BENEFIT PLANS - Costs of Retirement Plans (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2016 |
Mar. 31, 2015 |
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| Compensation and Retirement Disclosure [Abstract] | ||
| Supplemental Executive Retirement Plan And Supplemental Retirement Income Plan | $ 714 | $ 578 |
| Defined Contribution Plan, Cost Recognized | 7,920 | 7,445 |
| Benefit Cost | $ 8,634 | $ 8,023 |
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- Definition Benefit Cost No definition available.
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- References 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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