Share-Based Compensation - Deferred Compensation Plan (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
SERP expense	$ 4,768	$ 4,569
SERP
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
SERP expense	289	324
Unrealized (loss) gain recorded in SERP liability account	$ (10,164)	$ 4,207