RELATED-PARTY TRANSACTIONS (Details) (USD $)			3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended			3 Months Ended		9 Months Ended																	3 Months Ended		9 Months Ended			3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended			0 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Third-party management companies	Sep. 30, 2013 Third-party management companies	Sep. 30, 2014 Third-party management companies	Sep. 30, 2013 Third-party management companies	Sep. 30, 2014 Management Company Asset management fees	Sep. 30, 2013 Management Company Asset management fees	Sep. 30, 2014 Management Company Asset management fees	Sep. 30, 2013 Management Company Asset management fees	Dec. 31, 2013 Management Company Asset management fees	Sep. 30, 2014 Management Company Property management fees	Sep. 30, 2013 Management Company Property management fees	Sep. 30, 2014 Management Company Property management fees	Sep. 30, 2013 Management Company Property management fees	Sep. 30, 2014 Management Company 0 - 500,000	Sep. 30, 2014 Management Company 0 - 500,000 Minimum	Sep. 30, 2014 Management Company 0 - 500,000 Maximum	Sep. 30, 2014 Management Company 500,000 - 1,000,000	Sep. 30, 2014 Management Company 500,000 - 1,000,000 Minimum	Sep. 30, 2014 Management Company 500,000 - 1,000,000 Maximum	Sep. 30, 2014 Management Company 1,000,000 - 1,500,000	Sep. 30, 2014 Management Company 1,000,000 - 1,500,000 Minimum	Sep. 30, 2014 Management Company 1,000,000 - 1,500,000 Maximum	Sep. 30, 2014 Management Company 1,500,000 - 4,000,000	Sep. 30, 2014 Management Company 1,500,000 - 4,000,000 Minimum	Sep. 30, 2014 Management Company 1,500,000 - 4,000,000 Maximum	Sep. 30, 2014 Management Company 4,000,000 - 20,000,000	Sep. 30, 2014 Management Company 4,000,000 - 20,000,000 Minimum	Sep. 30, 2014 Management Company 4,000,000 - 20,000,000 Maximum	Sep. 30, 2014 CIM Management Entities	Sep. 30, 2013 CIM Management Entities	Sep. 30, 2014 CIM Management Entities	Sep. 30, 2013 CIM Management Entities	Dec. 31, 2013 CIM Management Entities	Sep. 30, 2014 CIM Management Entities On-site personnel	Sep. 30, 2013 CIM Management Entities On-site personnel	Sep. 30, 2014 CIM Management Entities On-site personnel	Sep. 30, 2013 CIM Management Entities On-site personnel	Sep. 30, 2014 CIM Management Entities Development management fees	Sep. 30, 2013 CIM Management Entities Development management fees	Sep. 30, 2014 CIM Management Entities Development management fees	Sep. 30, 2013 CIM Management Entities Development management fees	Sep. 30, 2014 An affiliate of CIM Management Entities Project costs expensed and are to be reimbursed	Sep. 30, 2014 An affiliate of CIM Management Entities Project costs expensed and are to be reimbursed	Sep. 30, 2014 An affiliate of CIM Management Entities Reimbursements for IT consultants	Sep. 30, 2014 An affiliate of CIM Management Entities Reimbursements for IT consultants	Sep. 30, 2014 CIM Management Entities and related parties	Dec. 31, 2013 CIM Management Entities and related parties	Mar. 11, 2014 Manager Master Services Agreement	Sep. 30, 2014 Manager Master Services Agreement	Sep. 30, 2014 Manager Master Services Agreement	Sep. 30, 2014 Manager Base Service Fee	Sep. 30, 2014 Manager Base Service Fee
Related-party transactions
Daily average gross fair value of investments																	$ 0	$ 500,000,000		$ 500,000,000	$ 1,000,000,000		$ 1,000,000,000	$ 1,500,000,000		$ 1,500,000,000	$ 4,000,000,000		$ 4,000,000,000	$ 20,000,000,000
Fee percentage																0.25%			0.2375%			0.225%			0.2125%			0.10%
Fees							5,821,000	5,442,000	17,300,000	16,282,000		1,404,000	1,172,000	3,935,000	3,534,000																					1,820,000	1,143,000	5,613,000	3,487,000	141,000	147,000	385,000	441,000	118,000	118,000	46,000	46,000						250,000	556,000
Due (from) to related parties	9,518,000	6,807,000					5,798,000		5,798,000		5,426,000																				2,624,000		2,624,000		1,445,000													29,000	64,000		961,000	961,000
Leasing commissions																															221,000	89,000	1,572,000	386,000
Management fee incurred related to the rental properties			401,000	303,000	1,212,000	975,000
Fees payable per year under agreement																																																		1,000,000
Compensation expensed for performing other services																																																			$ 405,000	$ 695,000