Fair Value of Financial Instruments (Details) $ in Millions		3 Months Ended	12 Months Ended
	Jul. 15, 2022 USD ($)	Sep. 30, 2022 USD ($) Instruments	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) Instruments	Dec. 31, 2021 USD ($)	Jul. 26, 2023 USD ($)	Jun. 30, 2023 derivative_instrument	Oct. 03, 2022 USD ($)	Jul. 21, 2022 USD ($)	Jul. 12, 2022 USD ($) Instruments	Mar. 31, 2022 Instruments	Jun. 30, 2021 derivative_instrument	Mar. 31, 2019 derivative_instrument
Debt Securities, Available-for-sale [Line Items]
Other operating income (expense)			$ (54.2)	$ (25.3)	$ 20.0
Foreign currency transaction gains (losses)			(85.1)	(68.7)	(30.5)
Interest expense			(203.8)	(138.8)	(112.2)
Foreign currency derivative instrument gains (losses)			21.3	42.0	24.2
Cash proceeds from settlement of cross currency swap			0.0	64.3	0.0
Contingent consideration derecognition gain			(6.2)	0.0	0.0
Contingent consideration payment			11.1	2.8	4.0
G4S
Debt Securities, Available-for-sale [Line Items]
Contingent consideration			22.0
Contingent consideration payment					3.2
NoteMachine
Debt Securities, Available-for-sale [Line Items]
Contingent consideration								$ 14.8
Contingent consideration payment			10.3
NoteMachine | ATM Cash Withdrawal Interchange Fees
Debt Securities, Available-for-sale [Line Items]
Contingent consideration								4.3
Contingent consideration derecognition gain			4.8
NoteMachine | Post-Acquisition Collection of ATM Tax Rate Rebates
Debt Securities, Available-for-sale [Line Items]
Contingent consideration								$ 10.5
Contingent consideration payment			10.0
Not Designated as Hedging Instrument | Foreign exchange contract
Debt Securities, Available-for-sale [Line Items]
Notional value of nonderivative instrument			$ 678.0
Weighted average maturity			1 month
Not Designated as Hedging Instrument | Foreign exchange contract | Other operating income (expense)
Debt Securities, Available-for-sale [Line Items]
Gain (loss) on foreign currency contract			$ 21.3	42.0	24.2
Designated as Hedging Instrument | Currency Swap
Debt Securities, Available-for-sale [Line Items]
Other operating income (expense)			(7.9)	(8.9)	0.2
Foreign currency transaction gains (losses)			7.9	8.9	(0.2)
Interest expense			(0.8)	(1.3)	(1.3)
Foreign currency derivative instrument gains (losses)			$ (8.7)	$ (10.2)	(1.1)
Designated as Hedging Instrument | $400 million interest rate swap
Debt Securities, Available-for-sale [Line Items]
Weighted average maturity			1 month 6 days
Number of instruments held | derivative_instrument													10
Notional value of derivative instrument			$ 400.0
Designated as Hedging Instrument | $200 million interest rate swap
Debt Securities, Available-for-sale [Line Items]
Number of instruments held | Instruments											4
Designated as Hedging Instrument | $200 million interest rate swap | Gains (losses) on cash flow hedges
Debt Securities, Available-for-sale [Line Items]
Cumulative net gain in AOCI		$ 9.2
Designated as Hedging Instrument | $200 million interest rate swap amended
Debt Securities, Available-for-sale [Line Items]
Weighted average maturity			1 year 9 months 18 days
Number of instruments held | Instruments		3
Notional value of derivative instrument			$ 200.0
Designated as Hedging Instrument | $175 million interest rate swap
Debt Securities, Available-for-sale [Line Items]
Weighted average maturity			1 year 9 months 18 days
Number of instruments held | Instruments				2
Notional value of derivative instrument			$ 175.0
Designated as Hedging Instrument | $400 million interest rate swap 2023
Debt Securities, Available-for-sale [Line Items]
Weighted average maturity			1 year 9 months 18 days
Number of instruments held | derivative_instrument							8
Notional value of derivative instrument			$ 400.0
Designated as Hedging Instrument | $400 million cross currency swap
Debt Securities, Available-for-sale [Line Items]
Number of instruments held | derivative_instrument												10
Cash proceeds from settlement of cross currency swap	$ 67.0
Designated as Hedging Instrument | $400 million cross currency swap 2022
Debt Securities, Available-for-sale [Line Items]
Number of instruments held | Instruments										9
Notional value of derivative instrument			$ 400.0							$ 400.0
Designated as Hedging Instrument | $215 million cross currency swap
Debt Securities, Available-for-sale [Line Items]
Weighted average maturity			2 years
Notional value of derivative instrument										215.0
Designated as Hedging Instrument | $185 million cross currency swap
Debt Securities, Available-for-sale [Line Items]
Weighted average maturity			6 years 3 months 18 days
Notional value of derivative instrument										$ 185.0
Designated as Hedging Instrument | $215 million cross currency swap II
Debt Securities, Available-for-sale [Line Items]
Notional value of derivative instrument						$ 215.0
Designated as Hedging Instrument | $55 million foreign exchange forward swap
Debt Securities, Available-for-sale [Line Items]
Weighted average maturity			10 months 24 days
Notional value of derivative instrument			$ 55.0
