Subsequent Event (Details) $ in Millions	1 Months Ended
Apr. 30, 2017 USD ($)
Canada \| Subsequent Event
Subsequent Event [Line Items]
Canada tax deposit refund	$ 0.4

Cash received from refund of deposits with other institutions during the period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3536-108585

Name:	us-gaap_ProceedsFromDepositsWithOtherInstitutions
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration