Debt - Schedule of Outstanding Debt (Details) (Parenthetical) - 6 months ended Jun. 30, 2015	Total
Revolving Credit Facility, Libor Plus 1.50%, Maturing In September 2018 [Member] | LIBOR and Prime Rate [Member]
Note payable variable interest rate basis	1.50%
Note payable maturity date	September 2018
Note Payable, Libor Plus 1.50%, Maturing In September 2018 [Member] | LIBOR and Prime Rate [Member]
Note payable variable interest rate basis	1.50%
Note payable maturity date	September 2018
Note Payable, Libor Plus 1.50%, Maturing In September 2018 One [Member] | LIBOR and Prime Rate [Member]
Note payable variable interest rate basis	1.50%
Note payable maturity date	September 2018
Note Payable, Greater Of 2% Or Libor Plus 2.15%, Maturing In April 2022 [Member] | Maximum [Member]
Note payable variable interest rate basis	2.00%
Note payable maturity date	April 2022
Note Payable, Greater Of 2% Or Libor Plus 2.15%, Maturing In April 2022 [Member] | LIBOR Rate[Member]
Note payable variable interest rate basis	2.15%
Note payable maturity date	April 2022
Note Payable, Libor Plus 2.25%, Maturing In January 2022 [Member] | LIBOR Rate[Member]
Note payable variable interest rate basis	2.25%
Note payable maturity date	January 2022
Notes Payable, 4.12%, 4.33% And 4.60%, Maturing In March 2017 [Member]
Note payable variable interest rate basis	4.12%
Note payable maturity date	March 2017
Notes Payable, 4.12%, 4.33% And 4.60%, Maturing In March 2017 One [Member]
Note payable variable interest rate basis	4.33%
Note payable maturity date	March 2017
Notes Payable, 4.12%, 4.33% And 4.60%, Maturing In March 2017 Two [Member]
Note payable variable interest rate basis	4.60%
Note payable maturity date	March 2017
Note Payable, Libor Plus 2.25%, Maturing In January 2020 [Member] | LIBOR Rate[Member]
Note payable variable interest rate basis	2.25%
Note payable maturity date	April 2020
Note Payable, Prime Plus 0.375% Or Libor Plus 2.375%, Maturing In September 2016 [Member] | LIBOR Rate[Member]
Note payable variable interest rate basis	2.375%
Note payable maturity date	September 2016
Note Payable, Prime Plus 0.375% Or Libor Plus 2.375%, Maturing In September 2016 [Member] | Prime Rate [Member]
Note payable variable interest rate basis	0.375%
Note payable maturity date	September 2016
Note Payable, 4.65% Matured In April 2015 [Member]
Note payable variable interest rate basis	4.65%
Note payable maturity date	April 2015