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Accounting for Certain Loans Acquired in a Purchase (Tables)
12 Months Ended
Dec. 31, 2020
Receivables [Abstract]  
Schedule of Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement The accretable amount, or income expected to be collected, and reclassifications from nonaccretable, are identified in the table below.
Twelve Months Ended December 31, 2020Twelve Months Ended December 31, 2019Twelve Months Ended December 31, 2018
Beginning balance$2,132 $2,143 $2,890 
Additions— 576 — 
Accretion(2,852)(2,387)(4,118)
Reclassification from nonaccretable1,947 1,965 3,387 
Disposals(7)(165)(16)
Ending balance$1,220 $2,132 $2,143 
Schedule of Loans Acquired for which Contractually Required Payments would not be Collected
Acquired loan data for MBT is included in the following table:
Fair Value of Acquired Loans at Acquisition DateGross Contractual Amounts Receivable at Acquisition DateBest Estimate at Acquisition Date of Contractual Cash Flows Not Expected to be Collected
Acquired receivables subject to ASC 310-30$3,531 $6,840 $2,733 
Acquired receivables not subject to ASC 310-30$729,047 $907,210 $14,722 
The following table presents loans acquired during the period ending December 31, 2019, for which it was probable at acquisition that all contractually required payments would not be collected.

2019

MBT
Contractually required payments receivable at acquisition date$6,840 
Nonaccretable difference2,733 
Expected cash flows at acquisition date4,107 
Accretable difference576 
Basis in loans at acquisition date$3,531