Recently Issued Accounting Standards - Narrative (Details) $ in Thousands	Jun. 30, 2017 USD ($)
Retained Earnings \| New Accounting Pronouncement, Early Adoption, Effect \| Accounting Standards Update 2016-09, Forfeiture Rate Component
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Decrease to retained earnings associated with our election to recognize forfeitures	$ 169

Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

No definition available.

Name:	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant