Pension and Non-pension Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2015

Defined Benefit Pension Plan [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Benefit Costs [Table Text Block]

The components of our net pension expense, including the SERP, are as follows:

Three months ended September 30,	U.S. Plans						Non-U.S. Plans						Total
(dollars in thousands)	2015			2014			2015			2014			2015			2014
Service cost	$	1,091		$	916		$	741		$	567		$	1,832		$	1,483
Interest cost	3,678			3,845			1,085			1,396			4,763			5,241
Expected return on plan assets	(5,666		)	(5,597		)	(608		)	(616		)	(6,274		)	(6,213		)
Amortization of unrecognized:
Prior service cost	104			265			(62		)	55			42			320
Loss	1,823			1,014			400			253			2,223			1,267
Pension expense	$	1,030		$	443		$	1,556		$	1,655		$	2,586		$	2,098
Nine months ended September 30,	U.S. Plans						Non-U.S. Plans						Total
(dollars in thousands)	2015			2014			2015			2014			2015			2014
Service cost	$	3,274		$	2,748		$	2,251		$	1,724		$	5,525		$	4,472
Interest cost	11,036			11,534			3,295			4,242			14,331			15,776
Expected return on plan assets	(16,996		)	(16,790		)	(1,844		)	(1,872		)	(18,840		)	(18,662		)
Amortization of unrecognized:
Prior service cost	313			794			(187		)	170			126			964
Loss	5,468			3,043			1,215			770			6,683			3,813
Pension expense	$	3,095		$	1,329		$	4,730		$	5,034		$	7,825		$	6,363

Non-Pension Postretirement Benefit Plans [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Benefit Costs [Table Text Block]

The provision for our non-pension postretirement benefit expense consists of the following:

Three months ended September 30,	U.S. Plans				Non-U.S. Plans					Total
(dollars in thousands)	2015		2014		2015			2014		2015		2014
Service cost	$	214	$	252	$	—		$	—	$	214	$	252
Interest cost	634		710		10			26		644		736
Amortization of unrecognized:
Prior service cost	35		35		—			—		35		35
Loss / (gain)	148		66		(19		)	—		129		66
Non-pension postretirement benefit expense	$	1,031	$	1,063	$	(9	)	$	26	$	1,022	$	1,089
Nine months ended September 30,	U.S. Plans				Non-U.S. Plans					Total
(dollars in thousands)	2015		2014		2015			2014		2015		2014
Service cost	$	641	$	755	$	1		$	1	$	642	$	756
Interest cost	1,903		2,130		39			82		1,942		2,212
Amortization of unrecognized:
Prior service cost	105		105		—			—		105		105
Loss / (gain)	444		200		(43		)	—		401		200
Non-pension postretirement benefit expense	$	3,093	$	3,190	$	(3	)	$	83	$	3,090	$	3,273