CONSOLIDATED STATEMENTS OF INCOME (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Interest expense	$ 2,976	$ 3,424	$ 6,276	$ 7,084
Gain (loss) on securities	2,842	2,006	2,812	3,664
Income tax expense (benefit)	16,481	7,417	31,814	13,326
Reclassification out of Accumulated Other Comprehensive Income (Loss) | Accumulated Net Gain (Loss) from Derivatives
Interest expense	(461)	(423)	(1,058)	(613)
Reclassification out of Accumulated Other Comprehensive Income (Loss) | Accumulated Net Unrealized Investment Gain (Loss)
Gain (loss) on securities	2,842	2,006	2,812	3,664
Reclassification out of Accumulated Other Comprehensive Income (Loss) | Accumulated Other Comprehensive Income (Loss)
Income tax expense (benefit)	$ 834	$ 614	$ 977	$ 1,080