Annual report pursuant to Section 13 and 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2)

v3.10.0.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2)
$ in Thousands
12 Months Ended
Mar. 10, 2016
Dec. 31, 2018
USD ($)
deliverable
segment
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Accounting Policies [Abstract]          
Revenue from smaller wholly-owned subsidiaries as percentage of total revenue, maximum   5.00%      
Number of reportable business segments | segment   1      
Principles of Consolidation          
Maximum ownership interest (as a percent)   50.00%      
Revenue Recognition          
Initial contract term for pest control customers   1 year      
Number of deliverables | deliverable   2      
Revenues from foreign operations as percentage of total revenue   8.00% 8.00%    
Advertising          
Advertising   $ 69,875 $ 66,115 $ 61,258  
Cash and Cash Equivalents          
Maximum original maturity period of cash equivalents   3 months      
Cash held at various banking institutions   $ 115,485 $ 107,050 $ 142,785 $ 134,574
Cash held in foreign bank accounts   53,600      
Cash held in non-interest-bearing accounts   $ 61,900      
Stock split ratio 1.5