Claims Accruals (Details) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2013
|
Dec. 31, 2012
|
---|---|---|
Claims Accruals [Line Items] | ||
Claims accrual | $ 194,051 | $ 185,506 |
Less: current portion | 75,469 | 86,587 |
Long-term claim accruals | 118,582 | 98,919 |
Auto And Collision Liability [Member]
|
||
Claims Accruals [Line Items] | ||
Claims accrual | 102,462 | 93,798 |
Workers Compensation Liability [Member]
|
||
Claims Accruals [Line Items] | ||
Claims accrual | 70,145 | 64,237 |
Owner Operator Claims Liability [Member]
|
||
Claims Accruals [Line Items] | ||
Claims accrual | 8,610 | 13,402 |
Group Medical Liability [Member]
|
||
Claims Accruals [Line Items] | ||
Claims accrual | 9,946 | 11,709 |
Cargo Damage Liability [Member]
|
||
Claims Accruals [Line Items] | ||
Claims accrual | $ 2,888 | $ 2,360 |