Annual report pursuant to Section 13 and 15(d)

FAIR VALUE MEASUREMENTS - Narrative (Details)

v3.3.1.900
FAIR VALUE MEASUREMENTS - Narrative (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Hedge
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Number of cash flow hedges | Hedge   1
Unrealized losses forecasted to be included in earnings transferred from AOCI in the next twelve months $ 1.1  
Reported Value Measurement [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fixed rate mortgages, fair value 182.6 $ 153.4
Level 2 [Member] | Recurring [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fixed rate mortgages, fair value $ 189.3 $ 158.3
Weighted average market interest rate 3.41% 3.59%
Weighted average contractual interest rate 5.10% 5.11%
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Notional amount $ 199.4 $ 125.0
Weighted average remaining term 2 years 5 months  
Weighted average fixed rate 1.25%  
Not Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Notional amount   $ 7.6