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COMMITMENTS AND CONTINGENCIES (Tables)
12 Months Ended
Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Costs of Retirement Plans
Defined contribution plan expense, including matching contributions, was approximately (in thousands): 
2015
$
46,507

2014
30,112

2013
19,907

Schedule of Lease Expenses
Information regarding our lease expense is as follows (in thousands): 
2015
$
56,210

2014
56,871

2013
54,753

Operating Leases of Lessee Disclosure
Minimum future lease commitments under noncancelable lease agreements in excess of one year as of December 31, 2015, are as follows (in thousands): 
2016
$
43,888

2017
39,108

2018
31,349

2019
27,842

2020
22,437

Thereafter
108,845

Total
$
273,469