Level 2 | Not Designated as Hedging Instrument | Foreign exchange contract
Debt Securities, Available-for-sale [Line Items]
Fair value of derivative instruments, net			1.1	$ 7.0
Level 2 | Not Designated as Hedging Instrument | Foreign exchange contract | Prepaid expenses and other
Debt Securities, Available-for-sale [Line Items]
Fair value of derivative instruments, asset			8.7	3.5
Level 2 | Not Designated as Hedging Instrument | Foreign exchange contract | Accrued Liabilities
Debt Securities, Available-for-sale [Line Items]
Fair value of derivative instruments, liability			9.8	10.5
Level 2 | Designated as Hedging Instrument
Debt Securities, Available-for-sale [Line Items]
Net derivative instrument (gains) losses included in interest expense			(25.1)	(3.6)	5.7
Level 2 | Designated as Hedging Instrument | Currency Swap
Debt Securities, Available-for-sale [Line Items]
Fair value of contract, asset position				14.6
Level 2 | Designated as Hedging Instrument | $400 million interest rate swap
Debt Securities, Available-for-sale [Line Items]
Fair value of swap, asset position			1.1	10.0
Net derivative instrument (gains) losses included in interest expense			(19.9)	2.2	9.8
Level 2 | Designated as Hedging Instrument | $400 million interest rate swap | Prepaid expenses and other
Debt Securities, Available-for-sale [Line Items]
Fair value of swap, asset position				9.3
Level 2 | Designated as Hedging Instrument | $400 million interest rate swap | Other Assets
Debt Securities, Available-for-sale [Line Items]
Fair value of swap, asset position				0.7
Level 2 | Designated as Hedging Instrument | $200 million interest rate swap amended
Debt Securities, Available-for-sale [Line Items]
Fair value of swap, asset position			12.2	16.4					$ 9.2
Level 2 | Designated as Hedging Instrument | $200 million interest rate swap amended | Prepaid expenses and other
Debt Securities, Available-for-sale [Line Items]
Fair value of swap, asset position			5.8	6.0
Level 2 | Designated as Hedging Instrument | $200 million interest rate swap amended | Other Assets
Debt Securities, Available-for-sale [Line Items]
Fair value of swap, asset position			6.4	10.4
Level 2 | Designated as Hedging Instrument | $175 million interest rate swap
Debt Securities, Available-for-sale [Line Items]
Fair value of swap, net			0.1	1.0
Level 2 | Designated as Hedging Instrument | $175 million interest rate swap | Prepaid expenses and other
Debt Securities, Available-for-sale [Line Items]
Fair value of swap, asset position			1.9	2.0
Level 2 | Designated as Hedging Instrument | $175 million interest rate swap | Other Liabilities
Debt Securities, Available-for-sale [Line Items]
Fair value of swap, liability position			1.8	1.0
Level 2 | Designated as Hedging Instrument | $400 million interest rate swap 2023
Debt Securities, Available-for-sale [Line Items]
Fair value of swap, asset position			5.7
Level 2 | Designated as Hedging Instrument | $400 million interest rate swap 2023 | Prepaid expenses and other
Debt Securities, Available-for-sale [Line Items]
Fair value of swap, asset position			5.4
Level 2 | Designated as Hedging Instrument | $400 million interest rate swap 2023 | Other Assets
Debt Securities, Available-for-sale [Line Items]
Fair value of swap, asset position			0.3
Level 2 | Designated as Hedging Instrument | $400 million cross currency swap
Debt Securities, Available-for-sale [Line Items]
Net derivative instrument (gains) losses included in interest expense				(5.8)	$ (4.1)
Level 2 | Designated as Hedging Instrument | $400 million cross currency swap 2022
Debt Securities, Available-for-sale [Line Items]
Fair value of contract, liability position			34.6	11.7
Net derivative instrument (gains) losses included in interest expense			(5.2)
Level 2 | Designated as Hedging Instrument | $400 million cross currency swap 2022 | Prepaid expenses and other
Debt Securities, Available-for-sale [Line Items]
Fair value of contract, liability position			5.6
Level 2 | Designated as Hedging Instrument | $400 million cross currency swap 2022 | Other Liabilities
Debt Securities, Available-for-sale [Line Items]
Fair value of contract, liability position			40.2	17.3
Level 2 | Designated as Hedging Instrument | $215 million cross currency swap II | Other Assets
Debt Securities, Available-for-sale [Line Items]
Fair value of contract, asset position			0.1
Level 2 | Designated as Hedging Instrument | $55 million foreign exchange forward swap | Prepaid expenses and other
Debt Securities, Available-for-sale [Line Items]
Fair value of contract, asset position			0.1
Six hundred million senior unsecured notes
Debt Securities, Available-for-sale [Line Items]
Carrying value			600.0	600.0
Six hundred million senior unsecured notes | Level 3
Debt Securities, Available-for-sale [Line Items]
Fair value			554.6	528.7
Four hundred million senior unsecured notes
Debt Securities, Available-for-sale [Line Items]
Carrying value			400.0	400.0
Four hundred million senior unsecured notes | Level 3
Debt Securities, Available-for-sale [Line Items]
Fair value			$ 382.0	$ 369.0