Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount, after accumulated amortization, of debt discount.

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Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

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Short-Term Borrowings and Long-Term Debt - Senior Notes (Details) - USD ($)			1 Months Ended
	Feb. 02, 2021	Jun. 05, 2020	Jan. 31, 2015	Mar. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Long-term debt				$ 1,338,183,000	$ 843,628,000
Senior Notes \| 3.125% Senior Notes
Debt Instrument [Line Items]
Debt issuance, principal value		$ 500,000,000		$ 500,000,000
Interest rate on senior notes		3.125%		3.125%
Net proceeds from debt		$ 495,400,000
Long-term debt				$ 495,387,000	$ 495,280,000
Debt instrument, unamortized discount		300,000
Debt issuance costs				4,300,000
Senior Notes \| 3.50% Senior Notes
Debt Instrument [Line Items]
Debt issuance, principal value			$ 350,000,000	$ 350,000,000
Interest rate on senior notes			3.50%	3.50%	3.50%
Net proceeds from debt			$ 346,400,000
Long-term debt				$ 348,441,000	$ 348,348,000
Debt instrument, unamortized discount				100,000
Debt issuance costs				$ 1,500,000
Senior Notes \| 1.800% Senior Notes
Debt Instrument [Line Items]
Debt issuance, principal value	$ 500,000,000
Interest rate on senior notes	1.80%			1.80%
Net proceeds from debt	$ 494,300,000
Long-term debt				$ 494,355,000	$ 0
Debt instrument, unamortized discount		$ 1,600,000
Debt issuance costs				$ 4,000,000.0