Commitments and Contingencies We are involved in various pending and threatened litigation and regulatory matters related to our operations, some of which include claims for punitive or exemplary damages. Our ordinary course litigation includes purported class action lawsuits which make allegations related to various aspects of our operations. From time to time, we also receive requests for information from various state and federal regulatory authorities, some of which take the form of civil investigative demands or subpoenas. Some of these regulatory inquiries may result in the assessment of fines for violations of regulations or settlements with such authorities requiring a variety of remedies. We believe that no actions, other than those matters discussed below, depart from customary litigation or regulatory inquiry incidental to our business. In accordance with applicable accounting guidance, we establish accruals for litigation and regulatory matters when those matters present loss contingencies that are both probable and reasonably estimable. Our accrual for legal and regulatory matters totaled $88.6 million and $223.1 million as of June 30, 2013 and December 31, 2012, respectively. The accrual, which was adjusted during the current quarter to reflect changes in the estimated costs to resolve certain of the matters described below, represents management's best estimate of future costs of settlement, damages and associated legal and professional fees with respect to matters that remain pending and assumes no third party recoveries. For the reasons described below, we are unable to estimate a range of loss for pending matters in excess of the amount accrued or for any potential losses related to any other reasonably possible claims. We continually evaluate the accrual for legal and regulatory matters as those matters progress. Set forth below are descriptions of our material pending legal and regulatory proceedings. As background to the disclosure below, please note the following: " These matters raise diffi