Variable Interest Entities (Details) $ in Thousands	Dec. 31, 2015 USD ($) Entities	Dec. 31, 2014 USD ($) Entities
Consolidated Variable Interest Entities [Member]
Variable Interest Entity [Line Items]
Number Of Variable Interest Entities	0	0
Non Consolidated Variable Interest Entities [Member]
Variable Interest Entity [Line Items]
Number Of Variable Interest Entities	6	3
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets \| $	$ 379,939	$ 286,783

Carrying amount of the assets in the reporting entity's statement of financial position that relate to the reporting entity's variable interest in the Variable Interest Entity (VIE), where the reporting entity is not the VIE's primary beneficiary.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph a
-URI http://asc.fasb.org/extlink&oid=52262685&loc=d3e5728-111685

Name:	us-gaap_VariableInterestEntityNonconsolidatedCarryingAmountAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant