Employee Benefits (Tables)

3 Months Ended

Mar. 31, 2016

Compensation and Retirement Disclosure [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 March 31,
(DOLLARS IN THOUSANDS)	2016			2015
Service cost for benefits earned	$	771		$	984
Interest cost on projected benefit obligation	6,007			5,953
Expected return on plan assets	(8,069		)	(8,083		)
Net amortization and deferrals	1,387			5,203
Net periodic benefit cost	96			4,057
Defined contribution and other retirement plans	2,402			2,135
Total expense	$	2,498		$	6,192
Non-U.S. Plans	Three Months Ended March 31,
(DOLLARS IN THOUSANDS)	2016			2015
Service cost for benefits earned	$	3,775		$	4,383
Interest cost on projected benefit obligation	6,366			6,392
Expected return on plan assets	(11,949		)	(12,950		)
Net amortization and deferrals	3,264			3,486
Loss due to settlements and special terminations	—			—
Net periodic benefit cost	1,456			1,311
Defined contribution and other retirement plans	1,707			1,595
Total expense	$	3,163		$	2,906

Postretirement Benefits Other Than Pension Expenses

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

	Three Months Ended March 31,
(DOLLARS IN THOUSANDS)	2016			2015
Service cost for benefits earned	$	215		$	300
Interest cost on projected benefit obligation	787			1,082
Net amortization and deferrals	(1,355		)	(711		)
Total postretirement benefit expense	$	(353	)	$	671