XML 29 R31.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Goodwill and Intangible Assets (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2019
Goodwill and Intangible Assets [Abstract] |
Changes in Carrying Amount of Goodwill |
|  |  |  |  |  |  | Specialty |  |  |
(in thousands) | Civil |  |  | Building |  | Contractors |  | Total
Gross goodwill | $ | 492,074 |  | $ | 424,724 |  | $ | 156,193 |  | $ | 1,072,991
Accumulated impairment |  | (76,716) |  |  | (411,269) |  |  | — |  |  | (487,985)
Balance as of December 31, 2018 |  | 415,358 |  |  | 13,455 |  |  | 156,193 |  |  | 585,006
Second quarter 2019 impairment |  | (210,215) |  |  | (13,455) |  |  | (156,193) |  |  | (379,863)
Balance as of December 31, 2019(a) | $ | 205,143 |  | $ | — |  | $ | — |  | $ | 205,143
_____________________________________________________________________________________________________________ (a)As of December 31, 2019, accumulated impairment was $867.8 million.

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 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