XML 42 R31.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Contract Assets (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2018
Contract With Customer Asset And Liability [Abstract] |
Changes In Contract Assets | Significant changes in the contract asset balance during the pe riod are as follows:
| Three Months Ended
| March 31,
(in thousands) |  | 2018 |  |  | 2017
Transferred to receivables from contract assets recognized at |  |  |  |  |
the beginning of the period | $ | (145,217) |  | $ | (156,206)
Contract assets recognized, net of reclassification to accounts receivable |  | 146,344 |  |  | 149,645
Net change | $ | 1,127 |  | $ | (6,561)

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

X
- Definition Tabular disclosure of contract balances and changes in contract balances. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130551-203045 + Details
Name: | us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration