Equity Investments in Real Estate (Details 2) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Ownership interest in equity investments:
Equity investments in real estate	$ 513,199	$ 514,147
Net Lease
Ownership interest in equity investments:
Equity investments in real estate	$ 243,349	240,345
Net Lease | C1000 Logistiek Vastgooed B.V | WPC
Ownership interest in equity investments:
Ownership interest, percentage	85.00%
Equity investments in real estate	$ 61,040	59,629
Net Lease | U-haul Moving Partners Inc And Mercury Partners LP | WPC
Ownership interest in equity investments:
Ownership interest, percentage	12.00%
Equity investments in real estate	$ 38,883	39,309
Net Lease | Bank Pekao S.A. | CPA 18 - Global
Ownership interest in equity investments:
Ownership interest, percentage	50.00%
Equity investments in real estate	$ 26,492	25,785
Net Lease | BPS Nevada, LLC | Third Party
Ownership interest in equity investments:
Ownership interest, percentage	15.00%
Equity investments in real estate	$ 21,960	22,007
Net Lease | State Farm | CPA 18 - Global
Ownership interest in equity investments:
Ownership interest, percentage	50.00%
Equity investments in real estate	$ 18,270	18,587
Net Lease | Apply Sorco | CPA 18 - Global
Ownership interest in equity investments:
Ownership interest, percentage	49.00%
Equity investments in real estate	$ 16,203	15,170
Net Lease | Berry Plastics Corporation | WPC
Ownership interest in equity investments:
Ownership interest, percentage	50.00%
Equity investments in real estate	$ 15,596	16,094
Net Lease | Hellweg Die Profi-Baumärkte GmbH & Co. KG (referred to as Hellweg 2) | WPC
Ownership interest in equity investments:
Ownership interest, percentage	37.00%
Equity investments in real estate	$ 12,723	12,212
Net Lease | Tesco plc | WPC
Ownership interest in equity investments:
Ownership interest, percentage	49.00%
Equity investments in real estate	$ 12,099	11,849
Net Lease | Agrokor d.d. (referred to as Agrokor 5) | CPA 18 - Global
Ownership interest in equity investments:
Ownership interest, percentage	20.00%
Equity investments in real estate	$ 8,069	7,858
Net Lease | Eroski Sociedad Cooperativa - Mallorca | WPC
Ownership interest in equity investments:
Ownership interest, percentage	30.00%
Equity investments in real estate	$ 7,187	6,790
Net Lease | Dicks Sporting Goods, Inc. | WPC
Ownership interest in equity investments:
Ownership interest, percentage	45.00%
Equity investments in real estate	$ 4,827	5,055
Self-Storage
Ownership interest in equity investments:
Equity investments in real estate	$ 15,134	16,060
Self-Storage | Madison Storage NYC, LLC and Veritas Group IX-NYC, LLC | Third Party
Ownership interest in equity investments:
Ownership interest, percentage	85.00%
Equity investments in real estate	$ 15,134	16,060
All Other
Ownership interest in equity investments:
Equity investments in real estate	$ 254,716	257,742
All Other | Shelborne Property Associates, LLC | Third Party
Ownership interest in equity investments:
Ownership interest, percentage	33.00%
Equity investments in real estate	$ 145,401	148,121
All Other | IDL Wheel Tenant, LLC | Third Party
Ownership interest in equity investments:
Equity investments in real estate	$ 43,215	44,387
All Other | BG LLH, LLC | Third Party
Ownership interest in equity investments:
Ownership interest, percentage	7.00%
Equity investments in real estate	$ 38,600	37,720
All Other | BPS Nevada, LLC Preferred Equity | Third Party
Ownership interest in equity investments:
Equity investments in real estate	$ 27,500	$ 27,514