15. BUSINESS COMBINATIONS Integrated Data Storage, LLC acquisition On September 15, 2017, our subsidiary e Plus Technology, inc. acquired certain assets and assumed certain liabilities of Integrated Data Storage, LLC (IDS) though an asset purchase agreement. Headquartered in Oak Brook, IL and with offices in downtown Chicago and Indianapolis, IDS is an advanced data center solutions provider focused on cloud enablement and managed services, including its proprietary IDS Cloud, which features enterprise-class technology infrastructure coupled with consulting services to support private, hybrid, and public cloud deployments. The acquisition expands e Plus footprint in the Midwest and enhances its sales and engineering capabilities in cloud services, disaster recovery and backup as a service, storage, data center, and professional services. Our preliminary sum of total consideration transferred is $38.4 million, consisting of $29.8 million paid in cash at closing, less $1.4 million in receivables due to us as a working capital adjustment , plus an additional $10.0 million equal to the preliminary fair value of consideration, contingent on the acquirees business operations future gross profit. The contingent consideration was calculated using the Monte Carlo simulation model based on our projections of future gross profits. The maximum payout of the contingent consideration is $15.0 million paid over 3 years. Our preliminary allocation of the purchase consideration to the assets acquired and liabilities assumed is presented below (in thousands): Acquisition Date Amount Accounts receivable and other assets $ 14,353 Property and equipment 1,620 Identified intangible assets 13,650 Accounts payable and other current liabilities (12,313 ) Total identifiable net assets 17,310 Goodwill 21,088 Total purchase consideration $ 38,398 Our sum for consideration transferred and our allocation of the purchase consideration is preliminary and subject to revision as additional information related to the fair value of assets and l