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Long-Term Debt Narrative (Details) (USD $)
 1 Months Ended 0 Months Ended 1 Months Ended 0 Months Ended 1 Months Ended 0 Months Ended 9 Months Ended
Sep. 30, 2014
Feb. 04, 2014
Line of Credit [Member]
2012 Credit Facility [Member]
Feb. 04, 2014
Line of Credit [Member]
2012 Credit Facility [Member]
30-day LIBOR [Member]
Feb. 05, 2014
Line of Credit [Member]
2014 Credit Facility [Member]
Mar. 31, 2014
Line of Credit [Member]
2014 Credit Facility [Member]
Sep. 30, 2014
Line of Credit [Member]
2014 Credit Facility [Member]
Feb. 05, 2014
Line of Credit [Member]
2014 Credit Facility [Member]
Feb. 05, 2014
Line of Credit [Member]
2014 Credit Facility [Member]
30-day LIBOR [Member]
Feb. 05, 2014
Line of Credit [Member]
2014 Credit Facility [Member]
Prime Rate [Member]
Mar. 31, 2014
Other Notes Payable [Member]
Mar. 24, 2014
6.75 senior notes due 2021 [Member]
Senior Notes [Member]
Sep. 30, 2014
6.75 senior notes due 2021 [Member]
Senior Notes [Member]
Mar. 24, 2014
6.75 senior notes due 2021 [Member]
Senior Notes [Member]
Mar. 31, 2014
September 2012 [Member]
Other Notes Payable [Member]
Mar. 31, 2014
January 2012 [Member]
Other Notes Payable [Member]
Debt Instrument [Line Items]                              
Face amount $ 200,000,000                       $ 200,000,000    
Stated interest rate (percent)                         6.75%    
Proceeds from issuance of Senior Notes, net                     194,800,000        
Net proceeds from Senior Note used to payoff 2014 Credit Facility                         153,411,000    
Net proceeds from Senior Notes available for general corporate use                         41,389,000    
Debt Issuance Cost                       5,200,000      
Senior note, percentage of principal amount for redemption price prior to April 1,2017 (percent)                     100.00%        
Senior notes, percentage of notes redeemable with equity proceeds prior to April, 1, 2017 (percent)                     35.00%        
Senior note, percentage of principal amount for redemption price using equity proceeds prior to Apr. 1, 2017 (percent)                     106.75%        
Senior notes, percentage of principal amount required for redemption price, upon change of control (percent)                     101.00%        
Senior Notes, maximum number of days allowed for issue of identical new notes registered under Securities Act                     245 days        
Maximum borrowing capacity   205,000,000         160,000,000                
Line of credit facility expiration date   Feb. 28, 2015   Feb. 05, 2019                      
Basis spread on variable rate (percent)     2.00%         2.50% 1.50%            
Additional borrowing capacity with lender consent             50,000,000                
EBITDA leverage ratio requirement       2.5                      
Additional permitted unsecured debt       500,000,000                      
Foreign subsidiary stock pledged as collateral (percent)       65.00%                      
Commitment Fee (percent)       0.50%                      
Proceeds from notes payable         145,870,000         7,541,000          
Amount outstanding           17,500,000                  
Remaining borrowing capacity           142,500,000                  
Interest rate at end of period (percent)           2.69%                  
Notes payable                           $ 6,134,000 $ 1,407,000