Commitments and Contingencies	9 Months Ended
Sep. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies In the normal course of business, the Company is involved in various other claims and litigation. In the opinion of management, following consultation with legal counsel, the ultimate liability or disposition thereof of all other claims and litigation is not expected to have a material adverse effect on the consolidated financial condition, results of operations or liquidity of the Company. As of September 30, 2018, the Company had commitments under construction contracts of $5.4 million. On October 11, 2018, the Company entered into a definitive agreement to acquire all of the outstanding stock of Idaho Independent Bank ("IIBK"), a community bank headquartered in Coeur d' Alene, Idaho with 11 banking offices across Idaho, in an all-stock transaction valued at approximately $181.3 million in aggregate, or $22.73 per share of IIBK stock. The Company believes the transaction, if completed on the terms contemplated, will complement the Company's footprint and will provide the Company with an expanded presence in several high-growth markets, including Boise and Coeur d’Alene, Idaho. The transaction has been approved by the boards of directors of both companies and is expected to close and convert data processing systems in the second quarter of 2019, subject to customary conditions, including regulatory approval and IIBK shareholder approval. On October 11, 2018, the Company also entered into a definitive agreement to acquire all of the outstanding stock of Community 1st Bank ("CMYF"), a community bank headquartered in Post Falls, Idaho with three banking offices in North Idaho, in an all-stock transaction valued at approximately $21.5 million in aggregate, or $17.20 per share of CMYF stock. The Company believes the transaction, if completed on the terms contemplated, will complement the Company’s footprint and will provide the Company with an expanded presence in North Idaho's high-growth markets. The transaction has been approved by the boards of directors of both companies and is expected to close and convert data processing systems in the second quarter of 2019, subject to customary conditions, including regulatory approval and CMYF shareholder approval. Residential mortgage loans sold to investors in the secondary market are sold with varying recourse provisions. Essentially all of the loan sales agreements require the repurchase of a mortgage loan by the seller in situations such as breach of representation, warranty or covenant; untimely document delivery; false or misleading statements; failure to obtain certain certificates or insurance; unmarketability; etc. Certain loan sales agreements contain repurchase requirements based on payment-related defects that are defined in terms of the number of days or months since the purchase, the sequence number of the payment, and/or the number of days of payment delinquency. Based on the specific terms stated in the agreements, the Company had $0.5 million of sold residential mortgage loans with recourse provisions still in effect as of September 30, 2018.

Commitments and Contingencies

In the normal course of business, the Company is involved in various other claims and litigation. In the opinion of management, following consultation with legal counsel, the ultimate liability or disposition thereof of all other claims and litigation is not expected to have a material adverse effect on the consolidated financial condition, results of operations or liquidity of the Company.

As of September 30, 2018, the Company had commitments under construction contracts of $5.4 million.

On October 11, 2018, the Company entered into a definitive agreement to acquire all of the outstanding stock of Idaho Independent Bank ("IIBK"), a community bank headquartered in Coeur d' Alene, Idaho with 11 banking offices across Idaho, in an all-stock transaction valued at approximately $181.3 million in aggregate, or $22.73 per share of IIBK stock. The Company believes the transaction, if completed on the terms contemplated, will complement the Company's footprint and will provide the Company with an expanded presence in several high-growth markets, including Boise and Coeur d’Alene, Idaho. The transaction has been approved by the boards of directors of both companies and is expected to close and convert data processing systems in the second quarter of 2019, subject to customary conditions, including regulatory approval and IIBK shareholder approval.

On October 11, 2018, the Company also entered into a definitive agreement to acquire all of the outstanding stock of Community 1st Bank ("CMYF"), a community bank headquartered in Post Falls, Idaho with three banking offices in North Idaho, in an all-stock transaction valued at approximately $21.5 million in aggregate, or $17.20 per share of CMYF stock. The Company believes the transaction, if completed on the terms contemplated, will complement the Company’s footprint and will provide the Company with an expanded presence in North Idaho's high-growth markets. The transaction has been approved by the boards of directors of both companies and is expected to close and convert data processing systems in the second quarter of 2019, subject to customary conditions, including regulatory approval and CMYF shareholder approval.

Residential mortgage loans sold to investors in the secondary market are sold with varying recourse provisions. Essentially all of the loan sales agreements require the repurchase of a mortgage loan by the seller in situations such as breach of representation, warranty or covenant; untimely document delivery; false or misleading statements; failure to obtain certain certificates or insurance; unmarketability; etc. Certain loan sales agreements contain repurchase requirements based on payment-related defects that are defined in terms of the number of days or months since the purchase, the sequence number of the payment, and/or the number of days of payment delinquency. Based on the specific terms stated in the agreements, the Company had $0.5 million of sold residential mortgage loans with recourse provisions still in effect as of September 30, 2018.