XML 29 R30.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Fair Value Measurements Information of Marketable Securities and Deferred Compensation Fund Investment Assets (Detail) (USD $) | Jun. 30, 2012 | Dec. 31, 2011
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Municipal bonds | $ 21,398,000 | $ 31,337,000
Equity securities - Deferred comp fund | 15,795,000 | 13,780,000
Carrying Amount |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Municipal bonds | 21,398,000 | 31,337,000
Equity securities - Deferred comp fund | 15,795,000 | 13,780,000
Money Market Funds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 3,232,000 | 3,029,000
Money Market Funds | Carrying Amount |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 3,232,000 | 3,029,000
Large-Cap Value |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 3,103,000 | 2,716,000
Large-Cap Value | Carrying Amount |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 3,103,000 | 2,716,000
Large-Cap Growth |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 2,470,000 | 2,184,000
Large-Cap Growth | Carrying Amount |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 2,470,000 | 2,184,000
Fixed Income |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 1,721,000 | 1,429,000
Fixed Income | Carrying Amount |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 1,721,000 | 1,429,000
Small Cap Value |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 1,329,000 | 1,244,000
Small Cap Value | Carrying Amount |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 1,329,000 | 1,244,000
Balanced And Lifestyle |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 1,122,000 | 814,000
Balanced And Lifestyle | Carrying Amount |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 1,122,000 | 814,000
Speciality |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 904,000 | 832,000
Speciality | Carrying Amount |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 904,000 | 832,000
International |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 688,000 | 562,000
International | Carrying Amount |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 688,000 | 562,000
Large Cap Blend |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 771,000 | 500,000
Large Cap Blend | Carrying Amount |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 771,000 | 500,000
Mid Cap Growth |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 328,000 | 363,000
Mid Cap Growth | Carrying Amount |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 328,000 | 363,000
Small Cap Growth |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 64,000 | 53,000
Small Cap Growth | Carrying Amount |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 64,000 | 53,000
Mid Cap Value |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 63,000 | 54,000
Mid Cap Value | Carrying Amount |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 63,000 | 54,000
Quoted Prices In Active Markets (Level 1) |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 12,563,000 | 10,751,000
Quoted Prices In Active Markets (Level 1) | Large-Cap Value |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 3,103,000 | 2,716,000
Quoted Prices In Active Markets (Level 1) | Large-Cap Growth |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 2,470,000 | 2,184,000
Quoted Prices In Active Markets (Level 1) | Fixed Income |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 1,721,000 | 1,429,000
Quoted Prices In Active Markets (Level 1) | Small Cap Value |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 1,329,000 | 1,244,000
Quoted Prices In Active Markets (Level 1) | Balanced And Lifestyle |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 1,122,000 | 814,000
Quoted Prices In Active Markets (Level 1) | Speciality |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 904,000 | 832,000
Quoted Prices In Active Markets (Level 1) | International |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 688,000 | 562,000
Quoted Prices In Active Markets (Level 1) | Large Cap Blend |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 771,000 | 500,000
Quoted Prices In Active Markets (Level 1) | Mid Cap Growth |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 328,000 | 363,000
Quoted Prices In Active Markets (Level 1) | Small Cap Growth |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 64,000 | 53,000
Quoted Prices In Active Markets (Level 1) | Mid Cap Value |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | 63,000 | 54,000
Significant Other Observable Inputs (Level 2) |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Municipal bonds | 21,398,000 | 31,337,000
Equity securities - Deferred comp fund | 3,232,000 | 3,029,000
Significant Other Observable Inputs (Level 2) | Money Market Funds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Equity securities - Deferred comp fund | $ 3,232,000 | $ 3,029,000

X
- Definition Carrying amount as of the balance sheet date of assets held under deferred compensation agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 17 -Article 5 + Details
Name: | us-gaap_DeferredCompensationPlanAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total debt and equity financial instruments including: (1) securities held-to-maturity, (2) trading securities, and (3) securities available-for-sale which are intended to be held for less than one year or the normal operating cycle, whichever is longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=6361293&loc=d3e6676-107765 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26626-111562 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 2 -Article 5 + Details
Name: | us-gaap_MarketableSecuritiesCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant