XML 48 R28.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Subsequent Events (Notes) | 12 Months Ended
--- | ---
Dec. 31, 2017
Subsequent Event [Member] |
Subsequent Event [Line Items] |
Subsequent Events [Text Block] | Subsequent Events The Company closed the acquisition of Hetsco, Inc. on January 13, 2017. The Company acquired Hetsco, Inc. from Global Power Equipment Group, Inc. for approximately $22 million. Hetsco, Inc. provides emergency, specialty welding, and construction services to natural gas processing, petrochemical, and air gas separation industries and will be included in the E&C operating segment.

X
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business. + References No definition available. + Details
Name: | us-gaap_SubsequentEventsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |