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Retirement Plans (Tables) | 6 Months Ended
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Jun. 30, 2013
Defined Benefit Plan Disclosure [Line Items] |
Schedule of Net Benefit Costs [Table Text Block] |
|  | Three Months Ended |  | Six Months Ended
|  | June 30, |  | June 30,
|  | 2013 |  | 2012 |  | 2013 |  | 2012
Service cost | $ | 9 | $ | 8 | $ | 17 | $ | 16
Interest cost |  | 176 |  | 311 |  | 353 |  | 621
Expected return on plan assets |  | (214) |  | (338) |  | (428) |  | (673)
Recognized net actuarial loss |  | 53 |  | 56 |  | 106 |  | 112
Net periodic benefit cost | $ | 24 | $ | 37 | $ | 48 | $ | 76
Defined Contribution Pension [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Schedule of Costs of Retirement Plans [Table Text Block] |
|  | Three Months Ended |  | Six Months Ended
|  | June 30, |  | June 30,
|  | 2013 |  | 2012 |  | 2013 |  | 2012
Salaried Plan | $ | 495 | $ | 620 | $ | 944 | $ | 1,075
Union Plan |  | 19 |  | 19 |  | 35 |  | 36
Montreal Plan |  | 25 |  | 32 |  | 60 |  | 59
U.K. Plan |  | 35 |  | 16 |  | 68 |  | 30
Burnaby Plan |  | 34 |  | 31 |  | 77 |  | 77
| $ | 608 | $ | 718 | $ | 1,184 | $ | 1,277
United Kingdom Benefit Plans [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Schedule of Net Benefit Costs [Table Text Block] |
|  | Three Months Ended |  | Six Months Ended
|  | June 30, |  | June 30,
|  | 2013 |  | 2012 |  | 2013 |  | 2012
Interest cost | $ | 80 | $ | 80 | $ | 160 | $ | 163
Expected return on plan assets |  | (68) |  | (68) |  | (136) |  | (139)
Amortization of transition amount |  | (11) |  | (12) |  | (22) |  | (24)
Recognized net actuarial loss |  | 53 |  | 52 |  | 106 |  | 107
Net periodic cost | $ | 54 | $ | 52 | $ | 108 | $ | 107

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- Definition Tabular disclosure of the costs related to the various types of retirement plans including defined benefit pension plan cost, defined contribution plan cost, other postretirement benefit plan cost, and net periodic benefit cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 + Details
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