Premium and Other Receivables, Net (Details) - USD ($) $ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Premiums and Other Receivables [Line Items] | ||
| Premium | $ 91,528 | $ 92,600 |
| Self-funded group receivables | 57,728 | 73,552 |
| FEHBP | 14,321 | 13,859 |
| Agent balances | 25,495 | 25,424 |
| Accrued interest | 13,668 | 12,624 |
| Reinsurance recoverable | 58,295 | 48,506 |
| Other | 62,637 | 53,325 |
| Premiums and other receivables, total | 323,672 | 319,890 |
| Less allowance for doubtful receivables [Abstract] | ||
| Premium | 27,320 | 28,944 |
| Other | 9,987 | 8,300 |
| Premiums and other receivables, allowance | 37,307 | 37,244 |
| Premium and other receivables, net | 286,365 | 282,646 |
| Government of Puerto Rico [Member] | ||
| Premiums and Other Receivables [Line Items] | ||
| Premiums and other receivables, total | 57,750 | 78,230 |
| Less allowance for doubtful receivables [Abstract] | ||
| Premiums and other receivables, allowance | $ 18,812 | $ 19,133 |