XML 49 R37.htm IDEA: XBRL DOCUMENT v3.10.0.1
Investment in Unconsolidated Entity - Additional Information (Detail)
$ in Thousands
9 Months Ended 12 Months Ended
Jul. 05, 2018
USD ($)
Jun. 21, 2017
USD ($)
board_member
Location
Sep. 30, 2018
USD ($)
Sep. 30, 2017
USD ($)
Dec. 31, 2017
USD ($)
Jun. 29, 2018
Schedule of Equity Method Investments [Line Items]            
Investment in unconsolidated entity     $ 3,760 $ 63,600    
Proceeds from non-controlling interest for investment in unconsolidated entity     $ 752 $ 12,720    
Carrier Enterprise I            
Schedule of Equity Method Investments [Line Items]            
Ownership percentage by parent   80.00%        
Ownership percentage, by non-controlling owners   20.00%        
Russell Sigler Inc            
Schedule of Equity Method Investments [Line Items]            
Ownership interest acquired   35.00%       36.30%
Investment in unconsolidated entity $ 3,760 $ 63,600        
Contribution to investment in unconsolidated entity by controlling interest 3,008 50,880        
Proceeds from non-controlling interest for investment in unconsolidated entity $ 752 $ 12,720        
Ownership percentage needed for right to purchase up to 100%   85.00%        
Total number of board members | board_member   6        
Number of board members that can be appointed based on ownership | board_member   2        
Equity method investment, additional ownership interest acquired           1.40%
Russell Sigler Inc | Western United States            
Schedule of Equity Method Investments [Line Items]            
Number of locations | Location   30        
Russell Sigler sales         $ 680,000