Is a withdrawal of money from an inherited IRA taxable income? If so, shouldn't I have received a form from the wealth management company to report it?

I inherited money in an IRA last year and paid the estate taxes.  After the estate was settled, I withdrew some of the money from that inherited IRA to pay some debts, and paid taxes on that withdrawal.  Is the money I withdrew taxable income?  I never received any form from the wealth management company that oversees the IRA to report it to the IRS.