recorded adjustments to reduce cloud software subscriptions obligations to their estimated fair values at the acquisition dates. As a result, as required by business combination accounting rules, we did not recognize cloud software subscriptions revenues related to cloud software subscriptions contracts that would have been otherwise recorded by the acquired businesses as independent entities in the amounts of $45 million and $22 million in fiscal 2013 and 2012, respectively. To the extent underlying cloud software subscriptions contracts are renewed with us following an acquisition, we will recognize the revenues for the full values of the cloud software subscriptions contracts over their respective contractual periods.

Software License Updates and Product Support:     Customers that purchase software license updates and product support are granted rights to unspecified product upgrades and maintenance releases and patches released during the term of the support period, as well as technical support assistance. Our software license updates and product support contracts are generally one year in duration and substantially all of our customers renew their software license updates and product support contracts annually. The growth of software license updates and product support revenues is primarily influenced by three factors: (1) the percentage of our software support contract customer base that renews its software support contracts, (2) the amount of new software support contracts sold in connection with the sale of new software licenses and (3) the amount of software support contracts assumed from companies we have acquired.

Software license updates and product support revenues, which represented 46%, 43% and 42% of our total revenues in fiscal 2013, 2012 and 2011, respectively, is our highest margin business unit. Our software support margins during fiscal 2013 were 88% and accounted for 74% of our total margins over the same period. Our software license updates and product support margins have been affected by fair value adjustments relating to software support obligations assumed in business combinations (described further below) and by amortization of intangible assets. However, over the longer term, we believe that software license updates and product support revenues and margins will grow for the following reasons:

	•	 	substantially all of our customers, including customers from acquired companies, renew their software support contracts when eligible for renewal;

	•	 	substantially all of our customers purchase software license updates and product support contracts when they buy new software licenses, resulting in a further increase in our software support contract base. Even if new software licenses

	•		revenues growth was flat, software license updates and product support revenues would continue to grow in comparison to the corresponding prior year periods assuming contract renewal and cancellation rates and foreign currency rates remained relatively constant since substantially all new software licenses transactions result in the sale of software license updates and product support contracts, which add to our software support