Defined Benefit Pension Plans Schedule of Amounts Recognized in Other Comprehensive Income (loss), pre-tax (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Net actuarial (gain) loss	$ 25,838	$ (5,881)	$ 24,492
Settlement/ curtailment loss	(55)	(325)	(13)
Plan asset (gain) loss	129	516	108
Amortization of net actuarial gain (loss)	(572)	(926)	(161)
Amortization of prior service cost	(138)	(70)	(68)
Other	68	(658)	0
Other comprehensive (income) loss	$ 25,270	$ (7,344)	$ 24,358