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Federal Home Loan Bank and Federal Reserve Bank Stock
9 Months Ended
Sep. 30, 2019
Federal Home Loan Banks [Abstract]  
Federal Home Loan Bank and Federal Reserve Bank Stocks Federal Home Loan Bank and Federal Reserve Bank Stocks

Federal Home Loan Bank ("FHLB") and Federal Reserve Bank ("FRB") stocks were as follows:
(In thousands)
At September 30, 2019
 
At December 31, 2018
FHLB stock, at cost
$
184,483

 
$
54,019

FRB stock, at cost
105,755

 
37,635



The investments in FHLB stock are required investments related to TCF's membership and borrowings in the FHLB of Des Moines, and additional current borrowings from the FHLB of Indianapolis and Cincinnati. TCF's investments in the FHLB of Des Moines could be adversely impacted by the financial operations of the Federal Home Loan Banks and actions of their regulator, the Federal Housing Finance Agency. The amount of FRB stock that TCF Bank is required to hold is based on TCF Bank's capital structure. TCF periodically evaluates investments for other than temporary impairment. There was no impairment of these investments at September 30, 2019 and December 31, 2018.