Deposits Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deposits [Abstract]
Interest checking	$ 7,386,269	$ 5,999,245
Money market	11,064,870	7,658,049
Savings	630,653	562,826
Time deposits $250,000 and under	885,938	994,197
Time deposits over $250,000	486,894	532,573
Total interest-bearing deposits	$ 20,454,624	$ 15,746,890