Debt - Summary of Total Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Aug. 21, 2018
Debt Instrument [Line Items]
Total debt	$ 1,373,155	$ 671,756
Debt issuance costs	(21,905)	(13,203)
Less current portion of term credit facility	34,148	20,767
Less current portion of debt issuance costs	(4,802)	(2,980)
Total long-term debt	$ 1,339,007	650,989
5.750% Senior Notes, due August 2026
Debt Instrument [Line Items]
Stated interest rate (percentage)	5.75%
Term Loans
Debt Instrument [Line Items]
Total debt	$ 756,060	284,959
Less current portion of term credit facility	38,950	23,747
Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Total debt	239,000	0
Senior Notes \| 5.750% Senior Notes, due August 2026
Debt Instrument [Line Items]
Total debt	$ 400,000	$ 400,000
Stated interest rate (percentage)			5.75%

Contractual interest rate for funds borrowed, under the debt agreement.

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Amount, after accumulated amortization, of debt issuance costs classified as current. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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