LEASES - Chestnut Petroleum Dist. Inc. - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	1 Months Ended	3 Months Ended
	Jun. 30, 2013 Operator	Mar. 31, 2014 Property	Mar. 31, 2013	Dec. 31, 2013
Leases [Line Items]
Lease revenue percentage		16.00%	10.00%
Number of locations (operators) involved in the proceedings	24
Number of former operators have withdrawn their appeals	14
Number of operators remain in the site during their court appeal	10
Number of properties recapture and sever from NECG		31
Bad debt reserve		$ 697	$ (1,831)
Bad debt reserve, total		3,988		3,248
Reserved deferred rent receivable		5,611
CPD NY and NECG [Member]
Leases [Line Items]
Number of leased properties		142
Number of unitary leases		2
Lease revenue percentage		20.00%	28.00%
CPD NY [Member]
Leases [Line Items]
Number of leased properties		58
NECG Holdings Corp [Member]
Leases [Line Items]
Number of leased properties		84
Bad debt reserve		457
Bad debt reserve, total		2,222
Non-cash allowances for deferred rental receivable		$ 836