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Goodwill (Tables) | 12 Months Ended
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Dec. 31, 2017
Goodwill And Intangible Assets Disclosure [Abstract] |
Schedule of Reconciliation of Activity for Goodwill | A reconciliation of the activity for goodwill for 2017 and 2016 is as follows:
|  | Fiscal Year |
(in thousands) |  | 2017 |  |  | 2016 |
Beginning balance - goodwill |  | $ | 144,586 |  |  | $ | 117,954 |
System Transformation Transactions acquisitions(1) |  |  | 35,867 |  |  |  | 26,272 |
October 2017 Divestitures |  |  | (13,073 | ) |  |  | - |
2015 Asset Exchange |  |  | - |  |  |  | (682 | )
Measurement period adjustments(2) |  |  | 1,936 |  |  |  | 1,042 |
Ending balance - goodwill |  | $ | 169,316 |  |  | $ | 144,586 |
(1) System Transformation Transactions acquisitions includes an increase in goodwill of $7.4 million in 2017 and a decrease in goodwill of $5.8 million in 2016 from the opening balance sheets for the Expansion Territories and Expansion Facilities acquired in the System Transformation during 2017 and 2016, respectively, as disclosed in the financial statements in the Company’s filed periodic reports. These adjustments are for post-closing adjustments made in accordance with the terms and conditions of the applicable asset purchase agreement or asset exchange agreement for each System Transformation Transaction. (2) Measurement period adjustments relate to post-closing adjustments made in accordance with the terms and conditions of the applicable asset purchase agreement or asset exchange agreement for each System Transformation Transaction.

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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