Employee Benefits (Tables)

12 Months Ended

Dec. 31, 2019

Summary of Workers' Compensation Known Claims and IBNR Reserves

Workers’ compensation known claims and IBNR reserves included on the Consolidated Balance Sheets were as follows (in thousands)


	As of December 31,
	2019		2018
Included in other current liabilities	$	6,777	$	5,795
Included in other long-term liabilities		10,874		9,447

	$	17,651	$	15,242

Schedule of Insurance Receivable for Claims

This receivable offsets an equal liability included within the reserve amounts noted above and was as follows (in thousands):


	As of December 31,
	2019		2018
Included in other non-current assets	$	2,098	$	1,888

Summary of Equity-based Awards for Employees

Amounts for each category of equity-based award for employees as of December 31, 2019 and changes during the year ended December 31, 2019 were as follows:


	Common Stock Awards					Performance-Based Stock Awards					Performance-Based Restricted Stock Units
	Awards			Weighted Average Grant Date Fair Value Per Share		Awards			Weighted Average Grant Date Fair Value Per Share		Units			Weighted Average Grant Date Fair Value Per Share
Nonvested awards/units at December 31, 2018		173,189		$	47.40		115,698		$	52.25		13,248		$	56.05
Granted		88,529			50.94		82,692			45.65		13,933			51.62
Vested		(106,660	)		42.30		(31,404	)		41.00		(12,808	)		56.05
Forfeited/Cancelled		(2,176	)		52.13		(6,697	)		65.60		(1,187	)		53.26

Nonvested awards/units at December 31, 2019		152,882		$	52.93		160,289		$	50.49		13,186		$	51.62

Summary of Stock Compensation Expenses

During the years ended December 31, 2019, 2018 and 2017, we recorded the following stock compensation expense, by income statement category (in thousands):


	2019		2018		2017
Cost of sales	$	374	$	846	$	965
Selling		194		451		571
Administrative		8,159		6,549		5,055

	$	8,727	$	7,846	$	6,591