Retirement Plans (Tables)

6 Months Ended

Jun. 30, 2019

Retirement Plans [Abstract]

Schedule Of Expenses For Retirement, Profit-Sharing Plans, Excess Benefit Plans And Other Similar Plans

Three months ended June 30,				Six months ended June 30,
2019		2018		2019		2018
$	3,796	$	4,807	$	10,710	$	9,974