The total number of new claims filed pertaining to a loss contingency during the period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349

Name:	us-gaap_LossContingencyNewClaimsFiledNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Legal Proceedings and Contingencies - Indemnification and loss contingencies (Details) - complaint	Oct. 09, 2015	Jul. 28, 2015
Putative Class Action Complaint [Member]
Contingencies
Number of days allowed to file amended complaint		60 days
Beth Seltzer v. Hunt, et al.
Contingencies
Number of new claims filed	2