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Description of Business and Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)
 3 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2013
Segment
Dec. 31, 2012
Dec. 31, 2011
Summary Of Significant Accounting Policies [Line Items]        
Reporting business segments   2    
Ownership percentage 50.00% 50.00%    
Reserve for uncollectible accounts $ 7,400,000 $ 7,400,000 $ 6,700,000  
Impairment of trade name 2,904,000 2,904,000    
Minimum percentage of revenue accounted for by one customer   10.00% 10.00% 10.00%
State tax net operating losses, valuation allowance $ 100,000 $ 100,000    
Minimum [Member]
        
Summary Of Significant Accounting Policies [Line Items]        
Percentage of likelihood of impairment test for indefinite lived intangibles   50.00%    
Building And Improvement [Member] | Maximum [Member]
        
Summary Of Significant Accounting Policies [Line Items]        
Property and equipment estimated life   40 years    
Computer Equipment and Software [Member] | Maximum [Member]
        
Summary Of Significant Accounting Policies [Line Items]        
Property and equipment estimated life   5 years    
Furniture and Equipment [Member] | Maximum [Member]
        
Summary Of Significant Accounting Policies [Line Items]        
Property and equipment estimated life   10 years    
Transportation Equipment and Automobiles [Member] | Maximum [Member]
        
Summary Of Significant Accounting Policies [Line Items]        
Property and equipment estimated life   15 years    
Software Development [Member] | Maximum [Member]
        
Summary Of Significant Accounting Policies [Line Items]        
Intangible assets estimated useful life   5 years    
Leasehold Improvements [Member]
        
Summary Of Significant Accounting Policies [Line Items]        
Property and equipment estimated life, description   The shorter of useful life or lease term.