Employee Benefits (Tables)

9 Months Ended

Sep. 30, 2017

Retirement Benefits [Abstract]

Pension and Other Defined Contribution Retirement Plan Expenses

Pension and other defined contribution retirement plan expenses included the following components:

U.S. Plans	Three Months Ended September 30,						Nine Months Ended September 30,
(DOLLARS IN THOUSANDS)	2017			2016			2017			2016
Service cost for benefits earned	$	698		$	771		$	2,093		$	2,314
Interest cost on projected benefit obligation	4,561			6,007			13,683			18,020
Expected return on plan assets	(9,246		)	(8,069		)	(27,737		)	(24,208		)
Net amortization and deferrals	1,793			1,387			5,377			4,159
Net periodic benefit (income) cost	(2,194		)	96			(6,584		)	285
Defined contribution and other retirement plans	1,939			1,211			6,718			5,823
Total (income) expense	$	(255	)	$	1,307		$	134		$	6,108
Non-U.S. Plans	Three Months Ended September 30,						Nine Months Ended September 30,
(DOLLARS IN THOUSANDS)	2017			2016			2017			2016
Service cost for benefits earned	$	5,956		$	3,863		$	17,867		$	11,443
Interest cost on projected benefit obligation	4,066			6,372			12,198			18,890
Expected return on plan assets	(12,873		)	(11,985		)	(38,618		)	(35,526		)
Net amortization and deferrals	4,185			3,286			12,554			9,738
Net periodic benefit cost	1,334			1,536			4,001			4,545
Defined contribution and other retirement plans	1,470			1,705			4,383			5,175
Total expense	$	2,804		$	3,241		$	8,384		$	9,720

Postretirement Benefits Other Than Pension Expenses

Expense recognized for postretirement benefits other than pensions included the following components:

	Three Months Ended September 30,						Nine Months Ended September 30,
(DOLLARS IN THOUSANDS)	2017			2016			2017			2016
Service cost for benefits earned	$	221		$	214		$	663		$	644
Interest cost on projected benefit obligation	588			787			1,764			2,360
Net amortization and deferrals	(1,046		)	(1,355		)	(3,138		)	(4,065		)
Total postretirement benefit income	$	(237	)	$	(354	)	$	(711	)	$	(1,061	)