BENEFIT PLANS - Costs of Retirement Plans (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
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| Compensation and Retirement Disclosure [Abstract] | ||||
| Supplemental Executive Retirement Plan And Supplemental Retirement Income Plan | $ 567 | $ 578 | $ 1,879 | $ 1,735 |
| Defined Contribution Plan, Cost Recognized | 9,470 | 8,224 | 25,738 | 23,747 |
| Benefit Cost | $ 10,037 | $ 8,802 | $ 27,617 | $ 25,482 |
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- Definition Benefit Cost No definition available.
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- Definition Supplemental Executive Retirement Plan And Supplemental Retirement Income Plan. No definition available.
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- References No definition available.
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- Definition The amount of the cost recognized during the period for defined contribution plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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