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EMPLOYEE SAVINGS PLANS | 12 Months Ended
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Dec. 31, 2015
Employee Savings Plans [Abstract] |
EMPLOYEE SAVINGS PLANS |
| 9. | EMPLOYEE SAVINGS PLANS
Substantially all of the Company’s employees are eligible to participate in a defined contribution plan under Section 401(k) of the Internal Revenue Code. The Company also provides a non-qualified defined contribution plan for senior management and certain key employees. Both plans provide for the Company to match, in cash, a percentage of each employee’s contributions up to certain limits. The Company’s matching contribution and related expense for these plans was approximately $7.2 million, $5.7 million, and $4.9 million for 2015, 2014, and 2013, respectively.

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