Revolver exceed an applicable threshold. If the financial covenant is triggered, the First Lien Net Leverage Ratio is tested for compliance not to exceed 5.80 to 1.00. The Company was in compliance with all of the covenants under the 2018 Credit Agreement as of September 30, 2020 and December 31, 2019. 2020 Senior Secured Notes On May 22, 2020, the Company issued $650.0 million of 6.75% senior secured notes due May 15, 2028 (the "2020 Notes"). Net proceeds from the 2020 Notes were $638.5 million, consisting of a $650.0 million aggregate principal amount less $11.5 million from issuance costs. The 2020 Notes were offered in a private placement exempt from registration under the Securities Act of 1933, as amended. The 2020 Notes bear interest at a fixed rate of 6.75% and yielded an effective interest rate of 7% as of September 30, 2020.

Stock-based Payments

Stock-based Payments	9 Months Ended
	Sep. 30, 2020
Share-based Payment Arrangement [Abstract]
Stock-based Payments	Note 9: Stock-based Payments Options The tables below summarize the Company’s outstanding time-based stock options (in millions, except for per share amounts): Time-Based Options Number of Weighted Weighted Outstanding as of December 31, 2019 2.6 $ 11.51 5.9 Exercised (0.1) 10.04 — Forfeited (0.1) 13.93 — Outstanding as of September 30, 2020 2.4 $ 11.51 5.1 Exercisable as of September 30, 2020 3.7 $ 11.42 5.1 Total recognized compensation cost related to these stock option awards was $0.1 million and $1.4 million for the three months ended September 30, 2020 and 2019, respectively, and $0.4 million and $3.9 million for the nine months ended September 30, 2020 and 2019, respectively. At September 30, 2020, the total unrecognized compensation cost related to non-vested time-based option awards was $0.6 million. The tables below summarize the Company’s outstanding performance-based stock options (in millions, except for per share amounts): Performance-Based Options Number of Weighted Weighted Outstanding as of December 31, 2019 1.4 $ 11.64 5.9 Forfeited (0.0) 12.59 — Outstanding as of September 30, 2020 1.4 $ 11.62 5.2 Exercisable as of September 30, 2020 — — — Total recognized compensation cost related to these stock option awards was $0.0 million and $2.7 million for the three months ended September 30, 2020 and 2019, respectively and $0.0 million and $8.2 million for the nine months ended September 30, 2020 and 2019, respectively. At September 30, 2020, the compensation cost for performance-based options has been fully recognized. Restricted Stock Units The following table provides information about the Company’s outstanding restricted stock units ("RSUs") (in millions, except for per share amounts): Co-Investment RSUs Time-Based RSUs Performance-Based Number of RSUs Weighted Number of RSUs Weighted Number of RSUs Weighted Unvested as of December 31, 2019 0.0 $ 17.00 5.7 $ 15.63 1.1 $ 17.08 Granted — — 2.1 15.46 0.6 17.25 Vested (0.0) 17.00 (3.3) 14.73 (0.1) 17.29 Forfeited — — (0.3) 17.49 (0.1) 18.70 Unvested as of September 30, 2020 — $ — 4.2 $ 15.83 1.5 $ 17.04 The following table summarizes the Company's compensation expense related to RSUs (in millions): Three Months Ended September 30, Nine Months Ended September 30, Unrecognized at September 30, 2020 2020 2019 2020 2019 Time-Based RSUs $ 8.8 $ 11.4 $ 31.0 $ 32.5 $ 50.8 Co-Investment RSUs — 0.1 0.1 0.3 — Performance-Based RSUs 0.7 0.6 2.8 1.3 10.4 Total RSU stock-based compensation cost $ 9.5 $ 12.1 $ 33.9 $ 34.1 $ 61.2

Restructuring

Restructuring	9 Months Ended
	Sep. 30, 2020
Restructuring and Related Activities [Abstract]
Restructuring	Note 10: Restructuring As a result of operating efficiency initiatives announced in February 2020, the Company recognized restructuring charges of $12.9 million and $42.1 million during the three and nine months ended September 30, 2020, respectively. The charges primarily consisted of severance and employment-related costs due to reductions in headcount. All charges were classified as Restructuring, impairment and related charges in the unaudited Condensed Consolidated Statements of Operations. The following table details the Company’s severance and employment-related restructuring activity for the nine months ended September 30, 2020 (in millions): Severance Pay and Benefits Contract Terminations and Other Costs Total Balance as of December 31, 2019 $ 1.2 $ — $ 1.2 Restructuring Charges: Americas 18.4 9.7 28.1 EMEA 9.7 — 9.7 APAC 4.3 — 4.3 Total Restructuring Charges 32.4 9.7 42.1 Payments and Other: Americas (14.2) (8.9) (23.1) EMEA (6.0) — (6.0) APAC (3.2) — (3.2) Total Payments and Other (23.4) (8.9) (32.3) Balance as of September 30, 2020 $ 10.2 $ 0.8 $ 11.0 As of September 30, 2020 and December 31, 2019, $10.0 million and $1.2 million were recorded as Other current liabilities, respectively, and as of September 30, 2020, $1.0 million was recorded as Other non-current liabilities within the unaudited Condensed Consolidated Balance Sheet.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 11: Commitments and Contingencies Guarantees The Company’s guarantees primarily relate to requirements under certain client service contracts and have arisen through the normal course of business. These guarantees, with certain financial institutions, have both open and closed-ended terms; with remaining closed-ended terms up to 7.1 years and maximum potential future payments of $41.3 million in the aggregate, with none of these guarantees being individually material to the Company’s operating results, financial position or liquidity. The Company’s current expectation is that future payment or performance related to non-performance under these guarantees is considered remote. Contingencies In the normal course of business, the Company is subject to various claims and litigation. Many of these claims are covered under the Company’s current insurance programs, subject to self-insurance levels and deductibles. The Company is also subject to threatened or pending legal actions arising from activities of contractors. Such liabilities include the potential costs to settle litigation. A liability is recorded for the potential costs of carrying out further works based on known claims and previous claims history, and for losses from litigation that are probable and estimable. A liability is also recorded for the Company’s incurred but not reported ("IBNR") claims, based on assessment using prior claims history. Claims liabilities are presented as Other current liabilities and Other non-current liabilities in the unaudited Condensed Consolidated Balance Sheets. As of September 30, 2020 and December 31, 2019, contingent liabilities recorded within Other current liabilities were $116.1 million and $74.8 million, respectively, and contingent liabilities recorded within Other non-current liabilities were $24.4 million and $22.5 million, respectively. These contingent liabilities are made up of errors and omissions ("E&O") claims, workers’ compensation insurance liabilities and other claims and contingent liabilities. At September 30, 2020 and December 31, 2019, E&O and other claims were $45.3 million and $30.2 million, respectively, and workers’ compensation liabilities were $95.2 million and $67.1 million, respectively, included within Other current liabilities and Other non-current liabilities in the unaudited Condensed Consolidated Balance Sheets. The ultimate settlement of these matters may result in payments materially in excess of the amounts recorded due to their contingent nature and inherent uncertainties of settlement proceedings. The Company had insurance recoverable balances for E&O claims as of September 30, 2020 and December 31, 2019 totaling $5.4 million and $3.5 million, respectively.

