Derivative Financial Instruments (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2019 USD ($) contract	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($) contract	Sep. 30, 2018 USD ($)	Dec. 31, 2018 USD ($)
Derivative [Line Items]
Maximum Length of Time Hedged in Interest Rate Cash Flow Hedge			10 years
Reclassifications into Interest expense on cash flow hedge	$ 30,000	$ 2,000	$ 183,000	$ 18,000
Cash pledged to Peoples from counterparties	0		0		$ 130,000
Fair Value of Interest Rate Swaps	$ 14,200,000		$ 14,200,000		2,500,000
Interest Rate Swap [Member]
Derivative [Line Items]
Derivative, Number of Instruments Held | contract	16		16
Derivative, Notional Amount	$ 150,000,000		$ 150,000,000		110,000,000
Interest Rate Contract [Member]
Derivative [Line Items]
Derivative, Notional Amount	590,000,000		590,000,000		453,400,000
Fair Value of Interest Rate Swaps	14,197,000		14,197,000		2,451,000
Other assets | Interest Rate Swap [Member]
Derivative [Line Items]
Fair Value of Interest Rate Swaps	105,000		105,000		2,093,000
Liability [Member] | Interest Rate Swap [Member]
Derivative [Line Items]
Fair Value of Interest Rate Swaps	6,026,000		6,026,000		1,111,000
Interest Rate Swap [Member]
Derivative [Line Items]
Restricted Cash	$ 21,200,000		$ 21,200,000		$ 0