Retirement Plans (Tables)

9 Months Ended

Sep. 30, 2013

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Benefit Costs [Table Text Block]

		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
Service cost	$	8	$	8	$	25	$	24
Interest cost		177		187		530		561
Expected return on plan assets		(214)		(203)		(642)		(607)
Recognized net actuarial loss		53		49		159		146
Net periodic benefit cost	$	24	$	41	$	72	$	124

Defined Contribution Pension [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Costs of Retirement Plans [Table Text Block]

		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
Salaried Plan	$	478	$	599	$	1,422	$	1,674
Union Plan		18		23		53		59
Montreal Plan		28		30		88		89
U.K. Plan		27		29		95		84
Burnaby Plan		34		34		111		111
	$	585	$	715	$	1,769	$	2,017

United Kingdom Benefit Plans [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Benefit Costs [Table Text Block]

		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
Interest cost	$	85	$	89	$	255	$	252
Expected return on plan assets		(73)		(76)		(219)		(215)
Amortization of transition amount		(12)		(12)		(36)		(36)
Recognized net actuarial loss		57		58		171		165
Net periodic cost	$	57	$	59	$	171	$	166