Related Party Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2020
Related Party Transactions [Abstract]
Related Party Transactions	Note 12: Related Party Transactions On January 6, 2020, the Company formed a new asset services joint venture with Vanke Service, a leading Chinese real estate service provider, and a subsidiary of China Vanke Co. ("Cushman & Wakefield Vanke Service"). Cushman & Wakefield Vanke Service has more than 1,000 commercial property and facility management projects in over 80 cities across Greater China, with more than 20,000 employees. The Company owns a 35% interest in this joint venture and accounts for its investment using the equity method of accounting. The Company recognized a gain of $36.9 million upon formation of the joint venture. The gain was calculated as the difference between the fair value of the consideration transferred and the carrying amount of the former subsidiary's assets and liabilities. Receivables from affiliates As of September 30, 2020 and December 31, 2019, the Company had receivables from affiliates of $33.2 million and $33.4 million and $190.6 million and $198.8 million that are included in Other current assets and Other non-current assets, respectively, in the unaudited Condensed Consolidated Balance Sheets. These amounts primarily represent prepaid commissions, retention and sign-on bonuses to brokers and other items such as travel and other advances to employees.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2020
Fair Value Disclosures [Abstract]
Fair Value Measurements	Note 13: Fair Value Measurements The Company measures certain assets and liabilities in accordance with ASC 820, Fair Value Measurements and Disclosures ("ASC 820"), which defines fair value as the price that would be received for an asset, or paid to transfer a liability, in an orderly transaction between market participants on the measurement date. In addition, ASC 820 establishes a three-level fair value hierarchy that prioritizes the inputs used to measure fair value as follows: • Level 1: quoted prices (unadjusted) in active markets for identical assets or liabilities; • Level 2: inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly (i.e., as prices) or indirectly (i.e., derived from prices); and • Level 3: inputs for the asset or liability that are based on unobservable inputs in which there is little or no market data. There were no significant transfers in or out of Level 2 assets or liabilities for the three and nine months ended September 30, 2020 and 2019, but there were significant additions and divestitures to Level 1 assets during the three and nine months ended September 30, 2020. There were no significant transfers in or out of Level 1 and Level 2 during the three and nine months ended September 30, 2019. There have been no significant changes to the valuation techniques and inputs used to develop the recurring fair value measurements from those disclosed in the Company's audited Consolidated Financial Statements for the year ended December 31, 2019. Financial Instruments The Company's financial instruments include cash and cash equivalents, trade and other receivables, deferred purchase price receivable ("DPP"), restricted cash, accounts payable and accrued expenses, short-term borrowings, long-term debt, interest rate swaps and foreign exchange contracts. The carrying amount of cash and cash equivalents approximates the fair value of these instruments. Certain money market funds in which the Company has invested are highly liquid and considered cash equivalents. These funds are valued at the per unit rate published as the basis for current transactions. The estimated fair value of external debt was $3.2 billion and $2.7 billion as of September 30, 2020 and December 31, 2019, respectively. These instruments were valued using dealer quotes that are classified as Level 2 inputs in the fair value hierarchy. The gross carrying value of the debt was $3.3 billion and $2.7 billion as of September 30, 2020 and December 31, 2019, respectively, which excludes debt issuance costs. See Note 8: Long-term Debt and Other Borrowings for additional information. The estimated fair values of interest rate swaps and foreign currency forward contracts are determined based on the expected cash flows of each derivative. The valuation method reflects the contractual period and uses observable market-based inputs, including interest rate and foreign currency forward curves. Recurring Fair Value Measurements The following tables present information about the Company’s assets and liabilities that are measured at fair value on a recurring basis as of September 30, 2020 and December 31, 2019 (in millions): As of September 30, 2020 Total Level 1 Level 2 Level 3 Assets Cash equivalents - money market funds $ 433.0 $ 433.0 $ — $ — Deferred compensation plan assets 45.7 45.7 — — Foreign currency forward contracts 3.1 — 3.1 — Deferred purchase price receivable 165.7 — — 165.7 Total $ 647.5 $ 478.7 $ 3.1 $ 165.7 Liabilities Deferred compensation plan liabilities $ 44.3 $ 44.3 $ — $ — Foreign currency forward contracts 2.1 — 2.1 — Interest rate swap agreements 176.3 — 176.3 — Earn-out liabilities 15.7 — — 15.7 Total $ 238.4 $ 44.3 $ 178.4 $ 15.7 As of December 31, 2019 Total Level 1 Level 2 Level 3 Assets Cash equivalents - money market funds $ 206.9 $ 206.9 $ — $ — Deferred compensation plan assets 54.9 54.9 — — Foreign currency forward contracts 1.0 — 1.0 — Deferred purchase price receivable 66.9 — — 66.9 Total $ 329.7 $ 261.8 $ 1.0 $ 66.9 Liabilities Deferred compensation plan liabilities $ 51.3 $ 51.3 $ — $ — Foreign currency forward contracts 2.2 — 2.2 — Interest rate swap agreements 97.7 — 97.7 — Earn-out liabilities 24.6 — — 24.6 Total $ 175.8 $ 51.3 $ 99.9 $ 24.6 Deferred Compensation Plans The Company provided deferred compensation plans to certain U.S. employees whereby the employee could defer a portion of employee compensation, which the Company would hold in trust, enabling the employees to defer tax on compensation until payment is made to them from the trust. These plans are frozen. The employee continues to be at risk for any investment fluctuations of the funds held in trust. The fair value of assets and liabilities are based on the value of the underlying investments using quoted prices in active markets at period end. In the event of insolvency of the Company, the trust’s assets are available to all general creditors of the Company. In December 2018, the Company adopted a new deferred compensation plan, which became effective on January 1, 2019. The plan allows highly-compensated employees to defer a portion of compensation, enabling the employee to defer tax on compensation until payment is made. Deferred compensation is credited into an account denominated in ordinary shares of the Company in a number determined based on the fair market value of the Company’s ordinary shares on the date of the deposit. All payments are made in ordinary shares. Deferred compensation plan assets are presented within Prepaid expenses and other current assets and Other non-current assets in the unaudited Condensed Consolidated Balance Sheets. Deferred compensation liabilities are presented within Accrued compensation and Other non-current liabilities in the unaudited Condensed Consolidated Balance Sheets. Foreign Currency Forward Contracts and Net Investment Hedges, and Interest Rate Swaps and Cap Agreements Refer to Note 7: Derivative Financial Instruments and Hedging Activities for discussion of the fair value associated with these derivative assets and liabilities. Deferred Purchase Price Receivable The Company recorded a DPP under its A/R Securitization upon the initial sale of trade receivables. The DPP represents the difference between the fair value of the trade receivables sold and the cash purchase price and is recognized at fair value as part of the sale transaction. The DPP is subsequently remeasured each reporting period in order to account for activity during the period, such as the Seller’s interest in any newly transferred receivables, collections on previously transferred receivables attributable to the DPP and changes in estimates for credit losses. Changes in the DPP attributed to changes in estimates for credit losses are expected to be immaterial, as the underlying receivables are short-term and of high credit quality. The DPP is included in Other non-current assets in the unaudited Condensed Consolidated Balance Sheets and is valued using unobservable inputs (i.e., Level 3 inputs), primarily discounted cash flows. Refer to Note 14: Accounts Receivable Securitization for more information. Earn-out Liabilities Earn-out liabilities are classified within Level 3 in the fair value hierarchy because the methodology used to develop the estimated fair value includes significant unobservable inputs reflecting management’s own assumptions. The fair value of earn-out liabilities is based on the present value of probability-weighted expected return method related to the earn-out performance criteria on each reporting date. The probabilities of achievement assigned to the performance criteria are determined based on due diligence performed at the time of acquisition as well as actual performance achieved subsequent to acquisition. Adjustments to the earn-out liabilities in periods subsequent to the completion of acquisitions are reflected within Operating, administrative and other in the unaudited Condensed Consolidated Statements of Operations. The table below presents a reconciliation of liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) (in millions): Earn-out Liabilities 2020 2019 Balance as of January 1, $ 24.6 $ 38.3 Purchases/additions 2.7 — Net change in fair value and other adjustments — (0.2) Payments (11.6) (23.1) Balance as of September 30, $ 15.7 $ 15.0 Balance as of July 1, $ 24.5 $ 25.1 Purchases/additions — — Net change in fair value and other adjustments (0.6) (0.3) Payments (8.2) (9.8) Balance as of September 30, $ 15.7 $ 15.0

Accounts Receivable Securitizat

Accounts Receivable Securitization	9 Months Ended
	Sep. 30, 2020
Transfers and Servicing [Abstract]
Accounts Receivable Securitization	Note 14: Accounts Receivable Securitization On August 20, 2018, the Company amended the A/R Securitization that was initially entered into on March 8, 2017 to increase the investment limit from $100.0 million to $125.0 million. The termination date was extended to August 20, 2022 in December 2019. Under the A/R Securitization, certain of the Company's wholly owned subsidiaries continuously sell trade receivables to an unaffiliated financial institution. The Company’s wholly owned subsidiaries sell (or contribute) the receivables to wholly owned special purpose entities at fair market value. The special purpose entities then sell 100% of the receivables to an unaffiliated financial institution (“the Purchaser”). Although the special purpose entities are wholly owned subsidiaries of the Company, they are separate legal entities with their own separate creditors who will be entitled, upon their liquidation, to be satisfied out of their assets prior to any assets or value in such special purpose entities becoming available to their equity holders and their assets are not available to pay other creditors of the Company. As of September 30, 2020 the Company had no outstanding balance drawn on the investment limit. At December 31, 2019, the balance drawn on the investment limit was $85.0 million. All transactions under the A/R Securitization are accounted for as a true sale in accordance with ASC 860, Transfers and Servicing ("Topic 860") . Following the sale and transfer of the receivables to the Purchaser, the receivables are legally isolated from the Company and its subsidiaries, and the Company sells, conveys, transfers and assigns to the Purchaser all its rights, title and interest in the receivables. Receivables sold are derecognized from the statement of financial position. The Company continues to service, administer and collect the receivables on behalf of the Purchaser, and recognizes a servicing liability in accordance with Topic 860. Any financial statement impact associated with the servicing liability was immaterial for all periods presented. This program allows the Company to receive a cash payment and with a DPP for sold receivables. The DPP is paid to the Company in cash on behalf of the Purchaser as the receivables are collected; however, due to the revolving nature of the A/R Securitization, cash collected from the Company’s customers is reinvested by the Purchaser daily in new receivable purchases under the A/R Securitization. For the nine months ended September 30, 2020 and 2019, receivables sold under the A/R securitization were $846.5 million and $837.7 million, respectively, and cash collections from customers on receivables sold were $856.8 million and $848.2 million, respectively, all of which were reinvested in new receivables purchases and are included in cash flows from operating activities in the unaudited Condensed Consolidated Statement of Cash Flows. As of September 30, 2020 and December 31, 2019, the outstanding principal on receivables sold under the A/R Securitization were $177.5 million and $187.8 million, respectively. Refer to Note 13: Fair Value Measurements for additional discussion on the fair value of the DPP as of September 30, 2020 and December 31, 2019.

