Securities (Unrealized Loss NOT deemed to be OTTI) (Details) $ in Thousands	Sep. 30, 2020 USD ($) holding	Dec. 31, 2019 USD ($) holding
Gain (Loss) on Securities [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 29,158
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	1,021
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(412)
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ (552)
Summary of gross unrealized losses and fair value of investments
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | holding	6
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 28,137
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(140)
Agency mortgage-backed securities
Gain (Loss) on Securities [Line Items]
Available for Sale and Held to Maturity Securities in Unrealized Loss Positions Qualitative Disclosure Number of Positions | holding		12
Debt Securities, Available-for-sale, Unrealized Loss Position	399
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ (1)
Summary of gross unrealized losses and fair value of investments
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | holding	2
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 399
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(1)
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Less than Twelve Months Fair Value		$ 34,009
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for less than 12 months		(59)
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Twelve Months or Longer Fair Value		243
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for more than 12 months		(2)
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Fair Value		34,252
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Aggregate Loss		$ (61)
Agency Collateralized Mortgage Obligations [Member]
Gain (Loss) on Securities [Line Items]
Available for Sale and Held to Maturity Securities in Unrealized Loss Positions Qualitative Disclosure Number of Positions | holding		17
Debt Securities, Available-for-sale, Unrealized Loss Position	27,269
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ (119)
Summary of gross unrealized losses and fair value of investments
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | holding	2
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 27,269
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(119)
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Less than Twelve Months Fair Value		$ 48,476
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for less than 12 months		(215)
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Twelve Months or Longer Fair Value		37,382
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for more than 12 months		(653)
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Fair Value		85,858
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Aggregate Loss		$ (868)
Single issuer trust preferred securities issued by banks and insurers
Gain (Loss) on Securities [Line Items]
Available for Sale and Held to Maturity Securities in Unrealized Loss Positions Qualitative Disclosure Number of Positions | holding		1
Debt Securities, Available-for-sale, Unrealized Loss Position	469
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ (20)
Summary of gross unrealized losses and fair value of investments
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | holding	1
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 469
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(20)
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Less than Twelve Months Fair Value		$ 0
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for less than 12 months		0
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Twelve Months or Longer Fair Value		1,490
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for more than 12 months		(10)
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Fair Value		1,490
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Aggregate Loss		$ (10)
Pooled trust preferred securities issued by banks and insurers
Gain (Loss) on Securities [Line Items]
Available for Sale and Held to Maturity Securities in Unrealized Loss Positions Qualitative Disclosure Number of Positions | holding		1
Debt Securities, Available-for-sale, Unrealized Loss Position	1,021
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	1,021
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(412)
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ (412)
Summary of gross unrealized losses and fair value of investments
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | holding	1
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ 0
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Less than Twelve Months Fair Value		$ 0
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for less than 12 months		0
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Twelve Months or Longer Fair Value		1,114
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for more than 12 months		(374)
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Fair Value		1,114
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Aggregate Loss		$ (374)
Small Business Administration Pooled Securities [Member]
Gain (Loss) on Securities [Line Items]
Available for Sale and Held to Maturity Securities in Unrealized Loss Positions Qualitative Disclosure Number of Positions | holding		1
Summary of gross unrealized losses and fair value of investments
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Less than Twelve Months Fair Value		$ 7,349
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for less than 12 months		(55)
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Twelve Months or Longer Fair Value		0
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for more than 12 months		0
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Fair Value		7,349
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Aggregate Loss		$ (55)
Equity Securities [Member]
Gain (Loss) on Securities [Line Items]
Available for Sale and Held to Maturity Securities in Unrealized Loss Positions Qualitative Disclosure Number of Positions | holding		32
Summary of gross unrealized losses and fair value of investments
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Less than Twelve Months Fair Value		$ 89,834
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for less than 12 months		(329)
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Twelve Months or Longer Fair Value		40,229
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for more than 12 months		(1,039)
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Fair Value		130,063
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Aggregate Loss		$ (1,368)