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Derivative Instruments - Fair Value of Interest Rate Swaps (Details) - Interest rate swaps - USD ($) | Sep. 30, 2021 | Sep. 27, 2021 | Jun. 30, 2021 | Dec. 31, 2020 | Mar. 29, 2018 | Jul. 22, 2016
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Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Aggregate Notional Amount |  |  |  |  |  | $ 100,000,000
Derivative Liabilities | $ (1,689,000) |  |  | $ (10,255,000) |  |
2018 Term Loan A |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Aggregate Notional Amount | 100,000,000 | $ 150,000,000 | $ 150,000,000 |  | $ 150,000,000 |
2018 Term Loan A | Accounts payable and other liabilities |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Derivative Liabilities | (1,689,000) |  |  | (2,671,000) |  |
2018 Term Loan B |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Aggregate Notional Amount | 50,000,000 | $ 100,000,000 |  |  | $ 100,000,000 |
2018 Term Loan B | Accounts payable and other liabilities |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Derivative Liabilities | 0 |  |  | (1,338,000) |  |
2018 Term Loan C |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Aggregate Notional Amount | 100,000,000 |  |  |  |  |
2018 Term Loan C | Accounts payable and other liabilities |  |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |  |
Derivative Liabilities | $ 0 |  |  | $ (6,246,000) |  |

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- Definition Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=117331979&loc=d3e41228-113958 + Details
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- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959 + Details
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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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