Supplemental Cash Flow Informat

Supplemental Cash Flow Information	9 Months Ended
	Sep. 30, 2020
Supplemental Cash Flow Elements [Abstract]
Supplemental Cash Flow Information	Note 15: Supplemental Cash Flow Information The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the unaudited Condensed Consolidated Balance Sheets to the sum of such amounts presented in the unaudited Condensed Consolidated Statements of Cash Flows (in millions): Nine Months Ended September 30, 2020 2019 Cash and cash equivalents, beginning of period $ 813.2 $ 895.3 Restricted cash recorded in Other current assets, beginning of period 59.1 70.1 Total cash, cash equivalents and restricted cash shown in the statements of cash flows, beginning of period $ 872.3 $ 965.4 Cash and cash equivalents, end of period $ 916.8 $ 400.1 Restricted cash recorded in Other current assets, end of period 78.3 69.4 Total cash, cash equivalents and restricted cash shown in the statements of cash flows, end of period $ 995.1 $ 469.5 Supplemental cash flows and non-cash investing and financing activities are as follows (in millions): Nine Months Ended September 30, 2020 2019 Cash paid for: Interest $ 72.8 $ 115.3 Income taxes 42.4 48.7 Non-cash investing/financing activities: Property and equipment acquired through capital leases 6.5 8.0 Deferred and contingent acquisition payment obligations 31.5 12.3 Increase in beneficial interest in a securitization 13.8 4.1

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2020
Subsequent Events [Abstract]
Subsequent Events	Note 16: Subsequent Events The Company has evaluated subsequent events through November 5, 2020, the date on which these financial statements were issued, and has determined there are no material subsequent events to disclose.

New Accounting Standards (Polic

New Accounting Standards (Policies)	9 Months Ended
	Sep. 30, 2020
Accounting Policies [Abstract]
New Accounting Standards	The Company has adopted the following new accounting standards: Current Expected Credit Loss (CECL) In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments – Credit Losses (together with all subsequent amendments, (Topic 326)), which replaces the current U.S. GAAP that requires an incurred loss methodology for recognizing credit losses and delays recognition until it is probable a loss has been incurred. Topic 326 replaces the incurred loss methodology with a methodology that reflects expected credit losses and requires consideration of reasonable and supportable information to estimate credit losses. Trade and other receivables are presented on the consolidated balance sheets net of estimated expected credit losses. Upon initial recognition of a receivable, the Company estimates credit losses over the contractual term of the receivable and establishes an allowance based on historical experience, current available information and expectations of future economic conditions. The Company mitigates credit loss risk from its trade receivables by assessing customers for creditworthiness, including review of credit ratings, financial position, and historical experience with similar customers within similar geographic regions, where available. Credit risk is limited due to ongoing monitoring, high geographic customer distribution and low concentration of risk. As the risk of loss is determined to be similar based on the credit risk factors, the Company aggregates its trade receivables on a collective basis when assessing estimated credit losses. The Company adopted Topic 326 on January 1, 2020 in accordance with the modified retrospective approach, which resulted in an immaterial cumulative-effect adjustment to the opening balance of Accumulated deficit. Leases In February 2016, the FASB issued ASU No. 2016-02, Leases (together with all subsequent amendments, Topic 842), which replaced most existing lease guidance under U.S. GAAP when it became effective on January 1, 2019. The new guidance requires a lessee to record a Non-current operating lease asset and a corresponding lease liability on the balance sheet for all leases with terms longer than 12 months. The Company elected to use the optional transition method upon adoption and did not revise comparative financial statements or disclosures. Adoption of Topic 842 did not have an impact on the opening balance of Accumulated deficit as of January 1, 2019. Stock Compensation In June 2018, the FASB issued ASU No. 2018-07, Compensation - Stock Compensation: Improvements to Nonemployee Share-Based Payment Accounting (Topic 718). The ASU supersedes ASC 505-50, Equity-Based Payments to Non-Employees and expands the scope of Topic 718 to include stock-based payments granted to non-employees. Under the new guidance, the measurement date and performance and vesting conditions for stock-based payments to non-employees are aligned with those of employees, most notably aligning the award measurement date with the grant date of an award. The new guidance is required to be adopted using the modified retrospective transition approach. The Company adopted the new guidance effective January 1, 2019, with an immaterial impact on its financial statements and related disclosures. Derivatives and Hedging In August 2017, the FASB issued ASU No. 2017-12, Targeted Improvements to Accounting for Hedging Activities (Topic 815). The new guidance eliminates the requirement to separately measure and report hedge ineffectiveness and is intended to reduce the complexity of applying hedge accounting by simplifying the designation and measurement of hedging instruments. The ASU is required to be applied retrospectively to eliminate the separate measurement of ineffectiveness through a cumulative-effect adjustment to Accumulated other comprehensive income with a corresponding adjustment to the opening balance of retained earnings. The new guidance is required to be adopted using the retrospective approach. The Company adopted the new guidance effective January 1, 2019 with an immaterial impact on its financial statements and related disclosures. In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. This ASU provides temporary optional practical expedients for reference rate reform related activities that impact debt, leases, derivatives and other contracts and is effective through December 31, 2022. In the second quarter of 2020, the Company elected to apply the hedge accounting expedients related to probability of forecasted transactions and the assessments of effectiveness for future LIBOR-indexed cash flows to assume that the index upon which future hedged transactions will be based matches the index on the corresponding derivatives. The application of these expedients preserves the presentation of the derivatives with no impact to the financial statements and related disclosures. Income Taxes In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. The new guidance removes certain exceptions related to the approach for intraperiod tax allocation, the methodology for calculating income in an interim period, and the recognition of deferred tax liabilities for outside basis differences. The new guidance is effective for public companies for annual reporting periods and interim periods within those annual periods beginning after December 15, 2020. The Company adopted the new guidance effective July 1, 2020, with an immaterial impact to its financial statements and related disclosures.
Current Expected Credit Loss	Current Expected Credit Loss (CECL) In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments – Credit Losses (together with all subsequent amendments, (Topic 326)), which replaces the current U.S. GAAP that requires an incurred loss methodology for recognizing credit losses and delays recognition until it is probable a loss has been incurred. Topic 326 replaces the incurred loss methodology with a methodology that reflects expected credit losses and requires consideration of reasonable and supportable information to estimate credit losses. Trade and other receivables are presented on the consolidated balance sheets net of estimated expected credit losses. Upon initial recognition of a receivable, the Company estimates credit losses over the contractual term of the receivable and establishes an allowance based on historical experience, current available information and expectations of future economic conditions. The Company mitigates credit loss risk from its trade receivables by assessing customers for creditworthiness, including review of credit ratings, financial position, and historical experience with similar customers within similar geographic regions, where available. Credit risk is limited due to ongoing monitoring, high geographic customer distribution and low concentration of risk. As the risk of loss is determined to be similar based on the credit risk factors, the Company aggregates its trade receivables on a collective basis when assessing estimated credit losses.
Leases	LeasesIn February 2016, the FASB issued ASU No. 2016-02, Leases (together with all subsequent amendments, Topic 842), which replaced most existing lease guidance under U.S. GAAP when it became effective on January 1, 2019. The new guidance requires a lessee to record a Non-current operating lease asset and a corresponding lease liability on the balance sheet for all leases with terms longer than 12 months. The Company elected to use the optional transition method upon adoption and did not revise comparative financial statements or disclosures. Adoption of Topic 842 did not have an impact on the opening balance of Accumulated deficit as of January 1, 2019.
Stock Compensation	Stock Compensation In June 2018, the FASB issued ASU No. 2018-07, Compensation - Stock Compensation: Improvements to Nonemployee Share-Based Payment Accounting (Topic 718). The ASU supersedes ASC 505-50, Equity-Based Payments to Non-Employees and expands the scope of Topic 718 to include stock-based payments granted to non-employees. Under the new guidance, the measurement date and performance and vesting conditions for stock-based payments to non-employees are aligned with those of employees, most notably aligning the award measurement date with the grant date of an award. The new guidance is required to be adopted using the modified retrospective transition approach. The Company adopted the new guidance effective January 1, 2019, with an immaterial impact on its financial statements and related disclosures.
Derivatives and Hedging	Derivatives and Hedging In August 2017, the FASB issued ASU No. 2017-12, Targeted Improvements to Accounting for Hedging Activities (Topic 815). The new guidance eliminates the requirement to separately measure and report hedge ineffectiveness and is intended to reduce the complexity of applying hedge accounting by simplifying the designation and measurement of hedging instruments. The ASU is required to be applied retrospectively to eliminate the separate measurement of ineffectiveness through a cumulative-effect adjustment to Accumulated other comprehensive income with a corresponding adjustment to the opening balance of retained earnings. The new guidance is required to be adopted using the retrospective approach. The Company adopted the new guidance effective January 1, 2019 with an immaterial impact on its financial statements and related disclosures. In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. This ASU provides temporary optional practical expedients for reference rate reform related activities that impact debt, leases, derivatives and other contracts and is effective through December 31, 2022. In the second quarter of 2020, the Company elected to apply the hedge accounting expedients related to probability of forecasted transactions and the assessments of effectiveness for future LIBOR-indexed cash flows to assume that the index upon which future hedged transactions will be based matches the index on the corresponding derivatives. The application of these expedients preserves the presentation of the derivatives with no impact to the financial statements and related disclosures.
Income Taxes	Income Taxes In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. The new guidance removes certain exceptions related to the approach for intraperiod tax allocation, the methodology for calculating income in an interim period, and the recognition of deferred tax liabilities for outside basis differences. The new guidance is effective for public companies for annual reporting periods and interim periods within those annual periods beginning after December 15, 2020. The Company adopted the new guidance effective July 1, 2020, with an immaterial impact to its financial statements and related disclosures.

