|ENVISION HEALTHCARE CORP filed this Form 10-Q on 08/08/2017|
(8) Goodwill and Intangible Assets
The changes in the carrying amount of goodwill for the six months ended June 30, 2017 are as follows (in millions):
During the six months ended June 30, 2017, goodwill was recorded in the Company's physician services segment due to the acquisition of nine physician practices. In the Company's ambulatory services segment, goodwill increased due to the acquisition of four surgery centers and was offset by $14.1 million of goodwill from the disposal of three surgery centers within the ambulatory services segment.
Intangible assets at June 30, 2017 and December 31, 2016 consisted of the following (in millions):
Amortization of intangible assets for the three months ended June 30, 2017 and 2016 was $55.5 million and $21.1 million, respectively, and $111.6 million and $41.5 million for the six months ended June 30, 2017 and 2016, respectively. Estimated amortization of intangible assets for the remainder of 2017 and each of the following five years and thereafter is $113.4 million, $202.1 million, $193.7 million, $186.9 million, $180.0 million, $174.8 million and $2.24 billion, respectively. The Company expects to recognize amortization of all intangible assets over a weighted average period of 18.2 years with no expected residual values.