v3.25.4

Condensed Parent Company Financial Statements - Condensed Parent Statements of Income (Details) - USD ($) $ in Thousands		12 Months Ended
	Jun. 04, 2025	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Condensed Statement of Income Captions [Line Items]
Investment interest income		$ 165,374	$ 185,901	$ 177,855
Interest expense on bonds and notes payable		496,950	680,537	845,091
Net interest income		354,509	292,862	264,709
Other income (expense):
Other, net		97,587	59,959	(91,989)
Derivative market value adjustments and derivative settlements, net		(6,398)	16,258	(16,701)
Gain on partial redemption of ALLO investment	$ 175,000	175,044	0	0
Total other income (expense), net		1,404,345	1,165,079	924,311
Operating expenses		927,088	882,934	892,431
Impairment expense		29,612	3,138	31,925
Income (loss) before income taxes		526,332	228,584	68,715
Income tax (expense) benefit		(127,986)	(52,669)	(19,385)
Net income		398,346	175,915	49,330
Net loss attributable to noncontrolling interests		30,128	8,130	40,496
Net income (loss) attributable to Nelnet, Inc.		428,474	184,045	89,826
Parent Company
Condensed Statement of Income Captions [Line Items]
Investment interest income		47,853	58,829	86,696
Interest expense on bonds and notes payable		298	8,790	31,142
Net interest income		47,555	50,039	55,554
Other income (expense):
Other, net		68,063	34,454	(57,959)
Equity in subsidiaries income		218,643	110,381	101,885
Derivative market value adjustments and derivative settlements, net		(3,195)	10,639	(15,662)
Gain on partial redemption of ALLO investment		175,044	0	0
Total other income (expense), net		458,555	155,474	28,264
Operating expenses		2,626	4,368	5,445
Impairment expense		3,575	537	2,060
Total expenses		6,201	4,905	7,505
Income (loss) before income taxes		499,909	200,608	76,313
Income tax (expense) benefit		(71,754)	(17,277)	13,303
Net income		428,155	183,331	89,616
Net loss attributable to noncontrolling interests		319	714	210
Net income (loss) attributable to Nelnet, Inc.		$ 428,474	$ 184,045	$ 89,826

Derivative Market Value Adjustments And Derivative Settlements, Net

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