Segment Data (Tables)

Segment Data (Tables)	9 Months Ended
	Sep. 30, 2020
Segment Reporting [Abstract]
Schedule of Summarized Financial Information by Segment	As segment assets are not reported to or used by the CODM to measure business performance or allocate resources, total segment assets and capital expenditures are not presented below. Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 % Change 2020 2019 % Change Total revenue Americas $ 1,416.1 $ 1,512.8 (6) % $ 4,059.4 $ 4,353.3 (7) % EMEA 223.2 235.5 (5) % 638.3 667.0 (4) % APAC 292.3 370.5 (21) % 872.9 1,123.2 (22) % Total revenue $ 1,931.6 $ 2,118.8 (9) % $ 5,570.6 $ 6,143.5 (9) % Adjusted EBITDA Americas $ 81.2 $ 125.2 (35) % $ 199.1 $ 318.0 (37) % EMEA 11.5 20.3 (43) % 34.2 35.5 (4) % APAC 24.4 23.0 6 % 72.9 77.9 (6) %
Schedule of Adjusted EBITDA	Adjusted EBITDA is calculated as follows (in millions): Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 Adjusted EBITDA - Americas $ 81.2 $ 125.2 $ 199.1 $ 318.0 Adjusted EBITDA - EMEA 11.5 20.3 34.2 35.5 Adjusted EBITDA - APAC 24.4 23.0 72.9 77.9 Add/(less): Depreciation and amortization (64.9) (75.0) (211.5) (222.8) Interest expense, net of interest income (44.9) (37.4) (120.2) (112.8) Benefit from income taxes 4.6 11.0 38.8 40.5 Integration and other costs related to merger (12.8) (29.9) (47.6) (74.1) Pre-IPO stock-based compensation (4.5) (11.4) (16.7) (33.6) Acquisition related costs and efficiency initiatives (28.3) (8.0) (114.7) (17.7) Other (3.6) (6.1) (27.5) (13.8) Net income (loss) $ (37.3) $ 11.7 $ (193.2) $ (2.9)

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2020
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The following is a calculation of EPS (in millions, except per share amounts): Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 Basic EPS Net income (loss) attributable to shareholders $ (37.3) $ 11.7 $ (193.2) $ (2.9) Weighted average shares outstanding for basic earnings (loss) per share 221.1 218.0 220.5 217.2 Basic earnings (loss) per common share attributable to shareholders $ (0.17) $ 0.05 $ (0.88) $ (0.01) Diluted EPS Net income (loss) attributable to shareholders $ (37.3) $ 11.7 $ (193.2) $ (2.9) Weighted average shares outstanding for basic earnings (loss) per share 221.1 218.0 220.5 217.2 Dilutive effect of restricted stock units — 5.0 — — Dilutive effective of stock options — 1.5 — — Weighted average shares outstanding for diluted earnings (loss) per share 221.1 224.5 220.5 217.2 Diluted earnings (loss) per common share attributable to shareholders $ (0.17) $ 0.05 $ (0.88) $ (0.01)

Revenue (Tables)

Revenue (Tables)	9 Months Ended
	Sep. 30, 2020
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following tables disaggregate revenue by reportable segment and service line (in millions): Three Months Ended September 30, 2020 Revenue recognition timing Americas EMEA APAC Total Property, facilities and project management Over time $ 1,007.7 $ 117.1 $ 222.3 $ 1,347.1 Leasing At a point in time 245.6 44.0 33.9 323.5 Capital markets At a point in time 124.2 24.0 7.7 155.9 Valuation and other At a point in time or over time 38.6 38.1 28.4 105.1 Total revenue $ 1,416.1 $ 223.2 $ 292.3 $ 1,931.6 Three Months Ended September 30, 2019 Revenue recognition timing Americas EMEA APAC Total Property, facilities and project management Over time $ 906.1 $ 96.6 $ 283.4 $ 1,286.1 Leasing At a point in time 375.6 56.0 42.6 474.2 Capital markets At a point in time 182.8 41.7 14.8 239.3 Valuation and other At a point in time or over time 48.3 41.2 29.7 119.2 Total revenue $ 1,512.8 $ 235.5 $ 370.5 $ 2,118.8 Nine Months Ended September 30, 2020 Revenue recognition timing Americas EMEA APAC Total Property, facilities and project management Over time $ 2,919.8 $ 326.2 $ 664.9 $ 3,910.9 Leasing At a point in time 681.1 126.3 89.0 896.4 Capital markets At a point in time 347.4 69.6 35.0 452.0 Valuation and other At a point in time or over time 111.1 116.2 84.0 311.3 Total revenue $ 4,059.4 $ 638.3 $ 872.9 $ 5,570.6 Nine Months Ended September 30, 2019 Revenue recognition timing Americas EMEA APAC Total Property, facilities and project management Over time $ 2,667.9 $ 280.3 $ 851.6 $ 3,799.8 Leasing At a point in time 1,064.7 161.9 115.1 1,341.7 Capital markets At a point in time 494.8 101.3 71.8 667.9 Valuation and other At a point in time or over time 125.9 123.5 84.7 334.1 Total revenue $ 4,353.3 $ 667.0 $ 1,123.2 $ 6,143.5

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Summary of Goodwill	The following table summarizes the changes in the carrying amount of goodwill for the nine months ended September 30, 2020 (in millions): Americas EMEA APAC Total Balance as of December 31, 2019 $ 1,417.1 $ 282.2 $ 269.8 $ 1,969.1 Acquisitions 83.4 26.5 — 109.9 Disposals — — (25.2) (25.2) Measurement period adjustments (0.4) 0.4 — — Effect of movements in exchange rates and other (1.5) 2.2 5.0 5.7 Balance as of September 30, 2020 $ 1,498.6 $ 311.3 $ 249.6 $ 2,059.5
Summary of Finite-Lived Intangible Assets	The following tables summarize the carrying amounts and accumulated amortization of intangible assets (in millions): As of September 30, 2020 Useful Life (in years) Gross Value Accumulated Amortization Net Value C&W trade name Indefinite $ 546.0 $ — $ 546.0 Customer relationships 1 - 15 1,356.9 (919.8) 437.1 Other intangible assets 2 - 13 17.1 (8.4) 8.7 Total intangible assets $ 1,920.0 $ (928.2) $ 991.8 As of December 31, 2019 Useful Life (in years) Gross Value Accumulated Amortization Net Value C&W trade name Indefinite $ 546.0 $ — $ 546.0 Customer relationships 1 - 15 1,333.1 (827.5) 505.6 Other intangible assets 2 - 13 17.2 (6.2) 11.0 Total intangible assets $ 1,896.3 $ (833.7) $ 1,062.6
Summary of Indefinite-Lived Intangible Assets	The following tables summarize the carrying amounts and accumulated amortization of intangible assets (in millions): As of September 30, 2020 Useful Life (in years) Gross Value Accumulated Amortization Net Value C&W trade name Indefinite $ 546.0 $ — $ 546.0 Customer relationships 1 - 15 1,356.9 (919.8) 437.1 Other intangible assets 2 - 13 17.1 (8.4) 8.7 Total intangible assets $ 1,920.0 $ (928.2) $ 991.8 As of December 31, 2019 Useful Life (in years) Gross Value Accumulated Amortization Net Value C&W trade name Indefinite $ 546.0 $ — $ 546.0 Customer relationships 1 - 15 1,333.1 (827.5) 505.6 Other intangible assets 2 - 13 17.2 (6.2) 11.0 Total intangible assets $ 1,896.3 $ (833.7) $ 1,062.6

Derivative Financial Instrume_2

Derivative Financial Instruments and Hedging Activities (Tables)	9 Months Ended
	Sep. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Fair Value of Derivatives	The following table presents the fair value of derivatives as of September 30, 2020 and December 31, 2019 (in millions): September 30, 2020 December 31, 2019 September 30, 2020 Assets Liabilities Assets Liabilities Derivative Instrument Notional Fair Value Fair Value Fair Value Fair Value Designated: Cash flow hedges: Interest rate swaps $ 2,050.0 $ — $ 176.3 $ — $ 97.7 Non-designated: Foreign currency forward contracts 538.8 3.1 2.1 1.0 2.2
Schedule of Effect of Derivatives As Hedges, Net of Applicable Income Taxes	The following table presents the effect of derivatives designated as hedges, net of applicable income taxes, in the unaudited Condensed Consolidated Statements of Operations for the three months ended September 30, 2020 and 2019 (in millions): Beginning Amount of Loss (1) Amount of (Loss) Gain (2) Ending Three Months Ended September 30, 2020 Interest rate cash flow hedges $ 178.0 $ (19.3) $ 9.3 $ 168.0 $ 178.0 $ (19.3) $ 9.3 $ 168.0 Three Months Ended September 30, 2019 Interest rate cash flow hedges $ 70.0 $ 26.6 $ 1.1 $ 97.7 $ 70.0 $ 26.6 $ 1.1 $ 97.7 (1) Amount is net of related income tax expense of $0.0 million for the three months ended September 30, 2020 and 2019. (2) Amount is net of related income tax expense of $0.7 million and $0.8 million for the three months ended September 30, 2020 and 2019, respectively. The following table presents the effect of derivatives designated as hedges, net of applicable income taxes, in the unaudited Condensed Consolidated Statements of Operations for the nine months ended September 30, 2020 and 2019 (in millions): Beginning Amount of Loss (1) Amount of (Loss) Gain (2) Ending Nine Months Ended September 30, 2020 Interest rate cash flow hedges $ 79.0 $ 78.0 $ 11.0 $ 168.0 $ 79.0 $ 78.0 1 $ 11.0 2 $ 168.0 Nine Months Ended September 30, 2019 Interest rate cash flow hedges $ (13.3) $ 105.9 $ 5.1 $ 97.7 $ (13.3) $ 105.9 1 $ 5.1 2 $ 97.7 (1) Amount is net of related income tax expense of $0.0 million and $5.1 million for the nine months ended September 30, 2020 and 2019, respectively. (2) Amount is net of related income tax expense of $2.1 million and $2.3 million for the nine months ended September 30, 2020 and 2019, respectively.

