Fair Value Disclosures (Company's Assets and Liabilities Accounted for at Fair Value on a Recurring Basis) (Details) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011
Fair value, liabilities measured on recurring basis	$ 271
Transfer into or out of fair value measurement	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair value, liabilities measured on recurring basis
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Interest Rate Swap Agreements [Member]
Fair value, liabilities measured on recurring basis
Significant Other Observable Inputs (Level 2) [Member]
Fair value, liabilities measured on recurring basis	271
Significant Other Observable Inputs (Level 2) [Member] | Interest Rate Swap Agreements [Member]
Fair value, liabilities measured on recurring basis	271
Significant Unobservable Inputs (Level 3) [Member]
Fair value, liabilities measured on recurring basis
Significant Unobservable Inputs (Level 3) [Member] | Interest Rate Swap Agreements [Member]
Fair value, liabilities measured on recurring basis
Interest Rate Swap Agreements [Member]
Fair value, liabilities measured on recurring basis	$ 271