XML 40 R29.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Employee Benefit Plans (Tables) | 6 Months Ended
--- | ---
Sep. 30, 2018
Components of Postretirement Benefit Cost and Pension Cost | The components of the postretirement benefit cost are as follows:
|  | Three Months Ended |  |  | Six Months Ended |
|  | September 30, |  |  | September 30, |
|  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Interest cost |  | $ | 6 |  |  | $ | 7 |  |  | $ | 12 |  |  | $ | 13 |
Amortization of actuarial loss |  |  | 7 |  |  |  | 9 |  |  |  | 14 |  |  |  | 19 |
Net postretirement benefit cost |  | $ | 13 |  |  | $ | 16 |  |  | $ | 26 |  |  | $ | 32 |
Pension Plans, Defined Benefit [Member] |
Components of Postretirement Benefit Cost and Pension Cost | The components of pension cost are as follows:
|  | Three Months Ended |  |  | Six Months Ended |
|  | September 30, |  |  | September 30, |
|  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Service cost |  | $ | 143 |  |  | $ | 150 |  |  | $ | 286 |  |  | $ | 299 |
Interest cost |  |  | 335 |  |  |  | 355 |  |  |  | 670 |  |  |  | 711 |
Expected return on assets |  |  | (765 | ) |  |  | (745 | ) |  |  | (1,531 | ) |  |  | (1,489 | )
Amortization of actuarial loss |  |  | 211 |  |  |  | 254 |  |  |  | 423 |  |  |  | 507 |
Net pension (income) cost |  | $ | (76 | ) |  | $ | 14 |  |  | $ | (152 | ) |  | $ | 28 |

X
- 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RetirementPlanTypeAxis=us-gaap_PensionPlansDefinedBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |