Employee Benefits	12 Months Ended
	Dec. 31, 2022
Retirement Benefits [Abstract]
Employee Benefits	EMPLOYEE BENEFITSFarmer Mac makes contributions to a defined contribution retirement plan for all of its employees. Farmer Mac contributed 13.2% of the lesser of an employee's gross salary and the maximum compensation permitted under the Economic Growth and Tax Relief Reconciliation Act of 2001 ("EGTRRA") ($305,000 for 2022, $290,000 for 2021, and $285,000 for 2020), plus 5.7% of the difference between: (1) the lesser of the gross salary and the amount established under EGTRRA and (2) the Social Security Taxable Wage Base. Employees are fully vested after having been employed for approximately 3 years. Expenses for this plan for the years ended December 31, 2022, 2021, and 2020 were $3.1 million, $2.7 million, and $2.2 million, respectively.Farmer Mac established a Nonqualified Deferred Compensation Plan ("NQDC Plan") for its executive officers effective May 1, 2017. Under the NQDC Plan, Farmer Mac credits the account of each participant each calendar year with an amount equal to 18.9% of the difference between: (1) the amount established under EGTRRA and (2) a participant’s gross annual base salary, which for purposes of calculating employer credits under the NQDC Plan is capped at $700,000 for Farmer Mac’s Chief Executive Officer and $500,000 for all other participants. This fixed contribution percentage is the same formula used for determining employer contributions to Farmer Mac’s defined contribution retirement plan based on an employee’s gross annual base salary that is above the amount established under EGTRRA for that year. Expenses for the NQDC Plan were $0.2 million for the years ended December 31, 2022, 2021, and 2020.