CHFC 2018 Annual Report

Corporation's common stock, and other relevant factors. Based on the qualitative assessment performed, theCorporation determined that no goodwill impairment was evident as of the October 31, 2018 assessment date. The Corporation also determined that no triggering events occurred that indicated impairment from the most recent assessment date through December 31, 2018 and that the Corporation's goodwill was not impaired at December 31, 2018. Other Intangible Assets Intangible assets consist of core deposit intangible assets and additionally included non-compete intangible assets at December 31, 2017. Core deposit intangible assets arose as the result of business combinations or other acquisitions and are amortized over periods ranging from 10 to 15 years, primarily on an accelerated basis, as applicable. Non-compete intangible assets arose as the result of business combinations and are amortized over the period of the non-compete agreements. Intangible assets are tested for impairment on an annual basis in accordance with ASC Topic 350, "Intangibles-Goodwill and Other." Share-based Compensation The Corporation grants stock options, Time-Based Restricted Stock Units ("TRSUs"), Performance-Based Restricted Stock Units ("PRSUs"), and other stock awards to certain executive and senior management employees. The Corporation accounts for share-based compensation expense using themodified-prospective transitionmethod. Under thatmethod, compensation expense is recognized for stock options based on the estimated grant date fair value as computed using the Black-Scholes option pricing model and the probability of issuance. The Corporation accounts for stock awards based on the closing stock price of the Corporation's common stock on the date the award is granted. The fair values of stock options, stock awards and restricted stock awards are recognized as compensation expense on a straight-line basis over the requisite service period. The Corporation accounts for PRSUs based on the closing stock price of the Corporation's common stock on the date of grant, discounted by the present value of estimated future dividends to be declared over the requisite performance or service period. The fair value of PRSUs is recognized as compensation expense over the expected requisite performance period, or requisite service period for awards with multiple performance and service conditions. The Corporation accounts for TRSUs based on the closing stock price of the Corporation's common stock on the date of grant, as these awards accrue dividend equivalents equal to the amount of any cash dividends that would have been payable to a shareholder owning the number of shares of the Corporation's common stock represented by the TRSUs. The fair value of the TRSUs is recognized as compensation expense over the requisite service period. Bank-Owned Life Insurance The Corporation has life insurance policies on certain key officers of Chemical Bank. The majority of the bank-owned life insurance policies of the Corporation were obtained through its acquisition of Lake Michigan and the merger with Talmer. Bank-owned life insurance is recorded at the cash surrender value, net of surrender charges, and is included within "Interest receivable and other assets" on the Consolidated Statements of Financial Position and tax-exempt income from the periodic changes in the cash surrender values are recorded as "Other noninterest income" on the Consolidated Statements of Income. The total cash surrender value of our bank owned life insurance policies totaled $152.1 million and $147.6 million at December 31, 2018 and 2017, respectively. Bank owned life insurance income was $4.0 million, $4.8 million and $1.8 million for the years ended December 31, 2018, 2017 and 2016, respectively. Collateralized Customer Deposits Collateralized customer deposits represent funds deposited by customers that are collateralized by investment securities owned by Chemical Bank, as these deposits are not covered by Federal Deposit Insurance Corporation ("FDIC") insurance and are reflected as a liability in the accompanying Consolidated Statements of Financial Position. The Corporation's collateralized customer deposits are considered a stable source of liquidity, much like its core deposit base, and are generally only provided to customers that have an established banking relationship with Chemical Bank. Short-term Borrowings Short-term borrowings are comprised of short-term FHLB advances with original scheduled maturities of one year or less. From time to time, the Corporation may also utilized federal funds purchased, which represent unsecured borrowings from nonaffiliated third-party financial institutions, generally on an overnight basis, to cover short-term liquidity needs. Chemical Financial Corporation Notes to Consolidated Financial Statements December 31, 2018 96