v3.8.0.1
Nature of Operations - Additional Information (Detail)
Sep. 30, 2017
State
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of states
50
X
- Definition
The number of states the entity operates in as of the balance sheet date.
+ References
No definition available.
+ Details
Name:
us-gaap_NumberOfStatesInWhichEntityOperates
Namespace Prefix:
us-gaap_
Data Type:
xbrli:integerItemType
Balance Type:
na
Period Type:
instant
X
- References
No definition available.
+ Details
Name:
us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix:
us-gaap_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration