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Organization and Summary of Significant Accounting Policies - Accumulated Other Comprehensive Income (Loss) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accumulated other comprehensive income (loss), interest rate swaps, net of tax	$ 735,000
Accumulated other comprehensive income (loss), interest rate swap, tax benefit	(468,000)	(1,788,000)
Accumulated other comprehensive income (loss) related to foreign currency translation, net of tax	208,000	(89,000)
Accumulated other comprehensive income (loss), foreign currency translation, tax benefit	12,000	(7,000)
Accumulated other comprehensive income (loss), marketable securities, net of tax		(1,100,000)
Accumulated other comprehensive income (Loss), marketable securities, tax		$ 696,000

Accumulated change, net of tax, in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses.

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- Definition

Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.

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