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Long-term Debt - Schedule of Maturities of Long Term Debt (Detail) | 9 Months Ended
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Sep. 30, 2019 USD ($)
December 31, 2019-June 30, 2020 [Member] | Term A [Member] |
Debt Instrument [Line Items] |
Principal payment amount | $ 8,437,500
December 31, 2019-June 30, 2020 [Member] | Term B [Member] |
Debt Instrument [Line Items] |
Principal payment amount | 1,500,000.0
September 30, 2020-March 31, 2022 [Member] | Term A [Member] |
Debt Instrument [Line Items] |
Principal payment amount | 16,875,000.0
September 30, 2020-March 31, 2022 [Member] | Term B [Member] |
Debt Instrument [Line Items] |
Principal payment amount | 1,500,000.0
Term A Loan Maturity May 15, 2022 [Member] | Term A [Member] |
Debt Instrument [Line Items] |
Principal payment amount | 253,125,000.0
June 30, 2022-December 31, 2024 [Member] | Term B [Member] |
Debt Instrument [Line Items] |
Principal payment amount | 1,500,000.0
Term B Loan Maturity March 16, 2025 [Member] | Term B [Member] |
Debt Instrument [Line Items] |
Principal payment amount | $ 559,500,000.0

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of the required periodic payments applied to principal. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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