Pension and Other Postretirement Plans (Contributions) (Details) (USD $)	12 Months Ended
Dec. 31, 2013
Defined Contribution Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected contribution for next fiscal year	$ 858,500
Defined Contribution Pension [Member] \| Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Adjusted funding target attainment percentage	80.00%
Chairman and President Non-Qualified Defined Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected contribution for next fiscal year	$ 2,000,000

Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

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