Merger and Acquisition Activity (Tables)

12 Months Ended

Dec. 31, 2012

Merger and Acquisition Activity [Abstract]

Consideration paid, assets acquired, and liabilities assumed

The results of Hampshire First's operations are included in the Consolidated Statements of Income from the date of acquisition. In connection with the merger, the consideration paid, the assets acquired, and the liabilities assumed were recorded at fair value on the date of acquisition, as summarized in the following tables, in thousands, as of June 8, 2012

Consideration Paid:
NBT Bancorp common stock issued to Hampshire First common stockholders	$	25,824
Cash consideration paid to Hampshire First common stockholders		14,616
Cash consideration paid for Hampshire First employee stock options and warrants		2,583
Total consideration paid	$	43,023
Recognized Amounts of Identifiable Assets Acquired and (Liabilities Assumed), At Fair Value:
Cash and short term investments	$	22,149
Loans		218,801
Federal Home Loan Bank common stock		1,014
Core deposit intangibles		797
Other assets		12,926
Deposits		(228,198	)
Borrowings		(41	)
Other liabilities		(2,848	)
Total identifiable net assets	$	24,600
Goodwill	$	18,423

Acquired loan portfolio

Information about the acquired loan portfolio as of June 8, 2012 is as follows (in thousands):

Contractually required principal and interest at acquisition	$	226,631
Contractual cash flows not expected to be collected		(7,985	)
Expected cash flows at acquisition		218,646
Interest component of expected cash flows (accretable premium)		155
Fair value of acquired loans	$	218,801