Organization
3 Months Ended
Mar. 31, 2015
Accounting Policies [Abstract]  
Organization
Organization
Company Organization and Operations
The Company operates as a self-administered and self-managed REIT that seeks to generate and deliver sustainable and attractive returns for stockholders by investing primarily in and managing a portfolio of single-tenant, operationally essential real estate throughout the United States that is generally leased on a long-term, triple-net basis predominantly to tenants operating within retail, office and industrial property types. Single tenant, operationally essential real estate generally refers to free-standing, commercial real estate facilities where tenants conduct activities that are essential to the generation of their sales and profits.
The Company’s operations are carried out through the Operating Partnership. OP Holdings, one of the Corporation's wholly-owned subsidiaries, is the sole general partner and owns 1.0% of the Operating Partnership. The Corporation and a wholly-owned subsidiary are the only limited partners and together own the remaining 99.0% of the Operating Partnership.

As of March 31, 2015, our undepreciated gross investment in real estate and loans totaled approximately $8.22 billion, representing investments in 2,547 properties, including properties securing mortgage loans made by the Company. Of this amount, 98.7% consisted of our gross investment in real estate, representing ownership of 2,402 properties, having a gross investment of $8.12 billion, and the remaining 1.3% consisted of commercial mortgage loans receivable, having a gross investment of $107.4 million, secured by the remaining 145 properties or other related assets.
Recent Developments

2015 Credit Facility    

On March 31, 2015, the Operating Partnership entered into a new $600.0 million unsecured Credit Agreement with various lenders with an initial term that expires on March 31, 2019 (extendable at the Operating Partnership's option to March 31, 2020, subject to certain requirements). The 2015 Credit Facility initially bears interest at a borrowing margin of LIBOR plus 1.70% and replaces the Operating Partnership’s previous secured $400.0 million revolving credit facility. The Credit Agreement includes an accordion feature to increase the size of the 2015 Credit Facility to up to $1.0 billion, subject to satisfying certain requirements and obtaining additional lender commitments.
ATM Program Activity    

During the three months ended March 31, 2015, the Corporation sold 6.6 million shares of its common stock having aggregate gross proceeds of $79.8 million and aggregate net sales proceeds of $78.6 million under its ATM Program.
Acquisitions and Dispositions

During the three months ended March 31, 2015, the Company purchased 53 properties, representing an aggregate gross investment in real estate properties of $265.5 million, which includes $0.2 million in revenue producing capital expenditures in existing properties. During the same period, the Company sold 15 properties for $77.2 million in gross sales proceeds. See Note 4 for additional discussion of the Company's investments.