|
Health Care Costs Payable - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
|
| Health Care Organizations [Abstract] | ||
| Increase (decrease) in prior year estimates of health care costs payable | $ 3,429 | $ (16,587) |