XML 39 R27.htm IDEA: XBRL DOCUMENT
v3.19.1

Revenue (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2019
Revenue from Contract with Customer [Abstract] |
Contract with Customer, Asset and Liability | The following table presents the beginning and ending balances and significant changes in the costs in excess of billings and billings in excess of cost balance during the three months ended March 31, 2019 and 2018, respectively (in thousands):
| March 31, 2019 |  | December 31, 2018
Costs in excess of billings | $ | 25,519 |  |  | $ | 22,634 |
Billings in excess of cost | (18,259 | ) |  | (17,857 | )
Unearned revenue | (12,917 | ) |  | (12,028 | )
| Three Months Ended March 31, 2019 |  | Three Months Ended March 31, 2018
Revenue recognized in the period from: |  |  |
Amounts included in billings in excess of cost at the beginning of the period | $ | 9,697 |  |  | $ | 8,340 |
Amounts included in unearned revenue at the beginning of the period | $ | 4,661 |  |  | $ | 1,836 |

X
- Definition Tabular disclosure of contract balances and changes in contract balances. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130551-203045 + Details
Name: | us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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