Quarterly report pursuant to Section 13 or 15(d)

LOANS PAYABLE AND OTHER BORROWINGS - Narrative (Details)

v3.10.0.1
LOANS PAYABLE AND OTHER BORROWINGS - Narrative (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2018
USD ($)
Jun. 30, 2017
USD ($)
Jun. 30, 2018
USD ($)
Jun. 30, 2017
USD ($)
Dec. 31, 2017
USD ($)
Line of Credit Facility [Line Items]          
Proceeds from Lines of Credit $ 285,000,000 $ 85,000,000 $ 285,000,000 $ 245,000,000  
Repayments of Lines of Credit 285,000,000 $ 145,000,000 285,000,000 $ 260,000,000  
Revolving credit facility [Member] | Line of Credit [Member]          
Line of Credit Facility [Line Items]          
Current borrowing capacity 780,000,000   780,000,000    
Maximum borrowing capacity 880,000,000   880,000,000    
Minimum tangible net worth $ 1,100,000,000   $ 1,100,000,000    
Leverage ratio 0.6   0.6    
Interest coverage ratio     1.5    
Outstanding borrowings under Credit Facility $ 0   $ 0   $ 0
Total LOCs 78,004,000   78,004,000   $ 74,672,000
Remaining borrowing capacity $ 702,000,000   $ 702,000,000