Amount of loss contingency liability.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

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

Bank segment - Contingencies (Details) - USD ($) $ in Millions	May. 21, 2015	Sep. 30, 2015	Dec. 31, 2014
March 2011 Class Action Lawsuit
Loss Contingencies [Line Items]
Litigation settlement, amount	$ 2.0
Loss contingency accrual			$ 2.0
American Savings Bank (ASB)
Loss Contingencies [Line Items]
Unfunded commitments to fund the company's LIHTC		$ 9.2	$ 14.8