Additional Cash Flow Information - Additional Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Other Significant Noncash Transactions [Line Items]
Interest paid	$ 182,541	$ 122,801	$ 39,384
Income taxes paid	51,999	25,718	35,770
Right-of-use lease assets obtained in exchange for lessee operating lease liabilities (adoption of ASU 2016-02)	32,757
Transfers of held-to-maturity to available-for-sale securities	216,373	0	0
Transfers of loans to other assets held for sale	259,939	0	0
Transfers of deposits to other liabilities held for sale	159,853	0	0
Transfers of loans to foreclosed assets held for sale
Other Significant Noncash Transactions [Line Items]
Real estate transferred	4,760	16,858	6,983
Transfers of premises to foreclosed assets and other real estate owned
Other Significant Noncash Transactions [Line Items]
Real estate transferred	647	3,690	5,422
Transfers of premises held for sale to foreclosed assets and other real estate owned
Other Significant Noncash Transactions [Line Items]
Real estate transferred	$ 0	$ 0	$ 3,188

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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.

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