Summary of Significant Accounting Policies Controlling Interest Percentage (Details)	Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Controlling interest percentage by parent	60.00%
Noncontrolling interest percentage by parent	40.00%

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

No definition available.

Name:	us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant