Note 10 - Revenue Recognition

We recognize revenue when our customers obtain control of promised goods or services, in an amount that reflects the consideration which we expect to receive in exchange for those goods or services, in accordance with implemented Topic 606 - an update to Topic 605.

We adopted Topic 606 using the modified retrospective method applied to those contracts which were not completed as of January 1, 2018. Results for reporting periods beginning after January 1, 2018 are presented under Topic 606. Revenue amounts presented in our condensed consolidated financial statements are recognized net of sales tax, value-added taxes, and other taxes.

In the normal course of business, we recognize revenue based on the customers' attendance of the course, mentoring training, coaching session or delivery of the software, data or course materials on-line. After a customer contract expires, we record breakage revenue less a reserve for cases where we allow a customer to attend after expiration. We have deferred revenue of $61.2 million related to contractual commitments with customers where the performance obligation will be satisfied over time, which ranges from one to two years as of September 30, 2019. The revenue associated with these performance obligations is recognized as the obligation is satisfied. We did not have a material change in financial position, results of operations, or cash flows and therefore there is no cumulative impact recorded to opening equity.

The following tables disaggregate our segment revenue by revenue source: