XML 32 R83.htm IDEA: XBRL DOCUMENT
v3.19.3

Condensed Consolidating Financial Information - Narrative (Details) | Sep. 30, 2019
--- | ---
Wholly Owned Domestic Subsidiaries [Line Items] |
Equity method investment, ownership percentage | 50.00%
Parent Company |
Wholly Owned Domestic Subsidiaries [Line Items] |
Equity method investment, ownership percentage | 100.00%

X
- Definition [Line Items] for Wholly Owned Domestic Subsidiaries [Table] + References No definition available. + Details
Name: | out_WhollyOwnedDomesticSubsidiariesLineItems
Namespace Prefix: | out_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
Name: | us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=srt_ParentCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |