Acquisitions (Tables)

12 Months Ended

Dec. 31, 2016

Schedule of Acquired Loans not Deemed to Have Credit Impairment [Table Text Block]



Contractually required principal and interest payments	$	100,616
Contractual cash flows not expected to be collected	4,702
Fair value at acquisition	76,136

Schedule of Recognized Identifiable Assets Acquired and Liabilities Assumed

The following table summarizes the consideration paid, fair values of the Flathead assets acquired and liabilities assumed and the resulting goodwill. All amounts are final.



	As Recorded			Fair Value				As Recorded
As of August 12, 2016	by Flathead			Adjustments				by the Company

Assets acquired:
Cash and cash equivalents	$	52,653		$	—			$	52,653
Investment securities	99,801			1,315			(1)	101,116
Loans	87,181			(3,833		)	(2)	83,348
Allowance for loan losses	(1,567		)	1,567			(3)	—
Premises and equipment	4,529			891			(4)	5,420
Core deposit intangible assets	—			2,486			(5)	2,486
Company-owned life insurance	6,386			—				6,386
Other assets	5,200			(2,373		)	(6)	2,827
Total assets acquired	254,183			53				254,236
Liabilities assumed:
Deposits	209,673			(86		)	(7)	209,587
Repurchase agreements	18,050			—				18,050
Other liabilities	838			—				838
Total liabilities assumed	228,561			(86		)		228,475
Net assets acquired	$	25,622		$	139			25,761
Cash consideration paid								34,100
Goodwill								$	8,339



Explanation of fair value adjustments:
(1)	Write up of the book value of investments to their estimated fair values on the date of acquisition based upon quotes obtained from an independent third party pricing service.
(2)	Write down of the book value of loans to their estimated fair values. The fair value of loans was estimated using cash flow projections based on the remaining maturity and repricing terms, adjusted for estimated future credit losses and prepayments and discounted to present value using a risk-adjusted market rate for similar loans. The fair value of collateral dependent loans acquired with deteriorated credit quality was estimated based on the Company's analysis of the fair value of each loan's underlying collateral, discounted using market-derived rates of return with consideration given to the period of time and costs associated with foreclosure and disposition of the collateral.
(3)	Adjustment to remove the Flathead allowance for loan losses at acquisition date as the credit risk is accounted for in the fair value adjustment for loans receivable described in (2) above.
(4)	Write up of the book value of premises and equipment to their estimated fair values on the date of acquisition based upon appraisals obtained from an independent third party appraiser or pending buy/sell agreements.
(5)	Adjustment represents the value of the core deposit base assumed in the acquisition based upon an internal valuation using industry averages obtained from an investment banking firm.
(6)	Adjustment consists of the write-off of pre-existing goodwill and prepaid assets.
(7)	Decrease in book value of time deposits to their estimated fair values based upon interest rates of similar time deposits with similar terms on the date of acquisition.

Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period



Contractually required principal and interest payments	$	19,324
Contractual cash flows not expected to be collected ("non-accretable discount")	10,999
Cash flows expected to be collected	8,325
Interest component of cash flows expected to be collected ("accretable discount")	1,113
Fair value of acquired credit-impaired loans	$	7,212

Business Acquisition, Pro Forma Information



Year ended December 31, (unaudited)	2016		2015
Interest income	$	301,699	$	289,330
Non-interest income	137,793		123,282
Total revenues	$	439,492	$	412,612

Net income	$	98,674	$	88,847