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Notes Payable and Other Noncurrent Liabilities (Details) - USD ($) $ in Thousands |  |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | --- | --- | ---
Nov. 01, 2019 | Oct. 31, 2019 | Jan. 22, 2019 | Oct. 31, 2019 | Mar. 31, 2019 | Sep. 30, 2019
Notes Payable and Other Noncurrent Liabilities |  |  |  |  |  |
Repayments of term loan |  |  | $ 59,850 |  |  |
Cash collateral released on repayment of debt |  |  | 61,667 |  |  |
Amended and restated credit agreement |  |  |  |  |  |
Notes Payable and Other Noncurrent Liabilities |  |  |  |  |  |
Amount of credit facilities |  |  | $ 325,000 |  |  |
Term of credit facility |  |  | 5 years |  |  |
Loan modification costs expensed |  |  |  |  | $ 150 |
Amended and restated credit agreement | Orbis Education |  |  |  |  |  |
Notes Payable and Other Noncurrent Liabilities |  |  |  |  |  |
Acquisition consideration funded by credit agreement |  |  | $ 191,000 |  |  |
Amended and restated credit agreement | 30-Day LIBOR |  |  |  |  |  |
Notes Payable and Other Noncurrent Liabilities |  |  |  |  |  |
Margin on interest rate |  |  | 2.00% |  |  |
Amended and restated credit agreement | Term loan facility |  |  |  |  |  |
Notes Payable and Other Noncurrent Liabilities |  |  |  |  |  |
Amount of credit facilities |  |  | $ 243,750 |  |  |
Installment payment as a percentage of principal amount |  |  | 5.00% |  |  |
Loan modification costs |  |  | $ 1,639 |  |  |
Amended and restated credit agreement | Term loan facility | 30-Day LIBOR |  |  |  |  |  |
Notes Payable and Other Noncurrent Liabilities |  |  |  |  |  |
Margin on interest rate |  |  |  |  |  | 2.00%
Amended and restated credit agreement | Revolving credit facility |  |  |  |  |  |
Notes Payable and Other Noncurrent Liabilities |  |  |  |  |  |
Amount of credit facilities |  |  | 81,250 |  |  |
Loan modification costs |  |  | 596 |  |  |
Amended and restated credit agreement | Revolving credit facility | Orbis Education |  |  |  |  |  |
Notes Payable and Other Noncurrent Liabilities |  |  |  |  |  |
Acquisition consideration funded by credit agreement |  |  | $ 6,250 |  |  |
Amended and restated credit agreement | Revolving credit facility | 30-Day LIBOR |  |  |  |  |  |
Notes Payable and Other Noncurrent Liabilities |  |  |  |  |  |
Margin on interest rate |  |  |  |  |  | 2.00%
Subsequent Event | Revolving credit facility |  |  |  |  |  |
Notes Payable and Other Noncurrent Liabilities |  |  |  |  |  |
Repayments of revolver |  |  |  | $ 26,250 |  |
Subsequent Event | Amendment - October 31, 2019 | Term loan facility |  |  |  |  |  |
Notes Payable and Other Noncurrent Liabilities |  |  |  |  |  |
Amount of credit facilities |  | $ 150,625 |  | 150,625 |  |
Increase (decrease) in facility |  | (68,750) |  |  |  |
Subsequent Event | Amendment - October 31, 2019 | Revolving credit facility |  |  |  |  |  |
Notes Payable and Other Noncurrent Liabilities |  |  |  |  |  |
Amount of credit facilities |  | 150,000 |  | $ 150,000 |  |
Repayments of revolver | $ 68,750 |  |  |  |  |
Increase (decrease) in facility |  | $ 68,750 |  |  |  |

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