Fair Value Measurements - Estimated Fair Value of Senior Notes (Details) - USD ($)	Jun. 30, 2022	Dec. 31, 2021	Aug. 31, 2021	Jan. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	$ 1,482,174,000	$ 1,481,781,000
Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	1,482,174,000	1,481,781,000
Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	1,119,626,000	1,623,351,000
Senior Notes 3.850% Due January 2030
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, face amount	$ 300,000,000
Interest rate, stated percentage	3.85%
Carrying Amount	$ 297,821,000	297,699,000
Senior Notes 3.850% Due January 2030 | Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	297,821,000	297,699,000
Senior Notes 3.850% Due January 2030 | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	251,498,000	319,057,000
Senior Notes 2.500% Due January 2031
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, face amount	$ 350,000,000			$ 350,000,000
Interest rate, stated percentage	2.50%			2.50%
Carrying Amount	$ 347,269,000	347,126,000
Senior Notes 2.500% Due January 2031 | Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	347,269,000	347,126,000
Senior Notes 2.500% Due January 2031 | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	257,216,000	339,185,000
Senior Notes 6.000 % Due January 2043
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, face amount	$ 500,000,000
Interest rate, stated percentage	6.00%
Carrying Amount	$ 491,010,000	490,903,000
Senior Notes 6.000 % Due January 2043 | Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	491,010,000	490,903,000
Senior Notes 6.000 % Due January 2043 | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	410,815,000	628,092,000
Senior Notes 3.966% Due August 2061
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, face amount	$ 350,000,000		$ 350,000,000
Interest rate, stated percentage	3.966%		3.966%
Carrying Amount	$ 346,074,000	346,053,000
Senior Notes 3.966% Due August 2061 | Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying Amount	346,074,000	346,053,000
Senior Notes 3.966% Due August 2061 | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 200,097,000	$ 337,017,000