XML 37 R31.htm IDEA: XBRL DOCUMENT
v3.2.0.727

Employee Benefit Plans (Table Text Block) | 3 Months Ended
--- | ---
Jun. 30, 2015
Disclosure Text Block Supplement [Abstract] |
Net period benefit and postretirement costs |
|  | Quarter Ended June 30,
|  | 2015 |  | 2014
|  | (Unaudited)
|  | (In thousands)
Service cost for benefits earned during the period | $ | 240 | $ | 207
Interest cost on accumulated postretirement benefit |  | 188 |  | 180
Other components |  | 9 |  | 3
Net periodic postretirement benefit cost | $ | 437 | $ | 390

X
- References No definition available. + Details
Name: | us-gaap_DisclosureTextBlockSupplementAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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=58740216&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfCostsOfRetirementPlansTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration