Segment Information - Summarized Financial Information by Operating Group (Details) - USD ($) $ in Thousands |
3 Months Ended |
6 Months Ended |
|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
| Revenues: |
|
|
|
|
|
| Commissions and fees |
$ 488,789
|
$ 376,249
|
$ 1,017,650
|
$ 786,780
|
|
| Investment income |
4,150
|
2,562
|
7,524
|
5,436
|
|
| Total revenues |
492,939
|
378,811
|
1,025,174
|
792,216
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
264,323
|
195,471
|
547,935
|
393,491
|
|
| Outside commissions |
71,798
|
73,586
|
138,477
|
139,409
|
|
| Selling Expense |
19,643
|
14,049
|
38,258
|
27,884
|
|
| Operating Expenses |
73,400
|
41,154
|
278,281
|
84,825
|
|
| Administrative expense |
105,610
|
59,888
|
209,664
|
120,236
|
|
| All other (income) expense, net |
14,146
|
(196)
|
(129,564)
|
6,614
|
|
| Total expense |
548,920
|
383,952
|
1,083,051
|
772,459
|
|
| Net income (loss) |
(55,981)
|
(5,141)
|
(57,877)
|
19,757
|
|
| Other Segment Disclosures [Abstract] |
|
|
|
|
|
| Loss on change in fair value of contingent consideration |
12,303
|
(1,957)
|
14,272
|
6,104
|
|
| Depreciation and amortization expense |
58,800
|
27,652
|
115,878
|
55,117
|
|
| Interest (income) expense, net |
45,666
|
31,320
|
84,566
|
61,296
|
|
| (Gain) loss on divestitures |
0
|
1,111
|
0
|
(290)
|
|
| Loss on extinguishment and modification of debt |
129
|
0
|
7,538
|
2,394
|
|
| Share of net earnings of equity method investee |
664
|
0
|
1,175
|
0
|
|
| Capital expenditures |
|
|
27,848
|
20,310
|
|
| Total assets |
6,174,724
|
|
6,174,724
|
|
$ 3,862,220
|
| Commissions revenue |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
373,060
|
299,243
|
793,614
|
638,105
|
|
| Profit-sharing revenue |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
29,534
|
19,960
|
55,645
|
44,300
|
|
| Consulting and service fee revenue |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
44,883
|
27,375
|
88,356
|
47,531
|
|
| Policy fee and installment fee revenue |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
21,201
|
19,684
|
41,943
|
37,664
|
|
| Assumed premium earned |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
15,309
|
5,488
|
29,500
|
9,805
|
|
| Other income |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
4,802
|
4,499
|
8,592
|
9,375
|
|
| Inside advisor commissions |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
74,911
|
49,131
|
170,157
|
113,370
|
|
| Fixed compensation |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
108,920
|
83,152
|
218,029
|
161,723
|
|
| Benefits and other |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
53,884
|
43,128
|
113,999
|
87,597
|
|
| Share-based compensation |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
20,701
|
16,952
|
33,519
|
29,755
|
|
| Severance |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
5,907
|
1,618
|
12,231
|
2,825
|
|
| Colleague earnout incentives |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
|
1,490
|
|
(1,779)
|
|
| Insurance Advisory Solutions |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Investment income |
2,459
|
912
|
4,007
|
1,936
|
|
| Total revenues |
275,343
|
183,265
|
606,539
|
410,938
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
190,144
|
127,290
|
402,068
|
264,242
|
|
| Outside commissions |
3,953
|
2,800
|
8,629
|
6,438
|
|
| Selling Expense |
11,571
|
6,424
|
23,236
|
12,522
|
|
| Operating Expenses |
28,093
|
14,420
|
56,173
|
29,036
|
|
| Administrative expense |
35,186
|
13,885
|
67,484
|
27,881
|
|
| All other (income) expense, net |
7,675
|
668
|
7,946
|
5,956
|
|
| Total expense |
276,622
|
165,487
|
565,536
|
346,075
|
|
| Net income (loss) |
(1,279)
|
17,778
|
41,003
|
64,863
|
|
| Other Segment Disclosures [Abstract] |
|
|
|
|
|
| Loss on change in fair value of contingent consideration |
5,105
|
(468)
|
5,403
|
6,670
|
|
| Depreciation and amortization expense |
32,946
|
13,519
|
65,201
|
27,385
|
|
| Interest (income) expense, net |
