XML 72 R60.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Legal proceedings/contingencies (Details) $ in Millions | Dec. 31, 2018 USD ($)
--- | ---
Commitments and Contingencies Disclosure [Abstract] |
Purchase obligations | $ 49.7

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

X
- Definition Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier. + References No definition available. + Details
Name: | us-gaap_PurchaseObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant