Segment Information - Summarized Financial Information Reportable Segments (Detail) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 |
Sep. 30, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
Sep. 30, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
Segment Reporting Information [Line Items] | |||||||||||
Total revenues | $ 508,748 | $ 530,850 | $ 473,187 | $ 501,461 | $ 474,316 | $ 475,646 | $ 466,305 | $ 465,080 | $ 2,014,246 | $ 1,881,347 | $ 1,766,629 |
Investment income | 2,746 | 1,626 | 1,456 | ||||||||
Amortization | 86,544 | 85,446 | 86,663 | ||||||||
Depreciation | 22,834 | 22,698 | 21,003 | ||||||||
Interest expense | 40,580 | 38,316 | 39,481 | ||||||||
Income before income taxes | 100,611 | $ 142,500 | $ 100,910 | $ 118,441 | 106,334 | $ 124,419 | $ 108,002 | $ 110,967 | 462,462 | 449,722 | 423,499 |
Total assets | 6,688,668 | 5,747,550 | 6,688,668 | 5,747,550 | 5,262,734 | ||||||
Capital expenditures | 41,520 | 24,192 | 17,765 | ||||||||
Operating Segments | Retail | |||||||||||
Segment Reporting Information [Line Items] | |||||||||||
Total revenues | 1,042,763 | 943,460 | 917,406 | ||||||||
Investment income | 2 | 8 | 37 | ||||||||
Amortization | 44,386 | 42,164 | 43,447 | ||||||||
Depreciation | 5,289 | 5,210 | 6,191 | ||||||||
Interest expense | 35,969 | 31,133 | 38,216 | ||||||||
Income before income taxes | 217,845 | 196,616 | 188,001 | ||||||||
Total assets | 5,850,045 | 4,255,515 | 5,850,045 | 4,255,515 | 3,854,393 | ||||||
Capital expenditures | 6,858 | 4,494 | 5,951 | ||||||||
Operating Segments | National Programs | |||||||||||
Segment Reporting Information [Line Items] | |||||||||||
Total revenues | 494,463 | 479,813 | 448,516 | ||||||||
Investment income | 506 | 384 | 628 | ||||||||
Amortization | 25,954 | 27,277 | 27,920 | ||||||||
Depreciation | 5,486 | 6,325 | 7,868 | ||||||||
Interest expense | 26,181 | 35,561 | 45,738 | ||||||||
Income before income taxes | 117,375 | 109,961 | 91,762 | ||||||||
Total assets | 2,940,097 | 3,267,486 | 2,940,097 | 3,267,486 | 2,711,378 | ||||||
Capital expenditures | 12,391 | 5,936 | 6,977 | ||||||||
Operating Segments | Wholesale Brokerage | |||||||||||
Segment Reporting Information [Line Items] | |||||||||||
Total revenues | 287,014 | 271,737 | 243,103 | ||||||||
Investment income | 165 | 0 | 4 | ||||||||
Amortization | 11,391 | 11,456 | 10,801 | ||||||||
Depreciation | 1,628 | 1,885 | 1,975 | ||||||||
Interest expense | 5,254 | 6,263 | 3,976 | ||||||||
Income before income taxes | 70,171 | 68,844 | 62,623 | ||||||||
Total assets | 1,283,877 | 1,260,239 | 1,283,877 | 1,260,239 | 1,108,829 | ||||||
Capital expenditures | 2,518 | 1,836 | 1,301 | ||||||||
Operating Segments | Services | |||||||||||
Segment Reporting Information [Line Items] | |||||||||||
Total revenues | 189,246 | 165,372 | 156,365 | ||||||||
Investment income | 205 | 299 | 283 | ||||||||
Amortization | 4,813 | 4,548 | 4,485 | ||||||||
Depreciation | 1,558 | 1,600 | 1,881 | ||||||||
Interest expense | 2,869 | 3,522 | 4,950 | ||||||||
Income before income taxes | 34,508 | 30,498 | 24,338 | ||||||||
Total assets | 471,572 | 399,240 | 471,572 | 399,240 | 371,645 | ||||||
Capital expenditures | 1,525 | 1,033 | 656 | ||||||||
Other | |||||||||||
Segment Reporting Information [Line Items] | |||||||||||
Total revenues | 760 | 20,965 | 1,239 | ||||||||
Investment income | 1,868 | 935 | 504 | ||||||||
Amortization | 0 | 1 | 10 | ||||||||
Depreciation | 8,873 | 7,678 | 3,088 | ||||||||
Interest expense | (29,693) | (38,163) | (53,399) | ||||||||
Income before income taxes | 22,563 | 43,803 | 56,775 | ||||||||
Total assets | $ (3,856,923) | $ (3,434,930) | (3,856,923) | (3,434,930) | (2,783,511) | ||||||
Capital expenditures | $ 18,228 | $ 10,893 | $ 2,880 |