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Business Combinations - Textuals (Details) - USD ($) |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jul. 02, 2018 | Jan. 16, 2018 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Jun. 29, 2018 | Jan. 12, 2018
Business Acquisition [Line Items] |  |  |  |  |  |  |
Goodwill |  |  | $ 0 | $ 0 | $ 121,910,000 |  |
Share price (in usd per share) |  |  |  |  | $ 31.80 |  |
Number of shares forfeited to pay applicable taxes (in shares) |  |  |  |  | 26,741 |  |
Puget Sound |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Goodwill |  | $ 68,520,000 |  |  |  |  |
Number of shares issued (in shares) |  | 1.1688 |  |  |  |  |
Number of shares issued |  | 4,112,258 |  |  |  |  |
Share price (in usd per share) |  | $ 31.80 |  |  |  |  | $ 31.80
Fair value of shares issued |  | $ 130,800,000 |  |  |  |  |
Share price paid in cash (in usd per share) |  | $ 3,000 |  |  |  |  |
Total consideration paid |  | $ 130,773,000 |  |  |  |  |
Total fair value of shares forfeited to pay applicable taxes |  | $ 851,000 |  |  |  |  |
Number of shares forfeited to pay applicable taxes (in shares) |  | 26,741 |  |  |  |  |
Acquisition-related costs |  |  | 0 | 75,000 | $ 5,400,000 |  |
Premier Commercial |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Goodwill | $ 53,390,000 |  |  |  |  |  |
Number of shares issued (in shares) | 0.4863 |  |  |  |  |  |
Number of shares issued | 2,848,579 |  |  |  |  |  |
Share price (in usd per share) | $ 34.85 |  |  |  |  | $ 34.85 |
Fair value of shares issued | $ 99,300,000 |  |  |  |  |  |
Share price paid in cash (in usd per share) | $ 2,000 |  |  |  |  |  |
Total consideration paid | $ 99,275,000 |  |  |  |  |  |
Acquisition-related costs |  |  | $ 0 | $ 57,000 | $ 4,900,000 |  |

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- Definition Business Combination, Fair Value of Shares Issued in Merger but Forfeited to Pay Taxes + References No definition available. + Details
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- Definition Business Combination, Shares Issued in Merger but Forfeited to Pay Taxes + References No definition available. + Details
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- Definition Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(4) -URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479 + Details
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- Definition Number of shares of equity interests issued or issuable to acquire entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(4) -URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479 + Details
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- Definition Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination. + References No definition available. + Details
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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=116868678&loc=d3e1043-128460 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details
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