Contingent Liabilities and Commitments with Off-Balance Sheet Risk (Tables)

12 Months Ended

Dec. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Summary of Financial Instruments with Off-Balance-Sheet Risk

Unfunded commitments for the Company as of: 

	December 31,
(In thousands)	2018		2017
Contract or Notional Amount
Financial instruments whose contract amounts represent credit risk:
Commitments to extend credit	$	982,739	$	807,651
Standby letters of credit and financial guarantees written:
Secured	17,736		12,913
Unsecured	847		681
Unfunded limited partner equity commitment	7,252		10,914