Significant Accounting Policies Self-Insurance Workers' Compensation (Details) - Workers' Compensation [Member] - USD ($) $ in Thousands |
Jun. 30, 2016 |
Dec. 31, 2015 |
---|---|---|
Liability for Claims and Claims Adjustment Expense [Line Items] | ||
Self Insurance Reserve | $ 19,664 | $ 18,276 |
Stop-Loss Insurance limit per claim [Member] | ||
Liability for Claims and Claims Adjustment Expense [Line Items] | ||
Self Insurance Limits | 500 | |
Stop-Loss Insurance limit per claim [Member] | TEXAS | ||
Liability for Claims and Claims Adjustment Expense [Line Items] | ||
Self Insurance Limits | 750 | |
Loss-Sensitive limit per claim [Member] [Member] | Other states, except California, Texas and Washington [Domain] | ||
Liability for Claims and Claims Adjustment Expense [Line Items] | ||
Self Insurance Limits | $ 350 |