Acquisitions	3 Months Ended
Mar. 31, 2017
Business Combinations [Abstract]
Acquisitions	Acquisitions Cascade Bancorp. On November 17, 2016, the Company entered into an agreement and plan of merger (the "Agreement") to acquire all of the outstanding stock of Cascade Bancorp, parent company of Bank of the Cascades, an Oregon-based community bank with 46 banking offices across Oregon, Idaho and Washington. Under the terms of the Agreement, each outstanding share of Cascade Bancorp will convert into the right to receive 0.14864 shares of the Company's Class A common stock and $1.91 in cash. Based on the closing price of the Company's Class A common stock on March 31, 2017, the merger consideration represents an aggregate purchase price of approximately $595,128. As of March 31, 2017, Cascade had total assets of $3,136,672, deposits of 2,714,781 and net loans of $2,088,174. Upon completion of the merger, which is expected to close on May 30, 2017 subject to shareholder approval, the Company will become a regional community bank with over $12 billion in total assets and a geographic footprint that will span Montana, Wyoming, South Dakota, Idaho, Oregon and Washington.

Acquisitions

Cascade Bancorp. On November 17, 2016, the Company entered into an agreement and plan of merger (the "Agreement") to acquire all of the outstanding stock of Cascade Bancorp, parent company of Bank of the Cascades, an Oregon-based community bank with 46 banking offices across Oregon, Idaho and Washington. Under the terms of the Agreement, each outstanding share of Cascade Bancorp will convert into the right to receive 0.14864 shares of the Company's Class A common stock and $1.91 in cash. Based on the closing price of the Company's Class A common stock on March 31, 2017, the merger consideration represents an aggregate purchase price of approximately $595,128. As of March 31, 2017, Cascade had total assets of $3,136,672, deposits of 2,714,781 and net loans of $2,088,174. Upon completion of the merger, which is expected to close on May 30, 2017 subject to shareholder approval, the Company will become a regional community bank with over $12 billion in total assets and a geographic footprint that will span Montana, Wyoming, South Dakota, Idaho, Oregon and Washington.