Business Combinations - Business Combination Pro Forma Information (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended								6 Months Ended	12 Months Ended
		Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues:
Premiums earned											$ 266,987	$ 218,315	$ 199,700
Commission and fee income											59,892	39,733	35,125
Investment income											5,024	5,123	5,716
Net realized gains (losses) on investments, available-for-sale											(11)	23	(29)
Total revenues		$ 88,536	$ 87,620	$ 80,631	$ 75,105	$ 67,928	$ 65,604	$ 67,120	$ 62,542		331,892	263,194	240,512
Costs and expenses:
Losses and loss adjustment expenses											219,031	161,302	142,839
Insurance operating expenses											105,254	87,328	82,822
Other operating expenses											1,126	996	987
Litigation settlement											3,677	187
Stock-based compensation											144	185	243
Depreciation											1,751	1,767	2,053
Amortization of identifiable intangible assets											514
Interest expense											2,967	1,706	1,738
Total costs and expenses											334,464	253,471	230,682
Income (loss) before income taxes		458	(4,524)	690	804	3,076	2,377	3,723	547		(2,572)	9,723	9,830
Provision (benefit) for income taxes											(642)	(18,345)	650
Net income (loss)		$ 287	$ (3,018)	$ 315	$ 486	$ 21,968	$ 2,120	$ 3,469	$ 511		$ (1,930)	$ 28,068	$ 9,180
Net income (loss) per share:
Basic											$ (0.05)	$ 0.68	$ 0.22
Diluted											$ (0.05)	$ 0.68	$ 0.22
Number of shares used to calculate net income (loss) per share:
Basic											41,030	40,985	40,930
Diluted											41,030	41,283	41,092
Titan Agencies Historical
Revenues:
Commission and fee income										$ 14,547		$ 28,222
Total revenues										14,547		28,222
Costs and expenses:
Insurance operating expenses										14,555		27,325
Total costs and expenses										14,555		27,325
Income (loss) before income taxes										(8)		897
Provision (benefit) for income taxes										(3)		359
Net income (loss)										$ (5)		538
Pro Forma Adjustments
Costs and expenses:
Insurance operating expenses	[1]										$ (81)
Depreciation	[2]										50	100
Amortization of identifiable intangible assets	[3]										320	942
Interest expense	[4]										1,190	2,426
Total costs and expenses											1,479	3,468
Income (loss) before income taxes											(1,479)	(3,468)
Provision (benefit) for income taxes	[5]										(592)	(1,387)
Net income (loss)											(887)	(2,081)
Pro Forma Combined
Revenues:
Premiums earned											266,987	218,315
Commission and fee income											74,439	67,955
Investment income											5,024	5,123
Net realized gains (losses) on investments, available-for-sale											(11)	23
Total revenues											346,439	291,416
Costs and expenses:
Losses and loss adjustment expenses											219,031	161,302
Insurance operating expenses											119,728	114,653
Other operating expenses											1,126	996
Litigation settlement											3,677	187
Stock-based compensation											144	185
Depreciation											1,801	1,867
Amortization of identifiable intangible assets											834	942
Interest expense											4,157	4,132
Total costs and expenses											350,498	284,264
Income (loss) before income taxes											(4,059)	7,152
Provision (benefit) for income taxes											(1,237)	(19,373)
Net income (loss)											$ (2,822)	$ 26,525
Net income (loss) per share:
Basic											$ (0.07)	$ 0.65
Diluted											$ (0.07)	$ 0.64
Number of shares used to calculate net income (loss) per share:
Basic											41,030	40,985
Diluted											41,030	41,283

[1] Elimination of acquisition costs incurred

[2] Depreciation expense related to acquired tangible asset

[3] Amortization expense related to acquired identifiable intangible asset

[4] Interest expense related to acquisition financing (including amortization of issuance costs)

[5] Calculated income tax effect of pro forma adjustments at the estimated combined federal and state statutory rate of 40%