Share-Based Compensation (Tables)

6 Months Ended

Jul. 28, 2019

Share-based Payment Arrangement, Noncash Expense [Abstract]

Allocation Of Stock-Based Compensation

Pre-tax share-based compensation was included in the Statements of Income as follows:

	Three Months Ended				Six Months Ended
(in thousands)	July 28, 2019		July 29, 2018		July 28, 2019		July 29, 2018
Revenue offset	$	—	$	—	$	—	$	21,501
Cost of sales	402		306		829		633
Selling, general and administrative	6,082		11,378		14,426		22,840
Product development and engineering	2,162		2,282		4,719		4,507
Total share-based compensation	$	8,646	$	13,966	$	19,974	$	49,481

Schedule of Share-based Compensation, Restricted Stock Units

The following tables summarize the assumptions used in the Monte Carlo simulation model to determine the fair value of restricted stock units granted in fiscal year 2020 for both Tranche 1 and Tranche 2.

	Tranche 1			Tranche 2
Expected life, in years	1.0			2.1
Estimated volatility	34.3		%	34.3		%
Dividend yield	—		%	—		%
Risk-free interest rate	2.5		%	2.5		%
Weighted-average fair value on grant date	$	44.32		$	33.19