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Trading Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Schedule of Trading Securities [Line Items]
Trading securities	$ 2,294,358	$ 4,464,161
Trading Securities, Net Unrealized Gain (Loss)	12,566	(323)
U.S. government securities [Member]
Schedule of Trading Securities [Line Items]
Trading securities	5,618	9,823
Trading Securities, Net Unrealized Gain (Loss)	(6)	(16)
Residential agency mortgage-backed securities [Member]
Schedule of Trading Securities [Line Items]
Trading securities	2,210,721	4,406,848
Trading Securities, Net Unrealized Gain (Loss)	12,289	4
Municipal securities [Member]
Schedule of Trading Securities [Line Items]
Trading securities	37,455	21,484
Trading Securities, Net Unrealized Gain (Loss)	45	(136)
Asset-backed securities [Member]
Schedule of Trading Securities [Line Items]
Trading securities	10,194	0
Trading Securities, Net Unrealized Gain (Loss)	10	0
Other trading securities [Member]
Schedule of Trading Securities [Line Items]
Trading securities	30,370	26,006
Trading Securities, Net Unrealized Gain (Loss)	$ 228	$ (175)

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- Definition

Represents the unrealized holding gain or loss included in the fair value of trading securities as of the balance sheet date.

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- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=124260329&loc=d3e26610-111562

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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