FAIR VALUE OF FINANCIAL INSTRUMENTS (Debt) (Detail) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Carrying Value	$ 968,632	$ 1,048,949
Estimated Fair Value	921,559	966,702
Total debt	968,000	1,047,500
Debt issuance costs, net	(1,175)	(1,326)
Unamortized interest rate swap proceeds	1,807	2,775
3.85% Senior notes due 2025
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Carrying Value	0	90,000
Estimated Fair Value	$ 0	89,876
Debt Instrument, Interest Rate, Stated Percentage	3.85%
4.24% Senior notes due 2026
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Carrying Value	$ 200,000	200,000
Estimated Fair Value	$ 199,157	196,059
Debt Instrument, Interest Rate, Stated Percentage	4.24%
4.05% Senior notes due 2028
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Carrying Value	$ 67,500	67,500
Estimated Fair Value	$ 66,569	64,733
Debt Instrument, Interest Rate, Stated Percentage	4.05%
4.11% Senior notes due 2028
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Carrying Value	$ 90,000	90,000
Estimated Fair Value	$ 88,479	85,784
Debt Instrument, Interest Rate, Stated Percentage	4.11%
3.10% Senior notes due 2030
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Carrying Value	$ 150,000	150,000
Estimated Fair Value	$ 138,224	131,386
Debt Instrument, Interest Rate, Stated Percentage	3.10%
3.20% Senior notes due 2032
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Carrying Value	$ 150,000	150,000
Estimated Fair Value	$ 132,719	125,426
Debt Instrument, Interest Rate, Stated Percentage	3.20%
4.49% Senior notes due 2032
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Carrying Value	$ 200,000	200,000
Estimated Fair Value	$ 191,283	182,451
Debt Instrument, Interest Rate, Stated Percentage	4.49%
4.64% Senior notes due 2034
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Carrying Value	$ 100,000	100,000
Estimated Fair Value	$ 93,996	89,538
Debt Instrument, Interest Rate, Stated Percentage	4.64%
Borrowings under Revolving Credit Agreement due 2027
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Carrying Value	$ 10,500	0
Estimated Fair Value	10,500	0
Long-term Debt, Gross
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Estimated Fair Value	$ 920,927	$ 965,253

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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

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

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Amount as of the balance sheet date of the unamortized adjustment to the carrying value of an interest-bearing hedged item made under an effective interest rate fair value hedge that is amortized upon discontinuation of the interest rate fair value hedge.

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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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