Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2019

Schedule of Property, Plant and Equipment, Useful life

We estimate the useful lives and salvage values of our assets based on historical data as follows:

Buildings and leasehold improvements		3 - 40 years
Machinery and equipment		3 - 10 years

Schedule of Other Assets

Other assets at December 31, 2019 and 2018 consisted of the following (in thousands):

	2019		2018
Cash surrender value of life insurance	$	47,195	$	41,575
Investments in unconsolidated affiliates		3,969		3,760
Other		4,882		5,880
Total other assets	$	56,046	$	51,215

Schedule of Weighted Average Number of Shares

The following table summarizes the calculation of weighted average common shares outstanding used in the computation of diluted earnings per share for the years ended December 31, 2019, 2018 and 2017 (in thousands):

	2019		2018		2017
Weighted average basic common shares outstanding		44,357		44,206		44,153
Effect of dilutive securities:
Performance shares		242		221		69
Restricted stock		47		47		42
Weighted average diluted common and potential common shares outstanding		44,646		44,474		44,264