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Document and Entity Information
Financial Statements
Condensed Consolidated Balance Sheets
Condensed Consolidated Balance Sheets (Parenthetical)
Condensed Consolidated Statements Of Comprehensive Income
Condensed Consolidated Statements Of Cash Flows
Notes to Financial Statements
Nature of Business
Basis of Presentation
Net Income Per Common Share
Acquisitions
Fair Value of Financial Instruments
Auction Rate Securities
Insurance
Line of Credit
Benefit Plans
Commitments and Contingencies
Income Taxes
Segment Information
Accounting Policies
Basis of Presentation (Policies)
Notes Tables
Basis of Presentation (Tables)
Net Income Per Common Share (Tables)
Acquisitions (Tables)
Fair Value of Financial Instruments (Tables)
Auction Rate Securities (Tables)
Insurance (Tables)
Line of Credit (Tables)
Benefit Plans (Tables)
Segment Information (Tables)
Notes Details
Basis of Presentation - Additional Information (Detail)
Segments and Their Activities (Detail)
Calculations of Basic and Diluted Net Income Per Common Share (Detail)
Antidilutive Shares Excluded from Calculation of Net Income Per Common Share (Detail)
Acquisitions - Additional Information (Detail)
Preliminary Purchase Price and Related Allocations (Detail)
Fair Value of Financial Instruments (Detail)
Fair Value of Financial Instruments (Parenthetical) (Detail)
Auction Rate Securities - Additional Information (Detail)
Significant Assumptions Used to Determine Fair Value of Auction Rate Securities (Detail)
Changes in Cost Basis and Fair Value of Auction Rate Securities (Detail)
Insurance - Additional Information (Detail)
Standby Letters of Credit, Surety Bonds and Restricted Insurance Deposits Outstanding to Collaterize Self-Insurance Obligations (Detail)
Line of Credit - Additional Information (Detail)
Company's Interest Rate Swap Contract on Consolidated Financial Statements (Detail)
Components of Net Periodic Benefit Cost of Defined Benefit Plans and Post-Retirement Benefit Plans (Detail)
Commitments and Contingencies - Additional Information (Detail)
Income Taxes - Additional Information (Detail)
Segment Information - Additional Information (Detail)
Reportable Operating Segments (Detail)
All Reports
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