Long-Term Debt and Credit Facilities - Term Loan Repricing (Details) - USD ($) $ in Thousands	Jul. 13, 2018	Sep. 30, 2022	Dec. 31, 2021
Long-Term Debt and Credit Facilities.
Outstanding amount of term loans		$ 1,104,549	$ 1,249,227
First Amendment
Long-Term Debt and Credit Facilities.
Outstanding amount of term loans	$ 343,400
Reduction in interest rate (in percentage)	100.00%
First Amendment | Federal funds rate
Long-Term Debt and Credit Facilities.
Variable interest rate (as a percent)	0.50%
First Amendment | LIBOR
Long-Term Debt and Credit Facilities.
Floor interest rate	1.00%
Variable interest rate (as a percent)	6.50%
First Amendment | One-month adjusted LIBOR
Long-Term Debt and Credit Facilities.
Variable interest rate (as a percent)	1.00%
First Amendment | Base rate
Long-Term Debt and Credit Facilities.
Variable interest rate (as a percent)	5.50%
Senior secured revolving facility
Long-Term Debt and Credit Facilities.
Outstanding amount of term loans	$ 343,400
Maximum debt issuance costs for new lenders exceeded 10% test	100
Senior secured revolving facility | First Amendment
Long-Term Debt and Credit Facilities.
Debt issuance costs	1,000
Amortization expense of debt issuance costs	1,000
Write off of previously recognized debt issuance costs	$ 100