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Long-Term Debt - Narrative (Details)
3 Months Ended
Apr. 04, 2018
Oct. 02, 2017
USD ($)
Apr. 28, 2017
USD ($)
Mar. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Debt Instrument [Line Items]          
Debt issuance costs       $ 7,183,000 $ 7,486,000
Senior 5.125% Unsecured Notes, Due 2025 | Senior unsecured notes          
Debt Instrument [Line Items]          
Debt face value     $ 400,000,000    
Debt stated rate     5.125%    
Debt issuance costs     $ 7,000,000    
Senior 5.125% Unsecured Notes, Due 2025 | Senior unsecured notes | Redemption Period One          
Debt Instrument [Line Items]          
Debt redemption price     100.00%    
Senior 5.125% Unsecured Notes, Due 2025 | Senior unsecured notes | Redemption Period Two          
Debt Instrument [Line Items]          
Debt redemption price     40.00%    
Term Loan B, Maturing 2024          
Debt Instrument [Line Items]          
Debt face value   $ 300,000,000      
Interest rate reduction 25.00%        
Net leverage ratio requirement   2.75      
Variable interest rate       4.50% 4.34%
Weighted average interest rate       4.50%  
Unsecured subordinated notes payable periodic payment   $ 3,000,000      
Term Loan B, Maturing 2024 | Minimum | LIBOR          
Debt Instrument [Line Items]          
LIBOR plus margin range   2.00%      
Term Loan B, Maturing 2024 | Maximum | LIBOR          
Debt Instrument [Line Items]          
LIBOR plus margin range   1.75%      
Amended and restated revolving credit facility | Revolving credit facility          
Debt Instrument [Line Items]          
Revolving credit and term loan agreement     $ 150,000,000    
Net leverage ratio requirement       5.5  
Amended and restated revolving credit facility | Revolving credit facility | Minimum          
Debt Instrument [Line Items]          
Percentage of commitment fees of total unused commitment under revolving credit facility       0.30%  
Amended and restated revolving credit facility | Revolving credit facility | Minimum | LIBOR          
Debt Instrument [Line Items]          
LIBOR plus margin range     1.75%    
Amended and restated revolving credit facility | Revolving credit facility | Maximum          
Debt Instrument [Line Items]          
Percentage of commitment fees of total unused commitment under revolving credit facility       0.50%  
Amended and restated revolving credit facility | Revolving credit facility | Maximum | LIBOR          
Debt Instrument [Line Items]          
LIBOR plus margin range     2.50%    
Amended and restated revolving credit facility | Letter of Credit          
Debt Instrument [Line Items]          
Letters of credit outstanding       $ 6,000,000 $ 100,000