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DEBT - Senior Notes (Details) - USD ($)
1 Months Ended 12 Months Ended
Jul. 31, 2014
Jun. 30, 2013
Dec. 31, 2016
Feb. 28, 2017
Feb. 16, 2017
Feb. 14, 2017
Debt Instrument [Line Items]            
Notice of redemption     $ 1,248,000,000      
Senior Notes            
Debt Instrument [Line Items]            
Debt defaults     0      
5.5% Senior Notes | Senior Notes            
Debt Instrument [Line Items]            
Debt issuance costs $ 5,100,000          
Events of default, period of payment default 30 days          
Events of default, failure to comply with covenants, period after notice 180 days          
Events of default, failure to comply with other agreements in the indenture, period after notice 30 days          
Events of default, failure to pay final judgments, in excess of 20.0 million $ 20,000,000          
Declaration of immediate payment, holding percent of principal amount required 25.00%          
Summit Holdings and Finance Corporation | 5.5% Senior Notes | Senior Notes            
Debt Instrument [Line Items]            
Senior unsecured notes $ 300,000,000          
Stated interest rate 5.50%          
Maximum percent of aggregate principal amount redeemable 35.00%          
Summit Holdings and Finance Corporation | 7.5% Senior Notes | Senior Notes            
Debt Instrument [Line Items]            
Senior unsecured notes   $ 300,000,000        
Stated interest rate   7.50%        
Debt issuance costs   $ 7,400,000        
Debt defaults     $ 0      
Summit Holdings            
Debt Instrument [Line Items]            
Cumulative percentage ownership in subsidiary     100.00%      
Prior to August 15, 2017 | Summit Holdings and Finance Corporation | 5.5% Senior Notes | Senior Notes            
Debt Instrument [Line Items]            
Redemption price, expressed as percentage of principal amount 105.50%          
On and after August 15, 2017 | Summit Holdings and Finance Corporation | 5.5% Senior Notes | Senior Notes            
Debt Instrument [Line Items]            
Redemption price, expressed as percentage of principal amount 104.125%          
On and after August 15, 2020 | Summit Holdings and Finance Corporation | 5.5% Senior Notes | Senior Notes            
Debt Instrument [Line Items]            
Redemption price, expressed as percentage of principal amount 100.00%          
July 1, 2016 - June 30, 2019 | Summit Holdings and Finance Corporation | 7.5% Senior Notes | Senior Notes            
Debt Instrument [Line Items]            
Redemption price, expressed as percentage of principal amount   105.625%        
July 1, 2019 | Summit Holdings and Finance Corporation | 7.5% Senior Notes | Senior Notes            
Debt Instrument [Line Items]            
Redemption price, expressed as percentage of principal amount   100.00%        
Finance Corp | Summit Holdings            
Debt Instrument [Line Items]            
Cumulative percentage ownership in subsidiary 100.00%          
Subsequent Event | Senior Unsecured Notes Due April 2025 | Unsecured Debt            
Debt Instrument [Line Items]            
Stated interest rate       5.75%    
Debt face amount       $ 500,000,000    
Subsequent Event | Summit Holdings and Finance Corporation | 7.5% Senior Notes | Senior Notes            
Debt Instrument [Line Items]            
Amount validly tendered           $ 276,900,000
Notice of redemption         $ 23,100,000