SERP (DETAILS) (USD $) In Thousands	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010
Defined Benefit Pension Plans And Defined Benefit Postretirement Plans Disclosure Abstract
Defined Benefit Plan Amortization Of Prior Service Cost Credit	$ 1,599	$ 0

The amount of the prior service cost or credit recognized in net periodic benefit cost relating to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph h

Name:	us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration