DEBT - Schedule of Maturities of Debt (Details) $ in Thousands	Jun. 30, 2015 USD ($)
Debt Instrument [Line Items]
July 1, 2015 through December 31, 2015	$ 1,705
2016	3,494
2017	3,608
2018	325,727
2019	3,849
Thereafter	898,715
Total	1,237,098
Mortgage Indebtedness [Member]
Debt Instrument [Line Items]
July 1, 2015 through December 31, 2015	1,705
2016	3,494
2017	3,608
2018	3,727
2019	3,849
Thereafter	125,869
Total	142,252
Senior Notes [Member]
Debt Instrument [Line Items]
July 1, 2015 through December 31, 2015	0
2016	0
2017	0
2018	0
2019	0
Thereafter	700,000
Total	700,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
July 1, 2015 through December 31, 2015	0
2016	0
2017	0
2018	122,000
2019	0
Thereafter	0
Total	122,000
Term Loans [Member]
Debt Instrument [Line Items]
July 1, 2015 through December 31, 2015	0
2016	0
2017	0
2018	200,000
2019	0
Thereafter	72,846
Total	$ 272,846