Consolidated Statements of Changes in Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands |
Total |
Common Stock |
Accumulated Other Comprehensive Loss |
Retained Earnings |
| Beginning balance (in shares) at Sep. 30, 2024 |
|
60,352
|
|
|
| Beginning balance at Sep. 30, 2024 |
$ 1,842,815
|
$ 598,304
|
$ (32,460)
|
$ 1,276,971
|
| Increase (Decrease) in Shareholders' Equity |
|
|
|
|
| Net income |
41,196
|
|
|
41,196
|
| Foreign currency translation |
10,452
|
|
10,452
|
|
| Cash flow hedge, net of tax |
2,454
|
|
2,454
|
|
| Cash dividends |
(18,060)
|
|
|
(18,060)
|
| Dividends on RSUs |
0
|
$ 301
|
|
(301)
|
| Purchases of Maximus common stock (in shares) |
|
(3,113)
|
|
|
| Purchases of Maximus common stock |
(236,655)
|
|
|
(236,655)
|
| Stock compensation expense |
6,952
|
$ 6,952
|
|
|
| Tax withholding adjustment related to RSU vesting |
(2,305)
|
$ (2,305)
|
|
|
| RSUs vested (in shares) |
|
47
|
|
|
| Ending balance (in shares) at Dec. 31, 2024 |
|
57,286
|
|
|
| Ending balance at Dec. 31, 2024 |
1,646,849
|
$ 603,252
|
(19,554)
|
1,063,151
|
| Beginning balance (in shares) at Sep. 30, 2024 |
|
60,352
|
|
|
| Beginning balance at Sep. 30, 2024 |
1,842,815
|
$ 598,304
|
(32,460)
|
1,276,971
|
| Increase (Decrease) in Shareholders' Equity |
|
|
|
|
| Net income |
243,746
|
|
|
|
| Foreign currency translation |
21,503
|
|
|
|
| Cash flow hedge, net of tax |
(1,672)
|
|
|
|
| Ending balance (in shares) at Jun. 30, 2025 |
|
56,350
|
|
|
| Ending balance at Jun. 30, 2025 |
1,773,036
|
$ 627,496
|
(12,629)
|
1,158,169
|
| Beginning balance (in shares) at Dec. 31, 2024 |
|
57,286
|
|
|
| Beginning balance at Dec. 31, 2024 |
1,646,849
|
$ 603,252
|
(19,554)
|
1,063,151
|
| Increase (Decrease) in Shareholders' Equity |
|
|
|
|
| Net income |
96,569
|
|
|
96,569
|
| Foreign currency translation |
3,731
|
|
3,731
|
|
| Cash flow hedge, net of tax |
(2,552)
|
|
(2,552)
|
|
| Cash dividends |
(16,901)
|
|
|
(16,901)
|
| Dividends on RSUs |
0
|
$ 440
|
|
(440)
|
| Purchases of Maximus common stock (in shares) |
|
(947)
|
|
|
| Purchases of Maximus common stock |
(72,845)
|
|
|
(72,845)
|
| Stock compensation expense |
12,623
|
$ 12,623
|
|
|
| RSUs vested (in shares) |
|
10
|
|
|
| Ending balance (in shares) at Mar. 31, 2025 |
|
56,349
|
|
|
| Ending balance at Mar. 31, 2025 |
1,667,474
|
$ 616,315
|
(18,375)
|
1,069,534
|
| Increase (Decrease) in Shareholders' Equity |
|
|
|
|
| Net income |
105,981
|
|
|
105,981
|
| Foreign currency translation |
7,320
|
|
7,320
|
|
| Cash flow hedge, net of tax |
(1,574)
|
|
(1,574)
|
|
| Cash dividends |
(16,904)
|
|
|
(16,904)
|
| Dividends on RSUs |
0
|
442
|
|
(442)
|
| Stock compensation expense |
10,749
|
10,749
|
|
|
| Tax withholding adjustment related to RSU vesting |
(10)
|
$ (10)
|
|
|
| RSUs vested (in shares) |
|
1
|
|
|
| Ending balance (in shares) at Jun. 30, 2025 |
|
56,350
|
|
|
