Comprehensive Income Changes in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Accumulated Other Comprehensive Income, Changes [Roll Forward]
Accumulated other comprehensive income (loss), balance beg. of period	$ (3,261)
Net current period other comprehensive income (loss), net of tax	(15,539)	$ 1,837
Accumulated other comprehensive income (loss), balance end of period	(18,800)
Unrealized gains (losses) on securities [Member]
Accumulated Other Comprehensive Income, Changes [Roll Forward]
Accumulated other comprehensive income (loss), balance beg. of period	1,057	(8,123)
Other comprehensive income (loss) before reclassifications, net of tax	144	3,688
Amounts reclassified from accumulated other comprehensive income, net of tax.	5	66
Net current period other comprehensive income (loss), net of tax	149	3,754
Accumulated other comprehensive income (loss), balance end of period	1,206	(4,369)
Unrealized gains (losses) on derivatives [Member]
Accumulated Other Comprehensive Income, Changes [Roll Forward]
Accumulated other comprehensive income (loss), balance beg. of period	(4,318)	1,309
Other comprehensive income (loss) before reclassifications, net of tax	(15,942)	(1,831)
Amounts reclassified from accumulated other comprehensive income, net of tax.	254	(86)
Net current period other comprehensive income (loss), net of tax	(15,688)	(1,917)
Accumulated other comprehensive income (loss), balance end of period	(20,006)	(608)
Accumulated other comprehensive income (loss) [Member]
Accumulated Other Comprehensive Income, Changes [Roll Forward]
Accumulated other comprehensive income (loss), balance beg. of period	(3,261)	(6,814)
Other comprehensive income (loss) before reclassifications, net of tax	(15,798)	1,857
Amounts reclassified from accumulated other comprehensive income, net of tax.	259	(20)
Net current period other comprehensive income (loss), net of tax	(15,539)	1,837
Accumulated other comprehensive income (loss), balance end of period	$ (18,800)	$ (4,977)

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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Amount after tax, before reclassification adjustments of other comprehensive income (loss).

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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