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Salary Deferral Plans | 12 Months Ended
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Dec. 31, 2018
Deferred Compensation Arrangements [Abstract] |
Salary Deferral Plans | Note 13. Salary Deferral Plans Pinnacle Financial has a 401(k) retirement plan (the 401k Plan) covering all employees who elect to participate, subject to certain eligibility requirements. The 401(k) Plan allows employees to defer up to 50% of their salary subject to regulatory limitations with Pinnacle Financial matching 100% of the first 4% of employee self-directed contributions during 2018, 2017, and 2016. Pinnacle Financial's expense associated with the matching component of the plan for each of the years in the three-year period ended December 31, 2018 was approximately $7.6 million, $5.9 million and $4.0 million, respectively, and is included in the accompanying consolidated statements of operations in salaries and employee benefits expense. Pinnacle Financial has assumed supplemental retirement plans for certain directors and executive officers of banks which we have acquired. At December 31, 2018 and 2017, respectively, Pinnacle Financial had recorded $28.1 million and $34.4 million of liabilities on its balance sheet associated with these supplemental executive retirement plans. A portion of these assumed plans were fully funded with Rabbi Trust whose balances at December 31, 2018 totaled $28.9 million. At December 31, 2018, the remaining amounts that are not yet funded are included in other liabilities in the accompanying consolidated balance sheets.

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- Definition The entire disclosure for an entity's employee compensation and benefit plans, including, but not limited to, postemployment and postretirement benefit plans, defined benefit pension plans, defined contribution plans, non-qualified and supplemental benefit plans, deferred compensation, share-based compensation, life insurance, severance, health care, unemployment and other benefit plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -URI http://asc.fasb.org/topic&trid=2228938 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 712 -URI http://asc.fasb.org/topic&trid=2197446 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -URI http://asc.fasb.org/topic&trid=2127225 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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