Annual report pursuant to Section 13 and 15(d)

EMPLOYEE BENEFIT PLANS - 401(k) and Deferred Compensation Plans (Details)

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EMPLOYEE BENEFIT PLANS - 401(k) and Deferred Compensation Plans (Details)
 12 Months Ended
Dec. 31, 2017
USD ($)
insurance_policy
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Defined Contribution 401(k) Plan      
Requisite service period for full-time employees to participate in contribution plan 3 months    
Period of service after which the non-full time employees are eligible to participate in defined contribution plan 1 year    
Requisite service hours for non full-time employees to participate in contribution plan 1000 hours    
Employer's matching contribution on each dollar for the first 6 percent of participant's contribution 0.50    
Participant's contribution to the plan, eligible for employer's matching contribution of fifty cents 1    
Maximum percentage of participant contributions eligible for employer contribution match towards defined contribution plan 6.00%    
Company contributions to defined contribution plan $ 12,100,000 $ 11,000,000 $ 10,200,000
Percentage of Rollins, Inc. Common Stock to plan assets 38.80% 36.40% 33.50%
Administrative fees paid (less than) $ 100,000 $ 100,000 $ 100,000
Nonqualified Deferred Compensation Plan      
Maximum percentage of base salary to be deferred 50.00%    
Maximum percentage of annual bonus to be deferred 85.00%    
Minimum deferral amount per plan year $ 2,000    
Maximum discretionary contributions by employer $ 245,000    
Number of life insurance policies | insurance_policy 70    
Life insurance policies, net face value $ 43,400,000    
Cash surrender value of life insurance policies 18,300,000 15,700,000  
Estimated future life insurance payments      
2018 590,000    
2019 614,000    
2020 638,000    
2021 664,000    
2022 690,000    
Total 3,196,000    
Total expense/(income) related to deferred compensation 241,000 230,000 $ 231,000
Deferred compensation assets 18,400,000 15,900,000  
Deferred compensation liability $ 18,400,000 $ 15,700,000