Condensed Financial Information (Parent Company Only) - Condensed Statements of Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Condensed Statement of Income Captions [Line Items]
NET INCOME	$ 271,156	$ 254,904	$ 238,167
OTHER COMPREHENSIVE INCOME (LOSS)
COMPREHENSIVE INCOME	200,885	293,739	286,432
Parent Company
Condensed Statement of Income Captions [Line Items]
NET INCOME	271,156	254,904	238,167
OTHER COMPREHENSIVE INCOME (LOSS)
Equity in other comprehensive income (loss) of subsidiaries	(70,271)	38,835	48,265
COMPREHENSIVE INCOME	$ 200,885	$ 293,739	$ 286,432