XML 28 R15.htm IDEA: XBRL DOCUMENT
v3.19.1

Retirement Benefit Plans | 9 Months Ended
--- | ---
Mar. 31, 2019
Retirement Benefit Plans |
Retirement Benefit Plans | 8. Retirement Benefit Plans We sponsor various retirement benefit plans including qualified and nonqualified defined benefit pension plans for our employees. The components of net periodic pension expense are as follows (in thousands):
|  | Three Months Ended March 31, |  | Nine Months Ended March 31,
|  | 2018 |  | 2019 |  | 2018 |  | 2019
Service cost |  | $ | 216 |  | $ | 98 |  | $ | 648 |  | $ | 295
Interest cost |  |  | 9 |  |  | 8 |  |  | 25 |  |  | 25
Amortization of prior service cost |  |  | 70 |  |  | 14 |  |  | 210 |  |  | 42
Net periodic pension expense |  | $ | 295 |  | $ | 120 |  | $ | 883 |  | $ | 362
For each of the three months ended March 31, 2018 and 2019, we made no contributions to these defined benefit plans. For each of the nine months ended March 31, 2018 and 2019, we made contributions of $1.0 million to these defined benefit plans. We also maintain various defined contribution plans. For each of the three months ended March 31, 2018 and 2019, we made contributions of $1.6 million to these defined contribution plans. For the nine months ended March 31, 2018 and 2019, we made contributions of $4.6 million and $4.7 million, respectively, to these defined contribution plans.

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

X
- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
Name: | us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration