5. Goodwill

During the first quarter of 2017, the Company realigned its operational segments and reporting structure to reflect how the business will be managed going forward. As part of this realignment, the Company divided its single operating segment into seven geographical reporting segments. The Company's reporting units for goodwill are its operating segments, which are also its reportable segments. As a result of the segment changes, the historical goodwill of $115.0 million was allocated to the seven reportable segments.

The following table presents goodwill allocated to the Company's reportable segments for the periods ended December 30, 2017 and December 31, 2016 (U.S. dollars in thousands):

	December 31, 2016⁽¹⁾		December 31, 2017

Mainland China	$	32,179	$	32,179
South Korea		29,261		29,261
Americas		9,449		9,449
South Asia/Pacific		18,537		18,537
Japan		16,019		16,019
Hong Kong/Taiwan		6,634		6,634
EMEA		2,875		2,875
Total	$	114,954	$	114,954

⁽¹⁾

Goodwill was recast to reflect current period presentation by geographic region at December 31, 2016.

Goodwill is not amortized, rather it is subject to annual impairment tests. Annual impairment tests were completed resulting in no impairment charges for any of the periods shown.