Not-for-Profit Subsidiary Activities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Not-for-Profit Subsidiary Activities
Interest Income	$ 1,717	$ 1,884	$ 4,116	$ 3,695
MPC
Not-for-Profit Subsidiary Activities
Cash held in checking account	377		377		$ 304
Cash that carries permanent donor restrictions	1,700		1,700		1,700
Net assets	2,100		2,100
Net assets permanently restricted by donors	1,700		1,700
Interest Income	20	$ 20	20	$ 20
Net assets that are unrestricted by donors	326		326		340
MPC \| Board
Not-for-Profit Subsidiary Activities
Cash held in checking account	$ 0		$ 0		$ 0

Represents the total of interest and dividend income, including any amortization and accretion (as applicable) of discounts and premiums, earned from (1) loans and leases whether held-for-sale or held-in-portfolio; (2) investment securities; (3) federal funds sold; (4) securities purchased under agreements to resell; (5) investments in banker's acceptances, commercial paper, or certificates of deposit; (6) dividend income; or (7) other investments not otherwise specified herein.