Subsequent Events (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended		1 Months Ended
	Dec. 31, 2012	Feb. 26, 2014 Subsequent Event [Member]	Feb. 26, 2014 Rantoul, Illinois [Member] Subsequent Event [Member] sqft	Feb. 26, 2014 Parachute, Colorado [Member] Subsequent Event [Member]	Feb. 26, 2014 Auburn Hills, Michigan [Member] Subsequent Event [Member]	Feb. 26, 2014 Former LCIF II Partners [Member] Subsequent Event [Member]
Subsequent Event [Line Items]
Square feet			813,000
Payments to acquire real estate			$ 41,100	$ 13,928
Lease term				19 years	14 years
Long-term Debt		99,000
Fixed LIBOR interest rate due from interest rate swap		1.155%
Forward commitment to acquire real estate					40,025
Partners' Capital Account, Units						170,193
Cash received from OP units	$ 8,107					$ 1,962