|3 Months Ended|
Mar. 31, 2018
|Retirement Benefits [Abstract]|
15. Benefit Plans:
The following information is provided for (1) the Company-sponsored defined benefit pension plans covering employees in the U.S. and certain employees at its foreign subsidiaries, (2) the Company-sponsored unfunded plans to provide certain health care benefits to retired employees in the U.S. and Canada, and (3) the Company’s defined benefit supplementary retirement plans which provide benefits for certain U.S. employees in excess of qualified plan limitations.
Components of net periodic expense (benefit) are as follows:
Defined Benefit Pension Plans
Supplemental Retirement Plans
Other Postretirement Benefit Plans
The entire disclosure for pension and other postretirement benefits.
Reference 1: http://www.xbrl.org/2003/role/presentationRef