States whether the entity was in compliance with the debt covenants throughout the reporting period, and describes facts and circumstances of any compliance failure.

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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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Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

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Amount of unamortized debt discount (premium) and debt issuance costs.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

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Long-Term Debt (Narrative) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2022	Dec. 31, 2021	Mar. 09, 2022
Debt discount and issuance costs	$ 58,415	$ 55,451
Credit Agreement [Member] \| Revolving Credit Facility [Member]
Commitment - rate applicable	0.09%	0.09%
Credit Agreement [Member] \| Letter of Credit [Member]
Letter of credit	$ 43,314	$ 112,281
Other Facilities Not Affiliated With Credit Agreement [Member] \| Letter of Credit [Member]
Letter of credit	$ 84,617
Senior Notes [Member]
Debt Instrument, Covenant Compliance	As of June 30, 2022, the Company was in compliance with all applicable covenants in the Indenture.
Senior Notes [Member] \| Minimum [Member]
Percentage of principal amount redeemed	25.00%
Senior Notes [Member] \| Senior Notes due 2029 [Member]
Interest rate	3.50%	3.50%
Senior Notes [Member] \| Senior Notes due 2030 [Member]
Interest rate	2.60%	2.60%
Senior Notes [Member] \| New Senior Note due 2032 [Member]
Aggregate principal amount			$ 500,000
Interest rate	3.20%		3.20%
Maturity date	Jun. 01, 2032
Debt instrument, redemption price, percentage	100.00%
Debt instrument, redemption period	Mar. 01, 2032
Senior Notes [Member] \| New Senior Note due 2032 [Member] \| Maximum [Member]
Debt instrument, redemption price, percentage	101.00%
Senior Notes [Member] \| Senior Notes due 2032 [Member]
Interest rate	2.20%	2.20%
Senior Notes [Member] \| Senior Notes due 2052 [Member]
Interest rate	2.95%	2.95%
Senior Notes [Member] \| Senior Notes due 2050 [Member]
Interest rate	3.05%	3.05%