Long-term Debt and Other Borr_2

Long-term Debt and Other Borrowings (Tables)	9 Months Ended
	Sep. 30, 2020
Debt Disclosure [Abstract]
Schedule of Long-term Debt	Long-term debt consisted of the following (in millions): As of September 30, 2020 December 31, 2019 Collateralized: 2018 First Lien Loan, net of unamortized discount and issuance costs of $34.2 million and $28.8 million, respectively $ 2,618.7 $ 2,637.5 2020 Senior Secured Notes, net of unamortized issuance costs of $11.0 million due 2028 639.0 — Finance lease liability 17.5 20.3 Notes payable to former stockholders 0.3 0.3 Total long-term debt 3,275.5 2,658.1 Less: current portion (36.0) (37.8) Total non-current long-term debt $ 3,239.5 $ 2,620.3

Stock-based Payments (Tables)

Stock-based Payments (Tables)	9 Months Ended
	Sep. 30, 2020
Share-based Payment Arrangement [Abstract]
Summary of Outstanding Time-Based and Performance-Based Stock Options	The tables below summarize the Company’s outstanding time-based stock options (in millions, except for per share amounts): Time-Based Options Number of Weighted Weighted Outstanding as of December 31, 2019 2.6 $ 11.51 5.9 Exercised (0.1) 10.04 — Forfeited (0.1) 13.93 — Outstanding as of September 30, 2020 2.4 $ 11.51 5.1 Exercisable as of September 30, 2020 3.7 $ 11.42 5.1 The tables below summarize the Company’s outstanding performance-based stock options (in millions, except for per share amounts): Performance-Based Options Number of Weighted Weighted Outstanding as of December 31, 2019 1.4 $ 11.64 5.9 Forfeited (0.0) 12.59 — Outstanding as of September 30, 2020 1.4 $ 11.62 5.2 Exercisable as of September 30, 2020 — — —
Summary of Outstanding RSU's	The following table provides information about the Company’s outstanding restricted stock units ("RSUs") (in millions, except for per share amounts): Co-Investment RSUs Time-Based RSUs Performance-Based Number of RSUs Weighted Number of RSUs Weighted Number of RSUs Weighted Unvested as of December 31, 2019 0.0 $ 17.00 5.7 $ 15.63 1.1 $ 17.08 Granted — — 2.1 15.46 0.6 17.25 Vested (0.0) 17.00 (3.3) 14.73 (0.1) 17.29 Forfeited — — (0.3) 17.49 (0.1) 18.70 Unvested as of September 30, 2020 — $ — 4.2 $ 15.83 1.5 $ 17.04
Summary of Compensation Expense Related to RSUs	The following table summarizes the Company's compensation expense related to RSUs (in millions): Three Months Ended September 30, Nine Months Ended September 30, Unrecognized at September 30, 2020 2020 2019 2020 2019 Time-Based RSUs $ 8.8 $ 11.4 $ 31.0 $ 32.5 $ 50.8 Co-Investment RSUs — 0.1 0.1 0.3 — Performance-Based RSUs 0.7 0.6 2.8 1.3 10.4 Total RSU stock-based compensation cost $ 9.5 $ 12.1 $ 33.9 $ 34.1 $ 61.2

Restructuring (Tables)

Restructuring (Tables)	9 Months Ended
	Sep. 30, 2020
Restructuring and Related Activities [Abstract]
Schedule of Severance and Other Restructuring Accrual Activity	The following table details the Company’s severance and employment-related restructuring activity for the nine months ended September 30, 2020 (in millions): Severance Pay and Benefits Contract Terminations and Other Costs Total Balance as of December 31, 2019 $ 1.2 $ — $ 1.2 Restructuring Charges: Americas 18.4 9.7 28.1 EMEA 9.7 — 9.7 APAC 4.3 — 4.3 Total Restructuring Charges 32.4 9.7 42.1 Payments and Other: Americas (14.2) (8.9) (23.1) EMEA (6.0) — (6.0) APAC (3.2) — (3.2) Total Payments and Other (23.4) (8.9) (32.3) Balance as of September 30, 2020 $ 10.2 $ 0.8 $ 11.0

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2020
Fair Value Disclosures [Abstract]
Recurring Fair Value Measurements	The following tables present information about the Company’s assets and liabilities that are measured at fair value on a recurring basis as of September 30, 2020 and December 31, 2019 (in millions): As of September 30, 2020 Total Level 1 Level 2 Level 3 Assets Cash equivalents - money market funds $ 433.0 $ 433.0 $ — $ — Deferred compensation plan assets 45.7 45.7 — — Foreign currency forward contracts 3.1 — 3.1 — Deferred purchase price receivable 165.7 — — 165.7 Total $ 647.5 $ 478.7 $ 3.1 $ 165.7 Liabilities Deferred compensation plan liabilities $ 44.3 $ 44.3 $ — $ — Foreign currency forward contracts 2.1 — 2.1 — Interest rate swap agreements 176.3 — 176.3 — Earn-out liabilities 15.7 — — 15.7 Total $ 238.4 $ 44.3 $ 178.4 $ 15.7 As of December 31, 2019 Total Level 1 Level 2 Level 3 Assets Cash equivalents - money market funds $ 206.9 $ 206.9 $ — $ — Deferred compensation plan assets 54.9 54.9 — — Foreign currency forward contracts 1.0 — 1.0 — Deferred purchase price receivable 66.9 — — 66.9 Total $ 329.7 $ 261.8 $ 1.0 $ 66.9 Liabilities Deferred compensation plan liabilities $ 51.3 $ 51.3 $ — $ — Foreign currency forward contracts 2.2 — 2.2 — Interest rate swap agreements 97.7 — 97.7 — Earn-out liabilities 24.6 — — 24.6 Total $ 175.8 $ 51.3 $ 99.9 $ 24.6
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation	The table below presents a reconciliation of liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) (in millions): Earn-out Liabilities 2020 2019 Balance as of January 1, $ 24.6 $ 38.3 Purchases/additions 2.7 — Net change in fair value and other adjustments — (0.2) Payments (11.6) (23.1) Balance as of September 30, $ 15.7 $ 15.0 Balance as of July 1, $ 24.5 $ 25.1 Purchases/additions — — Net change in fair value and other adjustments (0.6) (0.3) Payments (8.2) (9.8) Balance as of September 30, $ 15.7 $ 15.0

Supplemental Cash Flow Inform_2

Supplemental Cash Flow Information (Tables)	9 Months Ended
	Sep. 30, 2020
Supplemental Cash Flow Elements [Abstract]
Schedule of Supplemental Cash Flow Information	The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the unaudited Condensed Consolidated Balance Sheets to the sum of such amounts presented in the unaudited Condensed Consolidated Statements of Cash Flows (in millions): Nine Months Ended September 30, 2020 2019 Cash and cash equivalents, beginning of period $ 813.2 $ 895.3 Restricted cash recorded in Other current assets, beginning of period 59.1 70.1 Total cash, cash equivalents and restricted cash shown in the statements of cash flows, beginning of period $ 872.3 $ 965.4 Cash and cash equivalents, end of period $ 916.8 $ 400.1 Restricted cash recorded in Other current assets, end of period 78.3 69.4 Total cash, cash equivalents and restricted cash shown in the statements of cash flows, end of period $ 995.1 $ 469.5 Supplemental cash flows and non-cash investing and financing activities are as follows (in millions): Nine Months Ended September 30, 2020 2019 Cash paid for: Interest $ 72.8 $ 115.3 Income taxes 42.4 48.7 Non-cash investing/financing activities: Property and equipment acquired through capital leases 6.5 8.0 Deferred and contingent acquisition payment obligations 31.5 12.3 Increase in beneficial interest in a securitization 13.8 4.1

Segment Data - Schedule of summ

Segment Data - Schedule of summarized financial information by segment (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting Information [Line Items]
Total revenue	$ 1,931.6	$ 2,118.8	$ 5,570.6	$ 6,143.5
Percent change in revenue amount	(9.00%)		(9.00%)
Americas
Segment Reporting Information [Line Items]
Total revenue	$ 1,416.1	1,512.8	$ 4,059.4	4,353.3
EMEA
Segment Reporting Information [Line Items]
Total revenue	223.2	235.5	638.3	667
APAC
Segment Reporting Information [Line Items]
Total revenue	292.3	370.5	872.9	1,123.2
Operating segments | Americas
Segment Reporting Information [Line Items]
Total revenue	$ 1,416.1	1,512.8	$ 4,059.4	4,353.3
Percent change in revenue amount	(6.00%)		(7.00%)
Adjusted EBITDA	$ 81.2	125.2	$ 199.1	318
Percent change in adjusted EBIDTA	(35.00%)		(37.00%)
Operating segments | EMEA
Segment Reporting Information [Line Items]
Total revenue	$ 223.2	235.5	$ 638.3	667
Percent change in revenue amount	(5.00%)		(4.00%)
Adjusted EBITDA	$ 11.5	20.3	$ 34.2	35.5
Percent change in adjusted EBIDTA	(43.00%)		(4.00%)
Operating segments | APAC
Segment Reporting Information [Line Items]
Total revenue	$ 292.3	370.5	$ 872.9	1,123.2
Percent change in revenue amount	(21.00%)		(22.00%)
Adjusted EBITDA	$ 24.4	$ 23	$ 72.9	$ 77.9
Percent change in adjusted EBIDTA	6.00%		(6.00%)

