Consolidated Condensed Statement of Stockholders' Equity (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2014
Statement Of Stockholders Equity [Abstract]
Cumulative effect of change in accounting principle for low income housing tax credits, tax	$ 270

Amount of the related income tax effect of a cumulative effect on retained earnings.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 250

-SubTopic 10

-Section 50

-Paragraph 9

-URI http://asc.fasb.org/extlink&oid=56949863&loc=d3e22663-107794

Name:	us-gaap_CumulativeEffectOnRetainedEarningsTax1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration