Guarantees (Tables)

3 Months Ended

Mar. 31, 2018

Guarantees [Abstract]

Schedule of Guarantor Obligations

The following table presents the notional amount and fair value of Arrow's off-balance sheet commitments to extend credit and commitments under standby letters of credit as of March 31, 2018, December 31, 2017 and March 31, 2017:

Commitments to Extend Credit and Letters of Credit
	March 31, 2018		December 31, 2017		March 31, 2017
Notional Amount:
Commitments to Extend Credit	$	328,774	$	315,256	$	294,618
Standby Letters of Credit	3,584		3,526		3,371
Fair Value:
Commitments to Extend Credit	$	—	$	—	$	—
Standby Letters of Credit	24		23		28