1,797
|
(1)
|
1,663
|
(1)
|
|
| (Gain) loss on divestitures |
|
(500)
|
|
(1,901)
|
|
| Loss on extinguishment and modification of debt |
0
|
|
0
|
0
|
|
| Share of net earnings of equity method investee |
0
|
|
0
|
|
|
| Capital expenditures |
|
|
4,661
|
2,689
|
|
| Total assets |
4,222,844
|
|
4,222,844
|
|
2,293,873
|
| Insurance Advisory Solutions | Commissions revenue |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
208,847
|
139,680
|
474,884
|
330,008
|
|
| Insurance Advisory Solutions | Profit-sharing revenue |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
17,833
|
14,003
|
36,859
|
28,973
|
|
| Insurance Advisory Solutions | Consulting and service fee revenue |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
42,935
|
25,993
|
85,000
|
44,580
|
|
| Insurance Advisory Solutions | Policy fee and installment fee revenue |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
0
|
0
|
0
|
0
|
|
| Insurance Advisory Solutions | Assumed premium earned |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
0
|
0
|
0
|
0
|
|
| Insurance Advisory Solutions | Other income |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
3,269
|
2,677
|
5,789
|
5,441
|
|
| Insurance Advisory Solutions | Inside advisor commissions |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
66,039
|
41,031
|
151,753
|
96,794
|
|
| Insurance Advisory Solutions | Fixed compensation |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
76,404
|
54,340
|
154,418
|
107,480
|
|
| Insurance Advisory Solutions | Benefits and other |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
34,858
|
23,793
|
72,052
|
49,664
|
|
| Insurance Advisory Solutions | Share-based compensation |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
9,257
|
5,904
|
14,919
|
10,757
|
|
| Insurance Advisory Solutions | Severance |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
3,586
|
732
|
8,926
|
1,218
|
|
| Insurance Advisory Solutions | Colleague earnout incentives |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
|
1,490
|
|
(1,671)
|
|
| Insurance Advisory Solutions | Intersegment Eliminations |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
(200)
|
(200)
|
(400)
|
(200)
|
|
| Underwriting, Capacity & Technology Solutions |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Investment income |
1,425
|
1,135
|
2,759
|
2,173
|
|
| Total revenues |
160,247
|
147,510
|
295,190
|
272,684
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
34,810
|
30,338
|
69,050
|
55,347
|
|
| Outside commissions |
66,551
|
70,716
|
124,311
|
131,879
|
|
| Selling Expense |
2,477
|
1,591
|
4,616
|
3,145
|
|
| Operating Expenses |
30,171
|
13,976
|
57,491
|
28,511
|
|
| Administrative expense |
14,790
|
5,339
|
25,347
|
10,154
|
|
| All other (income) expense, net |
4,755
|
(1,565)
|
5,176
|
(831)
|
|
| Total expense |
153,554
|
120,395
|
285,991
|
228,205
|
|
| Net income (loss) |
6,693
|
27,115
|
9,199
|
44,479
|
|
| Other Segment Disclosures [Abstract] |
|
|
|
|
|
| Loss on change in fair value of contingent consideration |
5,446
|
(1,554)
|
6,880
|
(845)
|
|
| Depreciation and amortization expense |
10,821
|
5,102
|
21,057
|
9,743
|
|
| Interest (income) expense, net |
3,642
|
110
|
3,721
|
219
|
|
| (Gain) loss on divestitures |
|
0
|
|
0
|
|
| Loss on extinguishment and modification of debt |
0
|
|
0
|
0
|
|
| Share of net earnings of equity method investee |
664
|
|
1,175
|
|
|
| Capital expenditures |
|
|
14,464
|
7,924
|
|
| Total assets |
1,184,295
|
|
1,184,295
|
|
758,085
|
| Underwriting, Capacity & Technology Solutions | Commissions revenue |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
114,990
|
117,060
|
209,460
|
212,009
|
|
| Underwriting, Capacity & Technology Solutions | Profit-sharing revenue |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
5,310
|
2,038
|
8,072
|
7,313
|
|
| Underwriting, Capacity & Technology Solutions | Consulting and service fee revenue |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
