XML 39 R31.htm IDEA: XBRL DOCUMENT ﻿
v2.3.0.11

Employee benefit plans (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2011
Employee benefit plans [Abstract] |
Employee benefit plans Table |
Components of net periodic benefit cost for the Company's pension and other postretirement benefit plans were as follows:
Three Months |  | Pension Benefits |  |  | Other Postretirement Benefits |
Ended June 30, |  | 2011 |  |  | 2010 |  |  | 2011 |  |  | 2010 |
|  | (In thousands) |
Components of net periodic benefit cost: |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 827 |  |  | $ | 501 |  |  | $ | 383 |  |  | $ | 374 |
Interest cost |  |  | 4,959 |  |  |  | 4,004 |  |  |  | 1,161 |  |  |  | 1,317 |
Expected return on assets |  |  | (5,727 | ) |  |  | (4,992 | ) |  |  | (1,308 | ) |  |  | (1,577 | )
Amortization of prior service cost (credit) |  |  | 44 |  |  |  | 31 |  |  |  | (669 | ) |  |  | (915 | )
Amortization of net actuarial (gain) loss |  |  | 1,049 |  |  |  | 256 |  |  |  | (53 | ) |  |  | 67 |
Amortization of net transition obligation |  |  | - |  |  |  | - |  |  |  | 531 |  |  |  | 613 |
Curtailment loss |  |  | 1,218 |  |  |  | - |  |  |  | - |  |  |  | - |
Net periodic benefit cost, including amount capitalized |  |  | 2,370 |  |  |  | (200 | ) |  |  | 45 |  |  |  | (121 | )
Less amount capitalized |  |  | 287 |  |  |  | 107 |  |  |  | (28 | ) |  |  | 37 |
Net periodic benefit cost |  | $ | 2,083 |  |  | $ | (307 | ) |  | $ | 73 |  |  | $ | (158 | )
Six Months |  | Pension Benefits |  |  | Other Postretirement Benefits |
Ended June 30, |  |  | 2011 |  |  |  | 2010 |  |  |  | 2011 |  |  |  | 2010 |
|  | (In thousands) |
Components of net periodic benefit cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 1,654 |  |  | $ | 1,305 |  |  | $ | 722 |  |  | $ | 731 |
Interest cost |  |  | 9,919 |  |  |  | 8,930 |  |  |  | 2,350 |  |  |  | 2,594 |
Expected return on assets |  |  | (11,427 | ) |  |  | (10,684 | ) |  |  | (2,526 | ) |  |  | (2,969 | )
Amortization of prior service cost (credit) |  |  | 87 |  |  |  | 69 |  |  |  | (1,338 | ) |  |  | (1,779 | )
Amortization of net actuarial loss |  |  | 2,592 |  |  |  | 1,228 |  |  |  | 258 |  |  |  | 455 |
Amortization of net transition obligation |  |  | - |  |  |  | - |  |  |  | 1,062 |  |  |  | 1,145 |
Curtailment loss |  |  | 1,218 |  |  |  | - |  |  |  | - |  |  |  | - |
Net periodic benefit cost, including amount capitalized |  |  | 4,043 |  |  |  | 848 |  |  |  | 528 |  |  |  | 177 |
Less amount capitalized |  |  | 535 |  |  |  | 383 |  |  |  | (95 | ) |  |  | 84 |
Net periodic benefit cost |  | $ | 3,508 |  |  | $ | 465 |  |  | $ | 623 |  |  | $ | 93 |

X
- Details
Name: | us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix: | us-gaap
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e2417-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 158 -Paragraph 4, 7, 16, 20, 21 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: 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=6962843&loc=d3e1928-114920 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5, 6, 7 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e2410-114920 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=6930749&loc=d3e4179-114921 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e2439-114920 + Details
Name: | us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTextBlock
Namespace Prefix: | us-gaap
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration