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Derivative Instruments and Hedging Activities - Foreign Exchange Currency Forward Contracts Not Designated as Hedging Instruments (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Jul. 31, 2019
Derivative [Line Items] |  |  |  |
Cash flow hedge, interest rate swap agreements | $ (39,947,000) | $ (8,783,000) | $ (973,000) |
Foreign Exchange Currency Forward Contracts | 17,005,000 | 6,003,000 | 11,070,000 |
Net Investment Hedging |  |  |  |
Derivative [Line Items] |  |  |  |
Cumulative net losses | 28,641,000 |  |  |
Interest Rate Swap Agreements |  |  |  |
Derivative [Line Items] |  |  |  |
Notional amount of derivatives | 350,000,000 | 350,000,000 |  | $ 350,000,000
Cumulative net losses | 21,062,000 |  |  |
Interest Rate Swap Agreements | Cash Flow Hedging |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative liability | (21,062,000) | (8,774,000) |  |
Interest Rate Swap Agreements | Designated Hedging Instruments |  |  |  |
Derivative [Line Items] |  |  |  |
Cash flow hedge, interest rate swap agreements | 12,288,000 | 7,801,000 | 973,000 |
August 2023 Cross Currency Swap Agreements | Net Investment Hedging |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative liability | (8,229,000) | (982,000) |  |
August 2023 Cross Currency Swap Agreements | Designated Hedging Instruments | Net Investment Hedging |  |  |  |
Derivative [Line Items] |  |  |  |
Net investment hedge, currency swap agreements | 7,247,000 | 982,000 | 0 |
February 2026 Cross Currency Swap Agreements | Net Investment Hedging |  |  |  |
Derivative [Line Items] |  |  |  |
Derivative liability | (20,412,000) | 0 |  |
February 2026 Cross Currency Swap Agreements | Designated Hedging Instruments | Net Investment Hedging |  |  |  |
Derivative [Line Items] |  |  |  |
Net investment hedge, currency swap agreements | 20,412,000 | 0 | 0 |
Foreign exchange contracts |  |  |  |
Derivative [Line Items] |  |  |  |
Net payments | 0 | 737,000 | 5,797,000 |
Foreign exchange contracts | Derivatives Not Designated as Hedging Instruments |  |  |  |
Derivative [Line Items] |  |  |  |
Notional amount of derivatives | 0 | 0 |  |
Foreign Exchange Currency Forward Contracts | $ 0 | $ 737,000 | $ 4,954,000 |

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