Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended														3 Months Ended
	Dec. 31, 2012 Class A Units	Dec. 31, 2012 Class B Units	Dec. 31, 2012 General Partners	Dec. 31, 2012 First Priority Class A Units	Dec. 31, 2012 Second Priority General Partners	Dec. 31, 2012 Third Priority Limited Partners	Dec. 31, 2012 Third Priority Class A Units	Dec. 31, 2012 Third Priority General Partners	Dec. 31, 2012 Fourth Priority Limited Partners	Dec. 31, 2012 Fifth Priority Class A Units	Dec. 31, 2012 Fifth Priority Class B Units	Dec. 31, 2012 Sixth Priority General Partners	Dec. 31, 2012 Seventh Priority Limited Partners	Dec. 31, 2012 Seventh Priority General Partners	Jun. 30, 2010 Wells Real Estate Fund X, L.P. 360 Interlocken Building	Jun. 30, 2010 Fund IX-X-XI-REIT Associates 360 Interlocken Building
Significant Accounting Policies [Line Items]
Asset Impairment Charges															$ 565,000	$ 1,448,000
Distribution of Net Cash from Operations
Distribution of net cash from operations based on capital contributions				10.00%
Distribution of net cash from operations based on cumulative distributions					10.00%
Distribution of net cash from operations based on allocation							90.00%	10.00%
Distribution of Net Sale Proceeds
Distribution of net sale proceeds based on partner capital contributions						100.00%						100.00%
Distribution of net sale proceeds based on partners' return on capital contributions									10.00%
Distribution of net sale proceeds based on preferential limited partner return										10.00%	15.00%
Distribution of net sale proceeds based additional excess												25.00%
Distribution of net sale proceeds based on allocation													80.00%	20.00%
Allocations of Net Income, Net Loss, and Gain on Sale
Distribution of excess net income based on allocation	99.00%		1.00%
Distribution of net loss, depreciation, and amortization based on allocation		99.00%	1.00%