1,872
|
1,382
|
3,280
|
2,951
|
|
| Underwriting, Capacity & Technology Solutions | Policy fee and installment fee revenue |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
21,201
|
19,684
|
41,943
|
37,664
|
|
| Underwriting, Capacity & Technology Solutions | Assumed premium earned |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
15,309
|
5,488
|
29,500
|
9,805
|
|
| Underwriting, Capacity & Technology Solutions | Other income |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
140
|
723
|
176
|
769
|
|
| Underwriting, Capacity & Technology Solutions | Inside advisor commissions |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
727
|
180
|
1,380
|
315
|
|
| Underwriting, Capacity & Technology Solutions | Fixed compensation |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
19,319
|
16,016
|
37,788
|
29,960
|
|
| Underwriting, Capacity & Technology Solutions | Benefits and other |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
9,802
|
10,022
|
21,930
|
18,572
|
|
| Underwriting, Capacity & Technology Solutions | Share-based compensation |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
4,472
|
3,397
|
7,437
|
5,678
|
|
| Underwriting, Capacity & Technology Solutions | Severance |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
490
|
723
|
515
|
930
|
|
| Underwriting, Capacity & Technology Solutions | Colleague earnout incentives |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
|
0
|
|
(108)
|
|
| Underwriting, Capacity & Technology Solutions | Intersegment Eliminations |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
(18,000)
|
(18,800)
|
(33,800)
|
(36,900)
|
|
| Mainstreet Insurance Solutions Segment |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Investment income |
21
|
56
|
52
|
114
|
|
| Total revenues |
75,327
|
66,564
|
156,985
|
144,433
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
28,255
|
25,850
|
56,875
|
51,874
|
|
| Outside commissions |
19,517
|
19,057
|
39,783
|
38,144
|
|
| Selling Expense |
2,949
|
3,828
|
5,963
|
7,860
|
|
| Operating Expenses |
5,875
|
5,828
|
11,745
|
11,300
|
|
| Administrative expense |
13,222
|
7,744
|
26,128
|
15,356
|
|
| All other (income) expense, net |
1,745
|
34
|
1,905
|
742
|
|
| Total expense |
71,563
|
62,341
|
142,399
|
125,276
|
|
| Net income (loss) |
3,764
|
4,223
|
14,586
|
19,157
|
|
| Other Segment Disclosures [Abstract] |
|
|
|
|
|
| Loss on change in fair value of contingent consideration |
1,752
|
65
|
1,989
|
279
|
|
| Depreciation and amortization expense |
13,170
|
7,583
|
26,050
|
15,139
|
|
| Interest (income) expense, net |
3
|
24
|
14
|
34
|
|
| (Gain) loss on divestitures |
|
0
|
|
0
|
|
| Loss on extinguishment and modification of debt |
0
|
|
0
|
0
|
|
| Share of net earnings of equity method investee |
0
|
|
0
|
|
|
| Capital expenditures |
|
|
7,002
|
5,712
|
|
| Total assets |
694,213
|
|
694,213
|
|
712,639
|
| Mainstreet Insurance Solutions Segment | Commissions revenue |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
67,250
|
61,309
|
143,114
|
132,959
|
|
| Mainstreet Insurance Solutions Segment | Profit-sharing revenue |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
6,391
|
3,919
|
10,714
|
8,014
|
|
| Mainstreet Insurance Solutions Segment | Consulting and service fee revenue |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
76
|
0
|
76
|
0
|
|
| Mainstreet Insurance Solutions Segment | Policy fee and installment fee revenue |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
0
|
0
|
0
|
0
|
|
| Mainstreet Insurance Solutions Segment | Assumed premium earned |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
0
|
0
|
0
|
0
|
|
| Mainstreet Insurance Solutions Segment | Other income |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
1,589
|
1,280
|
3,029
|
3,346
|
|
| Mainstreet Insurance Solutions Segment | Inside advisor commissions |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
8,145
|
7,920
|
17,024