Segment Data - Schedule of adju

Segment Data - Schedule of adjusted EBITDA (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting Information [Line Items]
Depreciation and amortization	$ (64.9)	$ (75)	$ (211.5)	$ (222.8)
Interest expense, net of interest income	(44.9)	(37.4)	(120.2)	(112.8)
Benefit from income taxes	4.6	11	38.8	40.5
Integration and other costs related to merger	(12.8)	(29.9)	(47.6)	(74.1)
Pre-IPO stock-based compensation	(4.5)	(11.4)	(16.7)	(33.6)
Acquisition related costs and efficiency initiatives	(28.3)	(8)	(114.7)	(17.7)
Other	(3.6)	(6.1)	(27.5)	(13.8)
Net income (loss)	(37.3)	11.7	(193.2)	(2.9)
Operating segments | Americas
Segment Reporting Information [Line Items]
Adjusted EBITDA	81.2	125.2	199.1	318
Operating segments | EMEA
Segment Reporting Information [Line Items]
Adjusted EBITDA	11.5	20.3	34.2	35.5
Operating segments | APAC
Segment Reporting Information [Line Items]
Adjusted EBITDA	$ 24.4	$ 23	$ 72.9	$ 77.9

Earnings Per Share - Narrative

Earnings Per Share - Narrative (Details) - shares shares in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Sep. 30, 2019
Earnings Per Share [Abstract]
Potentially dilutive securities not included in computation (in shares)	0.6	1.9	7.2

Earnings Per Share - Schedule o

Earnings Per Share - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Basic EPS
Net income (loss) attributable to shareholders	$ (37.3)	$ 11.7	$ (193.2)	$ (2.9)
Weighted average shares outstanding for basic earnings (loss) per share	221.1	218	220.5	217.2
Basic earnings (loss) per common share attributable to shareholders (in dollars per share)	$ (0.17)	$ 0.05	$ (0.88)	$ (0.01)
Diluted EPS
Net income (loss) attributable to shareholders	$ (37.3)	$ 11.7	$ (193.2)	$ (2.9)
Weighted average shares outstanding for basic earnings (loss) per share	221.1	218	220.5	217.2
Weighted average shares outstanding for diluted earnings (loss) per share	221.1	224.5	220.5	217.2
Diluted earnings (loss) per common share attributable to shareholders (in dollars per share)	$ (0.17)	$ 0.05	$ (0.88)	$ (0.01)
Restricted Stock Units (RSUs)
Diluted EPS
Dilutive effect of stocks (in shares)	0	5	0	0
Stock Options
Diluted EPS
Dilutive effect of stocks (in shares)	0	1.5	0	0

Revenue - Narrative (Details)

Revenue - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract liabilities	$ 49.3	$ 54.4
Prepaid expenses and other current assets
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract assets	323.8	313.4
Other non-current assets
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract assets	$ 23.8	$ 26.7

Revenue - Disaggregation of rev

Revenue - Disaggregation of revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Line Items]
Revenue	$ 1,931.6	$ 2,118.8	$ 5,570.6	$ 6,143.5
Americas
Disaggregation of Revenue [Line Items]
Revenue	1,416.1	1,512.8	4,059.4	4,353.3
EMEA
Disaggregation of Revenue [Line Items]
Revenue	223.2	235.5	638.3	667
APAC
Disaggregation of Revenue [Line Items]
Revenue	292.3	370.5	872.9	1,123.2
Property, facilities and project management | Over time
Disaggregation of Revenue [Line Items]
Revenue	1,347.1	1,286.1	3,910.9	3,799.8
Property, facilities and project management | Americas | Over time
Disaggregation of Revenue [Line Items]
Revenue	1,007.7	906.1	2,919.8	2,667.9
Property, facilities and project management | EMEA | Over time
Disaggregation of Revenue [Line Items]
Revenue	117.1	96.6	326.2	280.3
Property, facilities and project management | APAC | Over time
Disaggregation of Revenue [Line Items]
Revenue	222.3	283.4	664.9	851.6
Leasing | At a point in time
Disaggregation of Revenue [Line Items]
Revenue	323.5	474.2	896.4	1,341.7
Leasing | Americas | At a point in time
Disaggregation of Revenue [Line Items]
Revenue	245.6	375.6	681.1	1,064.7
Leasing | EMEA | At a point in time
Disaggregation of Revenue [Line Items]
Revenue	44	56	126.3	161.9
Leasing | APAC | At a point in time
Disaggregation of Revenue [Line Items]
Revenue	33.9	42.6	89	115.1
Capital markets | At a point in time
Disaggregation of Revenue [Line Items]
Revenue	155.9	239.3	452	667.9
Capital markets | Americas | At a point in time
Disaggregation of Revenue [Line Items]
Revenue	124.2	182.8	347.4	494.8
Capital markets | EMEA | At a point in time
Disaggregation of Revenue [Line Items]
Revenue	24	41.7	69.6	101.3
Capital markets | APAC | At a point in time
Disaggregation of Revenue [Line Items]
Revenue	7.7	14.8	35	71.8
Valuation and other | At a point in time or over time
Disaggregation of Revenue [Line Items]
Revenue	105.1	119.2	311.3	334.1
Valuation and other | Americas | At a point in time or over time
Disaggregation of Revenue [Line Items]
Revenue	38.6	48.3	111.1	125.9
Valuation and other | EMEA | At a point in time or over time
Disaggregation of Revenue [Line Items]
Revenue	38.1	41.2	116.2	123.5
Valuation and other | APAC | At a point in time or over time
Disaggregation of Revenue [Line Items]
Revenue	$ 28.4	$ 29.7	$ 84	$ 84.7

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Summary of Goodwill (Details) $ in Millions	9 Months Ended
	Sep. 30, 2020USD ($)
Goodwill [Roll Forward]
Balance as of December 31, 2019	$ 1,969.1
Acquisitions	109.9
Disposals	(25.2)
Measurement period adjustments	0
Effect of movements in exchange rates and other	5.7
Balance as of September 30, 2020	2,059.5
Americas
Goodwill [Roll Forward]
Balance as of December 31, 2019	1,417.1
Acquisitions	83.4
Disposals	0
Measurement period adjustments	(0.4)
Effect of movements in exchange rates and other	(1.5)
Balance as of September 30, 2020	1,498.6
EMEA
Goodwill [Roll Forward]
Balance as of December 31, 2019	282.2
Acquisitions	26.5
Disposals	0
Measurement period adjustments	0.4
Effect of movements in exchange rates and other	2.2
Balance as of September 30, 2020	311.3
APAC
Goodwill [Roll Forward]
Balance as of December 31, 2019	269.8
Acquisitions	0
Disposals	(25.2)
Measurement period adjustments	0
Effect of movements in exchange rates and other	5
Balance as of September 30, 2020	$ 249.6

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Impairment charges	$ 0	$ 0	$ 0	$ 0
Intangible Impairment charges	0	0	0	0
Amortization expense	$ 36,700,000	$ 47,300,000	$ 124,600,000	$ 142,600,000

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, accumulated amortization	$ (928.2)	$ (833.7)
Gross Value	1,920	1,896.3
Accumulated Amortization	(928.2)	(833.7)
Net Value	991.8	1,062.6
C&W trade name
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	546	546
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	1,356.9	1,333.1
Finite-lived intangible assets, accumulated amortization	(919.8)	(827.5)
Finite-lived intangible assets, net value	437.1	505.6
Accumulated Amortization	$ (919.8)	$ (827.5)
Customer relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life (in years)	1 year	1 year
Customer relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Life (in years)	15 years	15 years
Other intangible assets
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	$ 17.1	$ 17.2
Finite-lived intangible assets, accumulated amortization	(8.4)	(6.2)
Finite-lived intangible assets, net value	8.7	11
Accumulated Amortization	$ (8.4)	$ (6.2)
Other intangible assets | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life (in years)	2 years	2 years
Other intangible assets | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Life (in years)	13 years	13 years

Derivative Financial Instrume_3

Derivative Financial Instruments and Hedging Activities - Narrative (Details) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2020USD ($)derivative_instrument	Sep. 30, 2019USD ($)	Sep. 30, 2020USD ($)derivative_instrument	Sep. 30, 2019USD ($)	Dec. 31, 2019USD ($)derivative_instrument
Derivative [Line Items]
Interest expense, net of interest income	$ (44.9)	$ (37.4)	$ (120.2)	$ (112.8)
Designated
Derivative [Line Items]
Pre-tax gain (loss) included in accumulated other comprehensive loss for interest rate derivatives			165.5		$ 74.5
Pre-tax losses reclassified during the next twelve months			$ 37.4
Designated | Interest rate hedge
Derivative [Line Items]
Number of derivative instruments held | derivative_instrument	5		5
Non-Designated | Foreign currency forward contracts
Derivative [Line Items]
Number of derivative instruments held | derivative_instrument	21		21		23
Gain on derivative instruments	$ 2.1	1.6	$ 2.3	1.5
Notional amount	538.8		538.8		$ 498.2
Reclassification out of Accumulated Other Comprehensive Income | Unrealized Hedging (Losses) Gains | Interest rate hedge
Derivative [Line Items]
Interest expense, net of interest income	$ 10	$ 1.9	$ 13.1	$ 7.4

