Consolidated Statements of Changes in Stockholders' Equity - USD ($)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Common stock, outstanding (in shares)		40,232,000
Stockholders' Equity Attributable to Parent	$ 639,470,000	$ 40,000	$ 519,579,000	$ 133,870,000	$ (14,019,000)
Balance (in shares) at Dec. 31, 2020		40,232,000
Balance at Dec. 31, 2020	639,470,000	$ 40,000	519,579,000	133,870,000	(14,019,000)
Net income	650,624,000	0	0	650,624,000	0
Foreign currency translation	(4,663,000)	0	0	0	(4,663,000)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	(3,733,000)
Unrealized (losses) gains on interest rate swaps, net of the change in taxes of $2,074, $(7,802) and $(3,733)	11,198,000	$ 0	0	0	11,198,000
Repurchases of common stock, net of retirements (in shares)		(360,000)
Repurchases of common stock, net of retirements	(138,039,000)	$ 0	0	(138,039,000)	0
Share-based compensation	15,187,000	$ 0	15,187,000	0	0
Issuance of stock under share-based compensation plans (in shares)		321,000
Issuance of stock under share-based compensation plans	17,197,000	$ 0	17,197,000	0	0
Declaration of cash dividends	(119,581,000)	$ 0	0	(119,581,000)	0
Balance (in shares) at Dec. 31, 2021		40,193,000
Balance at Dec. 31, 2021	1,071,393,000	$ 40,000	551,963,000	526,874,000	(7,484,000)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net income	650,624,000	0	0	650,624,000	0
Foreign currency translation adjustments	(4,663,000)	0	0	0	(4,663,000)
Unrealized (losses) gains on interest rate swaps, net of the change in taxes of $2,074, $(7,802) and $(3,733)	11,198,000	$ 0	0	0	11,198,000
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	(3,733,000)
Stock Repurchased and Retired During Period, Shares		360,000
Stock Repurchased and Retired During Period, Value	138,039,000	$ 0	0	138,039,000	0
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	15,187,000	$ 0	15,187,000	0	0
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures		321,000
Issuance of stock under share-based compensation plans	17,197,000	$ 0	17,197,000	0	0
Dividends, Common Stock, Cash	119,581,000	$ 0	0	119,581,000	0
Common stock, outstanding (in shares)		40,193,000
Stockholders' Equity Attributable to Parent	1,071,393,000	$ 40,000	551,963,000	526,874,000	(7,484,000)
Net income	748,462,000	0	0	748,462,000	0
Foreign currency translation	(10,028,000)	0	0	0	(10,028,000)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	(7,802,000)
Unrealized (losses) gains on interest rate swaps, net of the change in taxes of $2,074, $(7,802) and $(3,733)	23,407,000	$ 0	0	0	23,407,000
Repurchases of common stock, net of retirements (in shares)		(1,234,000)
Repurchases of common stock, net of retirements	(471,229,000)	$ 1,000	0	(471,228,000)	0
Share-based compensation	14,879,000	$ 0	14,879,000	0	0
Issuance of stock under share-based compensation plans (in shares)		110,000
Issuance of stock under share-based compensation plans	8,934,000	$ 0	8,934,000	0	0
Declaration of cash dividends	$ (150,624,000)	$ 0	0	(150,624,000)	0
Balance (in shares) at Dec. 31, 2022	39,069,419	39,069,000
Balance at Dec. 31, 2022	$ 1,235,194,000	$ 39,000	575,776,000	653,484,000	5,895,000
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net income	748,462,000	0	0	748,462,000	0
Foreign currency translation adjustments	(10,028,000)	0	0	0	(10,028,000)
Unrealized (losses) gains on interest rate swaps, net of the change in taxes of $2,074, $(7,802) and $(3,733)	23,407,000	$ 0	0	0	23,407,000
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	(7,802,000)
Stock Repurchased and Retired During Period, Shares		1,234,000
Stock Repurchased and Retired During Period, Value	471,229,000	$ (1,000)	0	471,228,000	0
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	14,879,000	$ 0	14,879,000	0	0
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures		110,000
Issuance of stock under share-based compensation plans	8,934,000	$ 0	8,934,000	0	0
Dividends, Common Stock, Cash	$ 150,624,000	$ 0	0	150,624,000	0
Common stock, outstanding (in shares)	39,069,419	39,069,000
Stockholders' Equity Attributable to Parent	$ 1,235,194,000	$ 39,000	575,776,000	653,484,000	5,895,000
Net income	523,229,000	0	0	523,229,000	0
Foreign currency translation	6,909,000	0	0	0
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	2,074,000
Unrealized (losses) gains on interest rate swaps, net of the change in taxes of $2,074, $(7,802) and $(3,733)	(6,222,000)	$ 0		0	(6,222,000)
Repurchases of common stock, net of retirements (in shares)		(862,000)
Repurchases of common stock, net of retirements	(309,263,000)	$ 1,000	0	(309,262,000)	0
Share-based compensation	19,582,000	$ 0	19,582,000	0	0
Issuance of stock under share-based compensation plans (in shares)		148,000
Issuance of stock under share-based compensation plans	10,819,000	$ 0	10,819,000	0	0
Declaration of cash dividends	$ (167,461,000)	$ 0	0	(167,461,000)	0
Balance (in shares) at Dec. 31, 2023	38,354,829	38,355,000
Balance at Dec. 31, 2023	$ 1,312,787,000	$ 38,000	606,177,000	699,990,000	6,582,000
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net income	523,229,000	0	0	523,229,000	0
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax					6,909,000
Foreign currency translation adjustments	6,909,000	0	0	0
Unrealized (losses) gains on interest rate swaps, net of the change in taxes of $2,074, $(7,802) and $(3,733)	(6,222,000)	$ 0		0	(6,222,000)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	2,074,000
Stock Repurchased and Retired During Period, Shares		862,000
Stock Repurchased and Retired During Period, Value	309,263,000	$ (1,000)	0	309,262,000	0
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	19,582,000	$ 0	19,582,000	0	0
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures		148,000
Issuance of stock under share-based compensation plans	10,819,000	$ 0	10,819,000	0	0
Dividends, Common Stock, Cash	$ 167,461,000	$ 0	0	167,461,000	0
Common stock, outstanding (in shares)	38,354,829	38,355,000
Stockholders' Equity Attributable to Parent	$ 1,312,787,000	$ 38,000	$ 606,177,000	$ 699,990,000	$ 6,582,000