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Long-Term Debt - Senior Notes - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Nov. 15, 2019
Mar. 27, 2018
Jan. 19, 2018
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Debt Instrument [Line Items]                
Proceeds from borrowings, before offering expenses           $ 45,000 $ 0  
Interest expense related to amortization of debt issuance costs       $ 300 $ 300 $ 500 $ 500  
Revolving Credit Facility                
Debt Instrument [Line Items]                
Debt maturity date   Mar. 27, 2024            
3.95% Senior Notes Due 2028                
Debt Instrument [Line Items]                
Long-term debt, aggregate principal amount     $ 525,000          
Debt payment term           We pay interest on the 2028 Notes on February 1 and August 1 of each year    
Debt maturity date Nov. 15, 2029   Feb. 01, 2028          
Debt interest rate     3.95% 3.95%   3.95%   3.95%
Debt instrument redemption description           At our option, we may redeem the Senior Notes in whole or in part, at any time or from time to time at a redemption price equal to 100% of the principal amount of such Senior Notes to be redeemed, plus accrued and unpaid interest, if any, on those Senior Notes to the redemption date, plus a “make-whole” premium. Additionally, commencing on November 1, 2027, in the case of the 2028 Notes, and on August 15, 2029, in the case of the 2029 Notes, at our option, we may redeem the respective Senior Notes in whole or in part, at a redemption price equal to 100% of the principal amount of the Senior Notes to be redeemed, plus accrued and unpaid interest, if any, on those Senior Notes to the redemption date.    
Debt instrument, redemption percentage 100.00%   100.00%          
Debt instrument redemption upon the occurrence of change of control, description           Upon the occurrence of a change of control triggering event, as defined in the indentures, each holder of the Senior Notes may require us to purchase all or a portion of such holder’s Senior Notes at a price equal to 101% of their principal amount, plus accrued and unpaid interest, if any, to, but excluding, the repurchase date.    
Redemption price percentage of principal amount of debt instrument on change of control 101.00%   101.00%          
5.15% Senior Notes Due 2029                
Debt Instrument [Line Items]                
Long-term debt, aggregate principal amount $ 350,000              
Debt payment term           We pay interest on the 2029 Notes on May 15 and November 15 of each year    
Debt interest rate 5.15%     5.15%   5.15%   5.15%
Debt instrument, redemption percentage 100.00%   100.00%