Derivative Financial Instrume_4

Derivative Financial Instruments and Hedging Activities - Schedule of Fair Value of Derivatives (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Designated | Cash Flow Hedging | Interest rate swaps
Derivative [Line Items]
Notional	$ 2,050
Designated | Cash Flow Hedging | Other non-current assets | Interest rate swaps
Derivative [Line Items]
Assets fair value	0	$ 0
Designated | Cash Flow Hedging | Other non-current liabilities | Interest rate swaps
Derivative [Line Items]
Liabilities fair value	176.3	97.7
Non-Designated | Foreign currency forward contracts
Derivative [Line Items]
Notional	538.8	498.2
Non-Designated | Other non-current assets | Foreign currency forward contracts
Derivative [Line Items]
Assets fair value	3.1	1
Non-Designated | Other non-current liabilities | Foreign currency forward contracts
Derivative [Line Items]
Liabilities fair value	$ 2.1	$ 2.2

Derivative Financial Instrume_5

Derivative Financial Instruments and Hedging Activities - Schedule of Effect of Derivatives As Hedges, Net of Applicable Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Accumulated Other Comprehensive Loss (Gain)		$ (1,288)	$ (1,301.3)	$ (1,360.1)
Amount of Loss (Gain) Recognized in Other Comprehensive Loss on Derivatives	$ (19.3)	26.6	78	105.9
Ending Accumulated Other Comprehensive Loss (Gain)	(1,046.1)	(1,234.2)	(1,046.1)	(1,234.2)
Unrealized Hedging (Losses) Gains
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Accumulated Other Comprehensive Loss (Gain)	178	70	79	(13.3)
Amount of Loss (Gain) Recognized in Other Comprehensive Loss on Derivatives	(19.3)	26.6	78	105.9
Amount of (Loss) Gain Reclassified from Accumulated Other Comprehensive Loss into Statement of Operations	9.3	1.1	11	5.1
Ending Accumulated Other Comprehensive Loss (Gain)	168	97.7	168	97.7
Amount of loss (gain) recognized, tax benefit (expense)	0	0	0	5.1
Amount of loss (gain) reclassified, tax benefit (expense)	(0.7)	(0.8)	(2.1)	(2.3)
Cash Flow Hedging | Unrealized Hedging (Losses) Gains | Interest rate hedge
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Accumulated Other Comprehensive Loss (Gain)	178	70	79	(13.3)
Amount of Loss (Gain) Recognized in Other Comprehensive Loss on Derivatives	(19.3)	26.6	78	105.9
Amount of (Loss) Gain Reclassified from Accumulated Other Comprehensive Loss into Statement of Operations	9.3	1.1	11	5.1
Ending Accumulated Other Comprehensive Loss (Gain)	$ 168	$ 97.7	$ 168	$ 97.7

Long-term Debt and Other Borr_3

Long-term Debt and Other Borrowings - Schedule of Long-term Debt (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Total long-term debt	$ 3,275.5	$ 2,658.1
Less: current portion	(36)	(37.8)
Total non-current long-term debt	3,239.5	2,620.3
Secured Debt | 2018 First Lien Loan
Debt Instrument [Line Items]
Unamortized discount and issuance costs	34.2	28.8
Total long-term debt	2,618.7	2,637.5
2020 Senior Secured Note | Senior Secured Note Due May 2028
Debt Instrument [Line Items]
Unamortized discount and issuance costs	11
Total long-term debt	639	0
Finance lease liability
Debt Instrument [Line Items]
Total long-term debt	17.5	20.3
Notes payable to former stockholders
Debt Instrument [Line Items]
Total long-term debt	$ 0.3	$ 0.3

Long-term Debt and Other Borr_4

Long-term Debt and Other Borrowings - Narrative (Details) - USD ($)	Aug. 21, 2025	May 22, 2020	Jan. 20, 2020	Dec. 20, 2019	Aug. 21, 2018	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Debt Instrument [Line Items]
Issuance of senior secured notes						$ 650,000,000	$ 0
Revolving Credit Facility
Debt Instrument [Line Items]
Debt issuance costs, amount			$ 11,100,000	$ 500,000
2018 Credit Agreement
Debt Instrument [Line Items]
Debt instrument, face amount					$ 3,500,000,000
Quarterly principal payment, percentage						0.25%
Secured Debt | 2018 First Lien Loan
Debt Instrument [Line Items]
Debt instrument, face amount					2,700,000,000
Proceeds from debt, net of stated discount and debt issuance costs					2,700,000,000
Stated discount, amount					13,500,000
Debt issuance costs, amount					20,600,000
Effective interest rate						3.20%
Net leverage ratio						5.80
Line of Credit | 2018 Credit Agreement | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, face amount					$ 810,000,000
Line of Credit | First Lien Loan | Revolving Credit Facility
Debt Instrument [Line Items]
Outstanding funds drawn						$ 1,000,000,000		$ 1,000,000,000
Line of Credit | First Lien Loan | Letter of Credit
Debt Instrument [Line Items]
Term loan increase				$ 210,000,000
Outstanding funds drawn						$ 3,700,000,000
2020 Senior Secured Note | Senior Secured Note Due May 2028
Debt Instrument [Line Items]
Debt instrument, face amount		$ 650,000,000
Proceeds from debt, net of stated discount and debt issuance costs		638,500,000
Debt issuance costs, amount		$ 11,500,000
Effective interest rate		7.00%
Stated interest rate		6.75%
Issuance of senior secured notes		$ 650,000,000
Eurodollar Rate | 2018 Credit Agreement
Debt Instrument [Line Items]
Basis spread on variable rate			2.75%
Eurodollar Rate | 2018 Credit Agreement | Forecast
Debt Instrument [Line Items]
Basis spread on variable rate	3.25%
Base Rate | 2018 Credit Agreement
Debt Instrument [Line Items]
Basis spread on variable rate			1.75%
Base Rate | 2018 Credit Agreement | Forecast
Debt Instrument [Line Items]
Basis spread on variable rate	2.25%
LIBOR | 2018 Credit Agreement
Debt Instrument [Line Items]
Basis spread on variable rate						2.75%

Stock-based Payments - Summary

Stock-based Payments - Summary of Time-based Stock Options (Details) - Time-Based Options - $ / shares shares in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Number of Options
Outstanding, beginning balance (in shares)	2.6
Exercised (in shares)	(0.1)
Forfeited (in shares)	(0.1)
Outstanding, ending balance (in shares)	2.4	2.6
Exercisable (in shares)	3.7
Weighted Average Exercise Price per Share
Outstanding, beginning balance (in dollars per share)	$ 11.51
Exercised (in dollars per share)	10.04
Forfeited (in dollars per share)	13.93
Outstanding, ending balance (in dollars per share)	11.51	$ 11.51
Weighted average exercise price per share, exercisable (in dollars per share)	$ 11.42
Weighted average remaining contractual term, outstanding	5 years 1 month 6 days	5 years 10 months 24 days
Weighted average remaining contractual term, exercisable	5 years 1 month 6 days

Stock-based Payments - Narrativ

Stock-based Payments - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-IPO stock-based compensation	$ 4.5	$ 11.4	$ 16.7	$ 33.6
Time-Based Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-IPO stock-based compensation	0.1	1.4	0.4	3.9
Unrecognized compensation cost related to non-vested time-based option awards	0.6		0.6
Performance-Based Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-IPO stock-based compensation	$ 0	$ 2.7	$ 0	$ 8.2

Stock-based Payments - Summar_2

Stock-based Payments - Summary of Performance-Based Options (Details) - Performance-Based Options - $ / shares shares in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Number of Options
Outstanding, beginning balance (in shares)	1.4
Forfeited (in shares)	0
Outstanding, ending balance (in shares)	1.4	1.4
Exercisable (in shares)	0
Weighted Average Exercise Price per Share
Outstanding, beginning balance (in dollars per share)	$ 11.64
Forfeited (in dollars per share)	12.59
Outstanding, ending balance (in dollars per share)	11.62	$ 11.64
Weighted average exercise price per share, exercisable (in dollars per share)	$ 0
Weighted average remaining contractual term, outstanding	5 years 2 months 12 days	5 years 10 months 24 days
Weighted average remaining contractual term, exercisable	0 years

Stock-based Payments - Summar_3

Stock-based Payments - Summary of Restricted Stock Units (Details) shares in Millions	9 Months Ended
	Sep. 30, 2020$ / sharesshares
Co-Investment RSUs
Number of RSUs
Unvested, beginning balance (in shares) | shares	0
Granted (in shares) | shares	0
Vested (in shares) | shares	0
Forfeited (in shares) | shares	0
Unvested, ending balance (in shares) | shares	0
Weighted Average Fair Value Per Share
Unvested, beginning balance (in dollars per share) | $ / shares	$ 17
Granted (in dollars per share) | $ / shares	0
Vested (in dollars per share) | $ / shares	17
Forfeited (in dollars per share) | $ / shares	0
Unvested, ending balance (in dollars per share) | $ / shares	$ 0
Time-Based RSUs
Number of RSUs
Unvested, beginning balance (in shares) | shares	5.7
Granted (in shares) | shares	2.1
Vested (in shares) | shares	(3.3)
Forfeited (in shares) | shares	(0.3)
Unvested, ending balance (in shares) | shares	4.2
Weighted Average Fair Value Per Share
Unvested, beginning balance (in dollars per share) | $ / shares	$ 15.63
Granted (in dollars per share) | $ / shares	15.46
Vested (in dollars per share) | $ / shares	14.73
Forfeited (in dollars per share) | $ / shares	17.49
Unvested, ending balance (in dollars per share) | $ / shares	$ 15.83
Performance-Based RSUs
Number of RSUs
Unvested, beginning balance (in shares) | shares	1.1
Granted (in shares) | shares	0.6
Vested (in shares) | shares	(0.1)
Forfeited (in shares) | shares	(0.1)
Unvested, ending balance (in shares) | shares	1.5
Weighted Average Fair Value Per Share
Unvested, beginning balance (in dollars per share) | $ / shares	$ 17.08
Granted (in dollars per share) | $ / shares	17.25
Vested (in dollars per share) | $ / shares	17.29
Forfeited (in dollars per share) | $ / shares	18.70
Unvested, ending balance (in dollars per share) | $ / shares	$ 17.04