|
16,261
|
|
| Mainstreet Insurance Solutions Segment | Fixed compensation |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
10,527
|
9,995
|
20,752
|
19,521
|
|
| Mainstreet Insurance Solutions Segment | Benefits and other |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
7,257
|
6,241
|
14,499
|
12,689
|
|
| Mainstreet Insurance Solutions Segment | Share-based compensation |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
1,369
|
1,655
|
2,785
|
2,908
|
|
| Mainstreet Insurance Solutions Segment | Severance |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
957
|
39
|
1,815
|
495
|
|
| Mainstreet Insurance Solutions Segment | Colleague earnout incentives |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
|
0
|
|
0
|
|
| Corporate Segment and Other Operating Segment |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Investment income |
245
|
459
|
706
|
1,213
|
|
| Total revenues |
(17,978)
|
(18,528)
|
(33,540)
|
(35,839)
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
11,114
|
11,993
|
19,942
|
22,028
|
|
| Outside commissions |
(18,223)
|
(18,987)
|
(34,246)
|
(37,052)
|
|
| Selling Expense |
2,646
|
2,206
|
4,443
|
4,357
|
|
| Operating Expenses |
9,261
|
6,930
|
152,872
|
15,978
|
|
| Administrative expense |
42,412
|
32,920
|
90,705
|
66,845
|
|
| All other (income) expense, net |
(29)
|
667
|
(144,591)
|
747
|
|
| Total expense |
47,181
|
35,729
|
89,125
|
72,903
|
|
| Net income (loss) |
(65,159)
|
(54,257)
|
(122,665)
|
(108,742)
|
|
| Other Segment Disclosures [Abstract] |
|
|
|
|
|
| Loss on change in fair value of contingent consideration |
0
|
0
|
0
|
0
|
|
| Depreciation and amortization expense |
1,863
|
1,448
|
3,570
|
2,850
|
|
| Interest (income) expense, net |
40,224
|
31,187
|
79,168
|
61,044
|
|
| (Gain) loss on divestitures |
|
1,611
|
|
1,611
|
|
| Loss on extinguishment and modification of debt |
129
|
|
7,538
|
2,394
|
|
| Share of net earnings of equity method investee |
0
|
|
0
|
|
|
| Capital expenditures |
|
|
1,721
|
3,985
|
|
| Total assets |
73,372
|
|
73,372
|
|
$ 97,623
|
| Corporate Segment and Other Operating Segment | Commissions revenue |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
(18,027)
|
(18,806)
|
(33,844)
|
(36,871)
|
|
| Corporate Segment and Other Operating Segment | Profit-sharing revenue |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
0
|
0
|
0
|
0
|
|
| Corporate Segment and Other Operating Segment | Consulting and service fee revenue |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
0
|
0
|
0
|
0
|
|
| Corporate Segment and Other Operating Segment | Policy fee and installment fee revenue |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
0
|
0
|
0
|
0
|
|
| Corporate Segment and Other Operating Segment | Assumed premium earned |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
0
|
0
|
0
|
0
|
|
| Corporate Segment and Other Operating Segment | Other income |
|
|
|
|
|
| Revenues: |
|
|
|
|
|
| Commissions and fees |
(196)
|
(181)
|
(402)
|
(181)
|
|
| Corporate Segment and Other Operating Segment | Inside advisor commissions |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
0
|
0
|
0
|
0
|
|
| Corporate Segment and Other Operating Segment | Fixed compensation |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
2,670
|
2,801
|
5,071
|
4,762
|
|
| Corporate Segment and Other Operating Segment | Benefits and other |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
1,967
|
3,072
|
5,518
|
6,672
|
|
| Corporate Segment and Other Operating Segment | Share-based compensation |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
5,603
|
5,996
|
8,378
|
10,412
|
|
| Corporate Segment and Other Operating Segment | Severance |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
$ 874
|
124
|
$ 975
|
182
|
|
| Corporate Segment and Other Operating Segment | Colleague earnout incentives |
|
|
|
|
|
| Expenses [Abstract] |
|
|
|
|
|
| Colleague compensation and benefits |
|
$ 0
|
|
$ 0
|
|