Employee Benefit Plans - Target Plan Asset Allocation (Details)	Jun. 30, 2021
Defined Benefit Plan Disclosure
Target Plan Asset Allocations	100.00%
U.S. large cap equity securities
Defined Benefit Plan Disclosure
Target Plan Asset Allocations	38.70%
U.S. small cap equity securities
Defined Benefit Plan Disclosure
Target Plan Asset Allocations	3.20%
International equity securities
Defined Benefit Plan Disclosure
Target Plan Asset Allocations	22.30%
Debt securities
Defined Benefit Plan Disclosure
Target Plan Asset Allocations	30.20%
Real estate
Defined Benefit Plan Disclosure
Target Plan Asset Allocations	5.60%