Stock-based Payments - Summar_4

Stock-based Payments - Summary of RSU Compensation Expense (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-IPO stock-based compensation	$ 4.5	$ 11.4	$ 16.7	$ 33.6
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-IPO stock-based compensation	9.5	12.1	33.9	34.1
Unrecognized compensation expense related to RSUs	61.2		61.2
Time-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-IPO stock-based compensation	8.8	11.4	31	32.5
Unrecognized compensation expense related to RSUs	50.8		50.8
Co-Investment RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-IPO stock-based compensation	0	0.1	0.1	0.3
Unrecognized compensation expense related to RSUs	0		0
Performance-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-IPO stock-based compensation	0.7	$ 0.6	2.8	$ 1.3
Unrecognized compensation expense related to RSUs	$ 10.4		$ 10.4

Restructuring - Narrative (Deta

Restructuring - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Dec. 31, 2019
Restructuring and Related Activities [Abstract]
Restructuring charges	$ 12.9	$ 42.1
Restructuring accrual in other current liabilities	10	10	$ 1.2
Restructuring accrual in other non-current liabilities	$ 1	$ 1

Restructuring - Schedule of Sev

Restructuring - Schedule of Severance and Other Restructuring Accrual Activity (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020
Restructuring Reserve [Roll Forward]
Balance as of December 31, 2019		$ 1.2
Restructuring charges	$ 12.9	42.1
Payments and other		(32.3)
Balance as of September 30, 2020	11	11
Severance Pay and Benefits
Restructuring Reserve [Roll Forward]
Balance as of December 31, 2019		1.2
Restructuring charges		32.4
Payments and other		(23.4)
Balance as of September 30, 2020	10.2	10.2
Contract Terminations and Other Costs
Restructuring Reserve [Roll Forward]
Balance as of December 31, 2019		0
Restructuring charges		9.7
Payments and other		(8.9)
Balance as of September 30, 2020	$ 0.8	0.8
Americas
Restructuring Reserve [Roll Forward]
Restructuring charges		28.1
Payments and other		(23.1)
Americas | Severance Pay and Benefits
Restructuring Reserve [Roll Forward]
Restructuring charges		18.4
Payments and other		(14.2)
Americas | Contract Terminations and Other Costs
Restructuring Reserve [Roll Forward]
Restructuring charges		9.7
Payments and other		(8.9)
EMEA
Restructuring Reserve [Roll Forward]
Restructuring charges		9.7
Payments and other		(6)
EMEA | Severance Pay and Benefits
Restructuring Reserve [Roll Forward]
Restructuring charges		9.7
Payments and other		(6)
EMEA | Contract Terminations and Other Costs
Restructuring Reserve [Roll Forward]
Restructuring charges		0
Payments and other		0
APAC
Restructuring Reserve [Roll Forward]
Restructuring charges		4.3
Payments and other		(3.2)
APAC | Severance Pay and Benefits
Restructuring Reserve [Roll Forward]
Restructuring charges		4.3
Payments and other		(3.2)
APAC | Contract Terminations and Other Costs
Restructuring Reserve [Roll Forward]
Restructuring charges		0
Payments and other		$ 0

Commitments and Contingencies -

Commitments and Contingencies - Narrative (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Loss Contingencies [Line Items]
Closed-ended terms for guarantees	7 years 1 month 6 days
Maximum potential future payments on guarantees	$ 41.3
Contingent liabilities, current	116.1	$ 74.8
Contingent liabilities, non-current	24.4	22.5
Errors and Omissions (E&O) claims and other claims
Loss Contingencies [Line Items]
Contingent liabilities	45.3	30.2
Workers' compensation
Loss Contingencies [Line Items]
Contingent liabilities	95.2	67.1
Insurance recoverable
Loss Contingencies [Line Items]
Loss contingency, receivable	$ 5.4	$ 3.5

Related Party Transactions - Na

Related Party Transactions - Narrative (Details) property in Thousands, employee in Thousands, $ in Millions	Jan. 06, 2020USD ($)employeepropertycity	Sep. 30, 2020USD ($)	Dec. 31, 2019USD ($)
Corporate Joint Venture
Related Party Transaction [Line Items]
Number of commercial properties | property	1
Number of cities | city	80
Number of employees | employee	20
Gain from formation of Joint Venture	$ 36.9
Corporate Joint Venture | Cushman & Wakefield Vanke Service
Related Party Transaction [Line Items]
Interest in joint venture	35.00%
Affiliates
Related Party Transaction [Line Items]
Accounts receivable, related parties, current		$ 33.2	$ 33.4
Accounts receivable, related parties, noncurrent		$ 190.6	$ 198.8

Fair Value Measurements - Narra

Fair Value Measurements - Narrative (Details) - USD ($) $ in Billions	Sep. 30, 2020	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Estimated fair value of external debt	$ 3.2	$ 2.7
Gross carrying value of debt	$ 3.3	$ 2.7

Fair Value Measurements - Recur

Fair Value Measurements - Recurring Fair Value Measurements (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Assets
Cash equivalents - money market funds	$ 433	$ 206.9
Deferred compensation plan assets	45.7	54.9
Deferred purchase price receivable	165.7	66.9
Total	647.5	329.7
Liabilities
Deferred compensation plan liabilities	44.3	51.3
Earn-out liabilities	15.7	24.6
Total	238.4	175.8
Level 1
Assets
Cash equivalents - money market funds	433	206.9
Deferred compensation plan assets	45.7	54.9
Deferred purchase price receivable	0	0
Total	478.7	261.8
Liabilities
Deferred compensation plan liabilities	44.3	51.3
Earn-out liabilities	0	0
Total	44.3	51.3
Level 2
Assets
Cash equivalents - money market funds	0	0
Deferred compensation plan assets	0	0
Deferred purchase price receivable	0	0
Total	3.1	1
Liabilities
Deferred compensation plan liabilities	0	0
Earn-out liabilities	0	0
Total	178.4	99.9
Level 3
Assets
Cash equivalents - money market funds	0	0
Deferred compensation plan assets	0	0
Deferred purchase price receivable	165.7	66.9
Total	165.7	66.9
Liabilities
Deferred compensation plan liabilities	0	0
Earn-out liabilities	15.7	24.6
Total	15.7	24.6
Foreign currency forward contracts
Assets
Foreign currency forward contracts	3.1	1
Liabilities
Derivative liability	2.1	2.2
Foreign currency forward contracts | Level 1
Assets
Foreign currency forward contracts	0	0
Liabilities
Derivative liability	0	0
Foreign currency forward contracts | Level 2
Assets
Foreign currency forward contracts	3.1	1
Liabilities
Derivative liability	2.1	2.2
Foreign currency forward contracts | Level 3
Assets
Foreign currency forward contracts	0	0
Liabilities
Derivative liability	0	0
Interest rate swaps
Liabilities
Derivative liability	176.3	97.7
Interest rate swaps | Level 1
Liabilities
Derivative liability	0	0
Interest rate swaps | Level 2
Liabilities
Derivative liability	176.3	97.7
Interest rate swaps | Level 3
Liabilities
Derivative liability	$ 0	$ 0

Fair Value Measurements - Liabi

Fair Value Measurements - Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - Earn-out Liabilities - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 24.5	$ 25.1	$ 24.6	$ 38.3
Purchases/additions	0	0	2.7	0
Net change in fair value and other adjustments	(0.6)	(0.3)	0	(0.2)
Payments	(8.2)	(9.8)	(11.6)	(23.1)
Ending balance	$ 15.7	$ 15	$ 15.7	$ 15

Accounts Receivable Securitiz_2

Accounts Receivable Securitization - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019	Aug. 20, 2018	Mar. 08, 2017
Transfers and Servicing [Abstract]
Investment limit						$ 125,000,000	$ 100,000,000
Transferor's interests in transferred financial assets, receivables sold, percent					100.00%
Amount drawn on investment limit	$ 0		$ 0		$ 85,000,000
Proceeds from accounts receivable securitization			846,500,000	$ 837,700,000
Cash collection			856,800,000	848,200,000
Outstanding principal on receivables sold under securitization	177,500,000		177,500,000		$ 187,800,000
Accounts receivable securitization, program costs	$ 300,000	$ 300,000	$ 1,200,000	$ 1,100,000

Supplemental Cash Flow Inform_3

Supplemental Cash Flow Information - Reconciliation of Cash, Cash Equivalents, and Restricted Cash (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2018
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents	$ 916.8	$ 813.2	$ 400.1	$ 895.3
Total cash, cash equivalents and restricted cash shown in the statements of cash flows	995.1	872.3	469.5	965.4
Prepaid expenses and other current assets
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash recorded in other current assets	$ 78.3	$ 59.1	$ 69.4	$ 70.1

Supplemental Cash Flow Inform_4

Supplemental Cash Flow Information - Schedule of Non Cash Investing and Financing Activities (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash paid for:
Interest	$ 72.8	$ 115.3
Income taxes	42.4	48.7
Non-cash investing/financing activities:
Property and equipment acquired through capital leases	6.5	8
Deferred and contingent acquisition payment obligations	31.5	12.3
Increase in beneficial interest in a securitization	$ 13.8	$ 4.1