From Les Sparks:

In truth there are few impairments in the M/F industry (at least discussed with me.) With subsidies and such we just do not see many. Of course, with the revision of GAAP (ASU-2014-15) for Going Concerns that just went effective with 12/31/2016 year ends, I can see where this might be an issue with expiring credits and such. There is no specific template to follow.

In fact, the entire update was published for this purpose as stated below:

“Currently, there is no guidance in GAAP about management’s responsibility to evaluate whether there is substantial doubt about an entity’s ability to continue as a going concern or to provide related footnote disclosures. U.S. auditing standards and federal securities law require that an auditor evaluate whether there is substantial doubt about an entity’s ability to continue as a going concern for a reasonable period of time not to exceed one year beyond the date of the financial statements being audited. U.S. auditing standards also require an auditor to consider the possible financial statement effects, including footnote disclosures on uncertainties about an entity’s ability to continue as a going concern for a reasonable period of time (the American Institute of Certified Public Accountant’s Codification of Statements on Auditing Standards Section AU-C 570, The Auditor’s Consideration of an Entity’s Ability to Continue as a Going Concern, or the Public Company Accounting Oversight Board’s AU Section 341, The Auditor’s Consideration of an Entity’s Ability to Continue as a Going Concern). The U.S. Securities and Exchange Commission (SEC) also has guidance on disclosures that it expects from an entity when an auditor’s report includes an explanatory paragraph that reflects substantial doubt about an entity’s ability to continue as a going concern for a reasonable period of time (The Codification of Financial Reporting Policies, Section 607.02). The Board received input indicating that because of the lack of guidance in GAAP and the differing views about when there is substantial doubt about an entity’s ability to continue as a going concern, there is diversity in whether, when, and how an entity discloses the relevant conditions and events in its footnotes.”

So, I guess the entire thing is being re-written as we speak. That is all I know.

Lastly, since there are so few impairments, I do not have any information on whether back-end sales are included. However, I cannot imagine that they are not including it.