XML 102 R85.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Supplemental Guarantor Financial Information - Additional Information (Details) | 12 Months Ended
--- | ---
Dec. 31, 2017
Condensed Financial Information of Parent Company Only Disclosure [Abstract] |
Ownership percentage | 100.00%

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

X
- Definition Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions. + References No definition available. + Details
Name: | us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration