Annual report pursuant to Section 13 and 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Franchising Program (Details)

v3.8.0.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Franchising Program (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2017
USD ($)
franchise
Dec. 31, 2016
USD ($)
franchise
Dec. 31, 2015
USD ($)
franchise
Franchisor Disclosure [Line Items]      
Notes receivable from franchises, maximum period 5 years    
Deferred franchise fees $ 3.4 $ 3.0 $ 2.9
Revenue from franchises 5.4 5.1 4.9
Maximum exposure to loss relating to the franchises 2.5 2.0 $ 1.5
Orkin franchises      
Franchisor Disclosure [Line Items]      
Notes receivable from franchises $ 5.9 $ 5.0  
Critter Control      
Franchisor Disclosure [Line Items]      
Number of franchises | franchise 89 94  
Notes receivable from franchises $ 0.2 $ 0.3  
United States      
Franchisor Disclosure [Line Items]      
Number of franchises | franchise 47 50 51
International      
Franchisor Disclosure [Line Items]      
Number of franchises | franchise 81 70 48