XML 80 R44.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Goodwill and other intangible assets (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract] |
Changes in the carrying amount of goodwill | The changes in the carrying amount of goodwill for the year ended December 31, 2019, were as follows:
| Balance at January 1, 2019 |  | Goodwill Acquired During the Year |  | Measurement Period Adjustments |  | Balance at December 31, 2019 |
| (In thousands)
Natural gas distribution | $ | 345,736 |  | $ | — |  | $ | — |  | $ | 345,736 |
Construction materials and contracting | 209,421 |  | 14,482 |  | (6,669 | ) | 217,234 |
Construction services | 109,765 |  | 8,623 |  | — |  | 118,388 |
Total | $ | 664,922 |  | $ | 23,105 |  | $ | (6,669 | ) | $ | 681,358 |
The changes in the carrying amount of goodwill for the year ended December 31, 2018, were as follows:
| Balance at January 1, 2018 |  | Goodwill Acquired During the Year |  | Measurement Period Adjustments |  | Balance at December 31, 2018 |
| (In thousands)
Natural gas distribution | $ | 345,736 |  | $ | — |  | $ | — |  | $ | 345,736 |
Construction materials and contracting | 176,290 |  | 33,131 |  | — |  | 209,421 |
Construction services | 109,765 |  | — |  | — |  | 109,765 |
Total | $ | 631,791 |  | $ | 33,131 |  | $ | — |  | $ | 664,922 |
Other amortizable intangible assets | Other amortizable intangible assets at December 31 were as follows:
| 2019 |  | 2018 |
| (In thousands)
Customer relationships | $ | 17,958 |  | $ | 22,720 |
Less accumulated amortization | 6,268 |  | 13,535 |
| 11,690 |  | 9,185 |
Noncompete agreements | 3,439 |  | 2,605 |
Less accumulated amortization | 1,957 |  | 1,956 |
| 1,482 |  | 649 |
Other | 8,094 |  | 6,458 |
Less accumulated amortization | 6,020 |  | 5,477 |
| 2,074 |  | 981 |
Total | $ | 15,246 |  | $ | 10,815 |
Estimated amortization expense | The amounts of estimated amortization expense for identifiable intangible assets as of December 31, 2019, were:
| 2020 |  | 2021 |  | 2022 |  | 2023 |  | 2024 |  | Thereafter |
| (In thousands)
Amortization expense | $ | 3,365 |  | $ | 2,016 |  | $ | 1,968 |  | $ | 1,924 |  | $ | 1,610 |  | $ | 4,363 |

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

X
- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
Name: | us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13854-109267 + Details
Name: | us-gaap_ScheduleOfGoodwillTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration