Schedule III - Supplementary Insurance Information (Details) - USD ($)
$ in Thousands |
12 Months Ended |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
| Supplementary Insurance Information, by Segment [Line Items] |
|
|
|
| Deferred policy acquisition costs and value of business acquired |
$ 194,787
|
$ 190,648
|
$ 184,100
|
| Claim liabilities |
487,943
|
491,765
|
390,086
|
| Liability for future policy benefits |
321,232
|
352,370
|
328,293
|
| Unearned premiums |
79,310
|
80,260
|
82,656
|
| Other policy claims and benefits payable |
0
|
0
|
0
|
| Premium revenue |
2,890,641
|
2,783,154
|
2,128,566
|
| Net investment income |
48,913
|
45,174
|
47,540
|
| Claims incurred |
2,472,191
|
2,318,715
|
1,747,595
|
| Amortization of deferred policy acquisition costs and value of business acquired |
37,700
|
43,594
|
43,638
|
| Other operating expenses |
456,194
|
475,127
|
453,556
|
| Net premiums written |
2,885,504
|
2,777,053
|
2,127,719
|
| Managed Care [Member] |
|
|
|
| Supplementary Insurance Information, by Segment [Line Items] |
|
|
|
| Deferred policy acquisition costs and value of business acquired |
0
|
0
|
0
|
| Claim liabilities |
349,047
|
348,297
|
249,330
|
| Liability for future policy benefits |
0
|
0
|
0
|
| Unearned premiums |
2,889
|
3,489
|
4,340
|
| Other policy claims and benefits payable |
0
|
0
|
0
|
| Premium revenue |
2,648,469
|
2,549,522
|
1,896,142
|
| Net investment income |
15,102
|
11,779
|
15,010
|
| Claims incurred |
2,347,547
|
2,196,693
|
1,629,095
|
| Amortization of deferred policy acquisition costs and value of business acquired |
0
|
0
|
0
|
| Other operating expenses |
375,262
|
393,407
|
374,244
|
| Net premiums written |
2,648,469
|
2,549,173
|
1,896,142
|
| Life Insurance [Member] |
|
|
|
| Supplementary Insurance Information, by Segment [Line Items] |
|
|
|
| Deferred policy acquisition costs and value of business acquired |
177,811
|
172,284
|
164,367
|
| Claim liabilities |
42,858
|
44,601
|
43,670
|
| Liability for future policy benefits |
321,232
|
352,370
|
328,293
|
| Unearned premiums |
8,122
|
6,596
|
5,158
|
| Other policy claims and benefits payable |
0
|
0
|
0
|
| Premium revenue |
156,856
|
148,115
|
142,485
|
| Net investment income |
24,877
|
24,457
|
23,717
|
| Claims incurred |
86,924
|
82,561
|
74,850
|
| Amortization of deferred policy acquisition costs and value of business acquired |
12,530
|
17,661
|
18,260
|
| Other operating expenses |
60,821
|
52,338
|
50,531
|
| Net premiums written |
152,506
|
144,262
|
142,485
|
| Property and Casualty Insurance [Member] |
|
|
|
| Supplementary Insurance Information, by Segment [Line Items] |
|
|
|
| Deferred policy acquisition costs and value of business acquired |
16,976
|
18,364
|
19,733
|
| Claim liabilities |
96,977
|
99,796
|
97,451
|
| Liability for future policy benefits |
0
|
0
|
0
|
| Unearned premiums |
68,299
|
70,175
|
73,158
|
| Other policy claims and benefits payable |
0
|
0
|
0
|
| Premium revenue |
87,945
|
87,633
|
92,143
|
| Net investment income |
8,891
|
8,706
|
8,600
|
| Claims incurred |
40,766
|
42,600
|
46,330
|
| Amortization of deferred policy acquisition costs and value of business acquired |
25,170
|
25,933
|
25,378
|
| Other operating expenses |
18,826
|
19,533
|
18,991
|
| Net premiums written |
87,158
|
85,734
|
89,092
|
| Other Non-reportable Segments, Parent Company Operations and Net Consolidating Entries [Member] |
|
|
|
| Supplementary Insurance Information, by Segment [Line Items] |
|
|
|
| Deferred policy acquisition costs and value of business acquired |
0
|
0
|
0
|
| Claim liabilities |
(939)
|
(929)
|
(365)
|
| Liability for future policy benefits |
0
|
0
|
0
|
| Unearned premiums |
0
|
0
|
0
|
| Other policy claims and benefits payable |
0
|
0
|
0
|
| Premium revenue |
(2,629)
|
(2,116)
|
(2,204)
|
| Net investment income |
43
|
232
|
213
|
| Claims incurred |
(3,046)
|
(3,139)
|
(2,680)
|
| Amortization of deferred policy acquisition costs and value of business acquired |
0
|
0
|
0
|
| Other operating expenses |
1,285
|
9,849
|
9,790
|
| Net premiums written |
$ (2,629)
|
$ (2,116)
|
$ 0
|