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Borrowings - Narrative (Details) |  |  |  |  |  |  | 12 Months Ended |  |
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Jun. 16, 2021 USD ($) | May 28, 2021 USD ($) | May 17, 2021 USD ($) | May 27, 2020 USD ($) | Apr. 29, 2020 USD ($) | Jun. 23, 2015 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | May 31, 2019 USD ($) | Jun. 13, 2016 USD ($)
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Less unaccreted debt discount |  |  |  |  |  |  | $ 1,400,000 | $ 900,000 |  |  |
Interest |  |  |  |  |  |  | 36,000,000.0 | 35,200,000 | $ 36,700,000 |  |
Credit facility, term |  |  |  |  |  | 5 years |  |  |  |  |
Balance outstanding |  |  |  |  |  |  | $ 1,200,100,000 | 1,050,200,000 |  |  |
For 12 Months in Connection with Certain Acquisitions |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Leverage ratio |  |  |  |  |  |  | 4.00 |  |  |  |
Line of Credit |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Current borrowing capacity |  |  |  |  |  | $ 700,000,000 |  |  |  |  |
Revolving facility, extension term |  |  |  |  |  | 1 year |  |  |  |  |
Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Current borrowing capacity |  |  |  |  |  |  |  |  |  | $ 800,000,000 |
Aggregate lending commitments |  |  |  |  |  |  |  |  |  | $ 400,000,000 |
Minimum |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Required percent for prepayment amount of aggregate principal amount |  |  |  |  |  |  |  |  |  |  | 5.00%
Minimum | Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Applicable leverage ratio |  |  |  |  |  |  | 0.00% |  |  |  |
Maximum | Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Applicable leverage ratio |  |  |  |  |  |  | 1.275% |  |  |  |
Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Balance outstanding |  |  |  |  |  |  | $ 0 |  |  |  |
Outstanding letters of credit |  |  |  |  |  |  | 7,200,000 |  |  |  |
Revolving facility, amount available to borrow |  |  |  |  |  |  | $ 792,800,000 |  |  |  |
Revolving Credit Facility | Minimum |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest coverage ratio |  |  |  |  |  |  | 3.0 |  |  |  |
Revolving Credit Facility | Maximum |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Leverage ratio |  |  |  |  |  |  | 3.50 |  |  |  |
Senior Notes | Maximum |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Limitation of outstanding principal of higher preference debt as percent of consolidated assets |  |  |  |  |  |  |  |  |  |  | 15.00%
Senior Notes | 4.20% Senior Notes, repaid in June 2021 |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  |  |  | 4.20% |  |  |  |
Extinguishment of debt |  | $ 350,000,000 | $ 350,000,000 |  |  |  |  |  |  |  |
Redemption premium |  | 6,700,000 | 6,700,000 |  |  |  |  |  |  |  |
Amount to be recognized from hedged transactions within 12 months, approximate | $ 1,300,000 |  |  |  |  |  |  |  |  |  |
Write off of deferred debt issuance cost |  |  | 100,000 |  |  |  |  |  |  |  |
Write off of deferred debt remaining discount |  |  | 100,000 |  |  |  |  |  |  |  |
Write-off deferred taxes |  |  | $ 400,000 |  |  |  |  |  |  |  |
Gain (loss) on extinguishment of debt |  |  |  |  |  |  | $ 8,600,000 |  |  |  |
Balance outstanding |  |  |  |  |  |  | $ 0 | 350,000,000.0 |  |  |
Senior Notes | 3.00% Senior Notes, due May 2030 |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  |  |  | 3.00% |  |  |  |
Proceeds from debt |  |  |  |  | $ 494,400,000 |  |  |  |  |  |
Less unaccreted debt discount |  |  |  |  | 900,000 |  |  |  |  |  |
Underwriting commission |  |  |  |  | (3,300,000) |  |  |  |  |  |
Offering expenses |  |  |  |  | $ (1,400,000) |  |  |  |  |  |
Redemption price, percentage |  |  |  |  | 101.00% |  |  |  |  |  |
Balance outstanding |  |  |  |  | $ 500,000,000 |  | $ 500,000,000.0 | 500,000,000.0 |  |  |
Senior Notes | 3.00% Senior Notes, due May 2030 | Minimum |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percent of outstanding amount owned for decision making |  |  |  |  | 25.00% |  |  |  |  |  |
Senior Notes | 2.625% Senior Notes, due 2031 |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  |  |  | 2.625% |  |  |  |
Debt instrument face amount |  | 500,000,000.0 |  |  |  |  |  |  |  |  |
Proceeds from debt |  | 494,700,000 |  |  |  |  |  |  |  |  |
Less unaccreted debt discount |  | 600,000 |  |  |  |  |  |  |  |  |
Underwriting commission |  | 3,300,000 |  |  |  |  |  |  |  |  |
Offering expenses |  | $ 1,400,000 |  |  |  |  |  |  |  |  |
Redemption price, percentage |  |  | 101.00% |  |  |  |  |  |  |  |
Senior Notes | 2.625% Senior Notes, due 2031 | Minimum |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percent of notes held |  |  |  |  |  |  | 25.00% |  |  |  |
Senior Notes | 3.20% Senior Notes, due June 2023 |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  |  |  | 3.20% |  |  |  | 3.20%
Debt instrument face amount |  |  |  |  |  |  |  |  |  |  | $ 100,000,000
Balance outstanding |  |  |  |  |  |  | $ 100,000,000.0 | 100,000,000.0 |  |  |
Senior Notes | 3.37% Senior Notes, due June 2025 |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  |  |  | 3.37% |  |  |  | 3.37%
Debt instrument face amount |  |  |  |  |  |  |  |  |  |  | $ 100,000,000
Balance outstanding |  |  |  |  |  |  | $ 100,000,000.0 | 100,000,000.0 |  |  |
Senior Notes | 4.50% Senior Notes, due December 2020 |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  |  |  | 4.50% |  |  |  |
Extinguishment of debt |  |  |  | $ 300,000,000 | $ 300,000,000 |  |  |  |  |  |
Redemption premium |  |  |  | 6,800,000 |  |  |  |  |  |  |
Amount to be recognized from hedged transactions within 12 months, approximate |  |  |  | 1,400,000 |  |  |  |  |  |  |
Write off of deferred debt issuance cost |  |  |  | 100,000 |  |  |  |  |  |  |
Write off of deferred debt remaining discount |  |  |  | 100,000 |  |  |  |  |  |  |
Gain (loss) on extinguishment of debt |  |  |  |  |  |  |  | $ 8,400,000 |  |  |
Interest |  |  |  | $ 6,100,000 |  |  |  |  |  |  |
Letters of Credit | Line of Credit |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Current borrowing capacity |  |  |  |  |  | $ 75,000,000 |  |  |  |  |
Swing line Loans | Line of Credit |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Current borrowing capacity |  |  |  |  |  | $ 50,000,000 |  |  |  |  |

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- Definition The excess of the (1) fair value of consideration transferred to the holders of a security in excess of (2) the carrying amount of the security reported on the registrant's balance sheet, which will be deducted from net earnings to derive net earnings available to common shareholders. This amount is generally an adjustment considered in the computation of earnings per share. + References No definition available. + Details
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- Definition Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.8) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 + Details
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