Share-Based Compensation (Tables)

3 Months Ended

Mar. 27, 2020

Share-based Payment Arrangement, Noncash Expense [Abstract]

Stock-based compensation expense included in selling, general and administrative expenses

Stock-based compensation expense related to stock options, restricted stock awards ("RSAs"), restricted stock units ("RSUs") and performance stock units ("PSUs") is included in selling, general and administrative expenses in the accompanying Consolidated Statements of Operations and is comprised as follows (U.S. dollars in millions): 

	Quarter ended
	March 27, 2020		March 29, 2019
RSUs/PSUs	2.3		3.3
RSAs	0.3		0.9
Total	$	2.6	$	4.2

Restricted stock awards and related compensation expense

The following table lists RSAs awarded under the 2014 plan for the quarters ended March 27, 2020 and March 29, 2019:

Date of award	Shares of restricted stock awarded	Price per share
January 2, 2020	7,374	$	34.42
January 2, 2019	30,891	$	28.32

RSU and PSUs awarded

The following table lists the various RSUs and PSUs awarded under the 2014 Plan for the quarters ended March 27, 2020 and March 29, 2019 (U.S. dollars in millions, except share and per share data):

Date of Award	Type of award	Units awarded	Price per share
For the quarter ended March 27, 2020
March 23, 2020	RSU	2,500	$	33.53
March 2, 2020	PSU	86,954	28.74
March 2, 2020	RSU	161,093	28.74
For the quarter ended March 29, 2019
March 25, 2019	RSU	5,000	$	26.55
February 20, 2019	PSU	85,000	27.71
February 20, 2019	RSU	133,750	27.71