| Ending balance at Jun. 30, 2025 |
$ 1,773,036
|
$ 627,496
|
(12,629)
|
1,158,169
|
| Beginning balance (in shares) at Sep. 30, 2025 |
54,805
|
54,805
|
|
|
| Beginning balance at Sep. 30, 2025 |
$ 1,674,035
|
$ 628,118
|
(17,867)
|
1,063,784
|
| Increase (Decrease) in Shareholders' Equity |
|
|
|
|
| Net income |
93,943
|
|
|
93,943
|
| Foreign currency translation |
248
|
|
248
|
|
| Cash flow hedge, net of tax |
(1,407)
|
|
(1,407)
|
|
| Cash dividends |
(16,338)
|
|
|
(16,338)
|
| Dividends on RSUs |
0
|
$ 363
|
|
(363)
|
| Purchases of Maximus common stock (in shares) |
|
(353)
|
|
|
| Purchases of Maximus common stock |
(31,055)
|
|
|
(31,055)
|
| Stock compensation expense |
7,019
|
$ 7,019
|
|
|
| Tax withholding adjustment related to RSU vesting |
(6,633)
|
$ (6,633)
|
|
|
| RSUs vested (in shares) |
|
97
|
|
|
| Ending balance (in shares) at Dec. 31, 2025 |
|
54,549
|
|
|
| Ending balance at Dec. 31, 2025 |
$ 1,719,812
|
$ 628,867
|
(19,026)
|
1,109,971
|
| Beginning balance (in shares) at Sep. 30, 2025 |
54,805
|
54,805
|
|
|
| Beginning balance at Sep. 30, 2025 |
$ 1,674,035
|
$ 628,118
|
(17,867)
|
1,063,784
|
| Increase (Decrease) in Shareholders' Equity |
|
|
|
|
| Net income |
295,599
|
|
|
|
| Foreign currency translation |
(2,276)
|
|
|
|
| Cash flow hedge, net of tax |
$ (578)
|
|
|
|
| Ending balance (in shares) at Jun. 30, 2026 |
52,358
|
52,358
|
|
|
| Ending balance at Jun. 30, 2026 |
$ 1,740,551
|
$ 647,138
|
(20,721)
|
1,114,134
|
| Beginning balance (in shares) at Dec. 31, 2025 |
|
54,549
|
|
|
| Beginning balance at Dec. 31, 2025 |
1,719,812
|
$ 628,867
|
(19,026)
|
1,109,971
|
| Increase (Decrease) in Shareholders' Equity |
|
|
|
|
| Net income |
98,063
|
|
|
98,063
|
| Foreign currency translation |
(2,779)
|
|
(2,779)
|
|
| Cash flow hedge, net of tax |
750
|
|
750
|
|
| Cash dividends |
(17,821)
|
|
|
(17,821)
|
| Dividends on RSUs |
0
|
$ 503
|
|
(503)
|
| Purchases of Maximus common stock (in shares) |
|
(1,445)
|
|
|
| Purchases of Maximus common stock |
(110,963)
|
|
|
(110,963)
|
| Stock compensation expense |
9,899
|
$ 9,899
|
|
|
| RSUs vested (in shares) |
|
6
|
|
|
| Ending balance (in shares) at Mar. 31, 2026 |
|
53,110
|
|
|
| Ending balance at Mar. 31, 2026 |
1,696,961
|
$ 639,269
|
(21,055)
|
1,078,747
|
| Increase (Decrease) in Shareholders' Equity |
|
|
|
|
| Net income |
103,593
|
|
|
103,593
|
| Foreign currency translation |
255
|
|
255
|
|
| Cash flow hedge, net of tax |
79
|
|
79
|
|
| Cash dividends |
(17,278)
|
|
|
(17,278)
|
| Dividends on RSUs |
0
|
$ 513
|
|
(513)
|
| Purchases of Maximus common stock (in shares) |
|
(752)
|
|
|
| Purchases of Maximus common stock |
(50,415)
|
|
|
(50,415)
|
| Stock compensation expense |
$ 7,356
|
$ 7,356
|
|
|
| Ending balance (in shares) at Jun. 30, 2026 |
52,358
|
52,358
|
|
|
| Ending balance at Jun. 30, 2026 |
$ 1,740,551
|
$ 647,138
|
$ (20,721)
|
$ 1,114,134
|