Debt and deferred financing costs - Scheduled Maturities of Long-term Debt (Details) $ in Thousands	Mar. 31, 2020 USD ($)
Debt Instrument [Line Items]
2020	$ 9,383
2021	192,510
2022	12,510
2023	1,080,827
Total	1,295,230
Term Loan
Debt Instrument [Line Items]
2020	9,383
2021	12,510
2022	12,510
2023	1,080,827
Total	1,115,230
Revolver
Debt Instrument [Line Items]
2020	0
2021	180,000
2022	0
2023	0
Total	$ 180,000

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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-Topic 470
-SubTopic 20
-Section 50
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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
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