Note 17 - Stockholders' Equity (Details Textual) - USD ($) $ in Thousands		3 Months Ended
	Feb. 21, 2023	Mar. 31, 2024	Mar. 30, 2024	Mar. 31, 2023	Dec. 31, 2023	Dec. 31, 2022
Equity, Attributable to Parent		$ 2,778,072	$ 2,778,072	$ 2,542,339	$ 2,736,575	$ 2,474,040
Stockholders' Equity, Period Increase (Decrease)		41,500
Net Income (Loss) Attributable to Parent		71,435	71,435	96,007
Share-Based Payment Arrangement, Expense		900
Proceeds from Issuance of Common Stock, Dividend Reinvestment Plan		744		918
Treasury Stock, Value, Acquired, Cost Method	$ 16,600	8		16,736
Dividends, Common Stock, Cash		24,700	24,708	24,605
Other Comprehensive Income (Loss), Net of Tax		(6,863)		11,218
Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation			$ 24	14
Restricted Stock Units (RSUs) [Member]
Share-Based Payment Arrangement, Expense		900		$ 1,500
Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation		$ 24