Repurchase Agreements (Details) - USD ($) $ in Thousands		Dec. 31, 2015	Dec. 31, 2014
Assets Sold under Agreements to Repurchase [Line Items]
Certificates of Deposit, at Carrying Value		$ 914	$ 0
Securities Sold under Agreements to Repurchase	[1]	215,041	187,855
Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	[1]	184,989	157,758
Up to 30 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	[1]	0	0
30 - 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	[1]	0	0
Greater than 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	[1]	30,052	30,097
Commercial Borrower
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		30,052	30,097
Commercial Borrower | Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Commercial Borrower | Up to 30 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Commercial Borrower | 30 - 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Commercial Borrower | Greater than 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		30,052	30,097
Commercial Borrower | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		22,016	20,626
Commercial Borrower | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member] | Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Commercial Borrower | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member] | Up to 30 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Commercial Borrower | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member] | 30 - 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Commercial Borrower | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member] | Greater than 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		22,016	20,626
Commercial Borrower | Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		8,036	9,471
Commercial Borrower | Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member] | Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Commercial Borrower | Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member] | Up to 30 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Commercial Borrower | Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member] | 30 - 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Commercial Borrower | Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member] | Greater than 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		8,036	9,471
Retail [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		184,989	157,758
Retail [Member] | Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		184,989	157,758
Retail [Member] | Up to 30 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Retail [Member] | 30 - 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Retail [Member] | Greater than 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Retail [Member] | Obligations of states and political subdivisions [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		556	0
Retail [Member] | Obligations of states and political subdivisions [Member] | Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		556	0
Retail [Member] | Obligations of states and political subdivisions [Member] | Up to 30 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Retail [Member] | Obligations of states and political subdivisions [Member] | 30 - 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Retail [Member] | Obligations of states and political subdivisions [Member] | Greater than 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Retail [Member] | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		95,967	63,527
Retail [Member] | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member] | Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		95,967	63,527
Retail [Member] | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member] | Up to 30 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Retail [Member] | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member] | 30 - 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Retail [Member] | Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises [Member] | Greater than 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Retail [Member] | Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		88,466	94,231
Retail [Member] | Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member] | Overnight and Continuous
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		88,466	94,231
Retail [Member] | Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member] | Up to 30 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Retail [Member] | Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member] | 30 - 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		0	0
Retail [Member] | Collateralized mortgage obligations issued or guaranteed by U.S. government sponsored enterprises [Member] | Greater than 90 Days
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase		$ 0	$ 0

[1] (1) Total repurchase agreements are presented within other borrowed funds on the consolidated statements of condition.