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Commitments and Contingencies
12 Months Ended
Dec. 31, 2012
Commitments and Contingencies [Abstract]  
Commitments and Contingencies
Commitments and Contingencies

Commitments Under Existing Lease Agreements

Certain lease agreements include provisions that, at the option of the tenant, may obligate Piedmont to provide funding for capital improvements. Under its existing lease agreements, Piedmont may be required to fund significant tenant improvements, leasing commissions, and building improvements. In addition, certain agreements contain provisions that require Piedmont to issue corporate or property guarantees to provide funding for capital improvements or other financial obligations. Further, Piedmont classifies such tenant and building improvements into two classes: (i) improvements which incrementally enhance the building's asset value by expanding its revenue generating capacity (“incremental capital expenditures”) and (ii) improvements which maintain the building's existing asset value and its revenue generating capacity (“non-incremental capital expenditures”). As of December 31, 2012, Piedmont anticipates funding potential non-incremental capital expenditures for tenant improvements of approximately $111.9 million related to its existing lease portfolio over the respective lease terms, the majority of which Piedmont estimates may
be required to be funded over the next several years. For most of Piedmont’s leases, the timing of the actual funding of these tenant improvements is largely dependent upon tenant requests for reimbursement. In some cases, these obligations may expire with the leases without further recourse to Piedmont.

Additionally, as of December 31, 2012, commitments for incremental capital expenditures associated with new leases, primarily at value-add properties, totals approximately $63.8 million.

Contingencies Related to Tenant Audits/Disputes

Certain lease agreements include provisions that grant tenants the right to engage independent auditors to audit their annual operating expense reconciliations. Such audits may result in the re-interpretation of language in the lease agreements which could result in the refund of previously recognized tenant reimbursement revenues, resulting in financial loss to Piedmont. Piedmont recorded additional expense related to such tenant audits/disputes of approximately $0.2 million, $0.7 million and $0.4 million during the years ended December 31, 2012, 2011, and 2010, respectively.

Letters of Credit

As of December 31, 2012, Piedmont was subject to the following letters of credit, which reduce the total outstanding capacity under its $500 Million Unsecured Line of Credit:

Amount

 
Expiration of Letter of Credit (1)
$
10,000,000

 
July 2013
$
9,033,164

 
July 2013
$
382,556

 
July 2013

(1) 
These letter of credit agreements contain an “evergreen” clause, which automatically renews for consecutive, one-year periods each anniversary, subject to certain limitations.

Operating Lease Obligations

Three properties (the River Corporate Center building in Tempe, Arizona; the 8700 South Price Road building in Tempe, Arizona; and the 2001 NW 64th Street building in Ft. Lauderdale, Florida) are subject to ground leases with expiration dates ranging between 2048 and 2101. The aggregate remaining payments required under the terms of these operating leases as of December 31, 2012 are presented below (in thousands):

 
2013
 
$
750

 
2014
 
750

 
2015
 
750

 
2016
 
750

 
2017
 
750

 
Thereafter
 
74,119

 
Total
 
$
77,869



Ground rent expense was approximately $0.8 million, $0.6 million, and $0.6 million for the years ended December 31, 2012, 2011, and 2010, respectively, and is included in property operating costs in the accompanying consolidated statements of income. The net book value of the real estate assets of the related office buildings subject to operating ground leases is approximately $31.8 million and $26.0 million as of December 31, 2012 and 2011, respectively.

Agreements in Principle to Resolve Legal Actions
Piedmont and certain of its current and former officers and directors were party to two separate securities class action lawsuits which challenged various disclosures made in connection with Piedmont's April 2007 internalization transaction in one case and a response to a May 2007 tender offer for Piedmont's shares and an October 2007 proxy statement seeking approval of amendments to Piedmont's charter in the other case. (Please refer to Part I. Item 3 “Legal Proceedings” for a complete description of the chronology of the two lawsuits). During the year ended December 31, 2012, after receiving favorable rulings including the dismissal of all claims in both cases, Piedmont reached agreement in principle to settle both lawsuits, thus avoiding additional legal expense associated with any further appeals by the plaintiffs. As a result, during the year ended December 31, 2012, Piedmont recorded a $7.5 million litigation settlement charge in the accompanying financial statements (Please see Note 2 - Litigation Settlement Expense). The settlements are subject to court approval following notice to the classes. As such, the possibility of further financial loss does exist; however, management has concluded that such risk of loss is remote.
Other Legal Matters

Piedmont is from time to time a party to legal proceedings, which arise in the ordinary course of its business. None of these ordinary course legal proceedings are reasonably likely to have a material adverse effect on results of operations or financial condition.