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Mergers and Acquisitions (Tables) - Coffey and INDUS | 6 Months Ended
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Mar. 27, 2016
Summary of estimated fair values of assets acquired and liabilities assumed | The following table summarizes the estimated fair values of assets acquired and liabilities assumed as of the respective acquisition dates for our acquisitions completed in fiscal 2016 ($ in thousands):
Accounts receivable |  | $ | 82,736 |
Other current assets |  | 7,846 |
Property and equipment |  | 14,723 |
Goodwill |  | 104,454 |
Backlog and customer relationship intangible assets |  | 26,188 |
Other assets |  | 6,142 |
Current liabilities |  | (74,641) |
Borrowings |  | (65,086) |
Other long-term liabilities |  | (7,945) |
Noncontrolling interests |  | (500) |
Net assets acquired |  | $ | 93,917 |
Summary of consolidated pro forma operating results |
|  | Pro-Forma |
|  | Three Months Ended |  | Six Months Ended |
|  | March 27, 2016 |  | March 29, 2015 |  | March 27, 2016 |  | March 29, 2015 |
|  | (in thousands, except per share data) |
Revenue |  | $ | 647,612 |  | $ | 683,436 |  | $ | 1,319,281 |  | $ | 1,376,599 |
Operating income |  | 32,617 |  | 29,046 |  | 62,766 |  | 48,670 |
Net income attributable to Tetra Tech |  | 20,038 |  | 15,844 |  | 39,526 |  | 22,978 |
Earnings per share attributable to Tetra Tech: |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.34 |  | $ | 0.26 |  | $ | 0.67 |  | $ | 0.37 |
Diluted |  | $ | 0.34 |  | $ | 0.26 |  | $ | 0.67 |  | $ | 0.37 |
Summary of acquisition and integration expenses |
|  | Three Months Ended March 27, 2016 |
|  | (in thousands) |
Severance including change in control payments |  | $ | 7,280 |
Professional services |  | 5,685 |
Real estate-related |  | 2,946 |
Total |  | $ | 15,911 |

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- Definition Tabular disclosure of the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed. May include but not limited to the following: (a) acquired receivables; (b) contingencies recognized at the acquisition date; and (c) the fair value of noncontrolling interests in the acquiree. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472 + Details
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