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v3.20.1

Commitments and Contingencies - Additional Information (Details) shares in Thousands, ¥ in Billions | 2 Months Ended | 3 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
May 03, 2019 USD ($) | Mar. 31, 2020 USD ($) | Mar. 31, 2019 USD ($) | Feb. 29, 2020 USD ($) | Jul. 26, 2019 USD ($) | Mar. 31, 2019 JPY (¥) | Jun. 24, 2016 USD ($) | Nov. 16, 2015 | Jul. 31, 2015 USD ($) shares
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |
Unfunded Commitments for Capital Contributions |  | $ 13,737,000 |  |  |  |  |  |  |
Short-Term Borrowings |  | 0 | $ 30,000,000 |  |  |  |  |  |
Cash Paid For Contingent Consideration |  | 81,000 | 2,008,000 |  |  |  |  |  |
Business Combination, Contingent Consideration, Liability |  | 211,000 |  |  |  |  |  |  |
Asset Acquisition, Contingent Consideration, Liability |  |  | 4,463,000 |  |  |  |  |  |
Margin Deposit Assets |  | 6,097,000 |  |  |  |  |  |  |
Derivative, Gain (Loss) on Derivative, Net |  | $ (9,228,000) |  |  |  |  |  |  |
Number of Foreign Currency Derivatives Held |  | 0 |  |  |  |  |  |  |
Number of Public Offerings |  |  |  |  |  |  |  | 4 |
Underwritten Shares (in shares) | shares |  |  |  |  |  |  |  |  | 293
Aggregate Offering Price |  |  |  |  |  |  |  |  | $ 30,800,000
BBVA Bancomer [Member] |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |
Maximum Borrowing Capacity |  | $ 6,323,000 |  |  |  |  |  |  |
BBVA Bancomer [Member] | Inter-Bank Balance Interest Rate [Member] |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  | 0.10% |  |  |  |  |  |  |
Secured Line of Credit [Member] | PNC Bank [Member] |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |
Maximum Borrowing Capacity |  |  |  |  |  |  | $ 30,000,000 |  |
Amount Outstanding During Period | $ 30,000,000 |  |  |  |  |  |  |  |
Secured Line of Credit [Member] | PNC Bank [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  | 1.25% |  |  |  |  |  |  |
Unsecured Line of Credit [Member] | PNC Bank [Member] |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |
Maximum Borrowing Capacity |  |  |  |  | $ 20,000,000 |  |  |  |
Unsecured Line of Credit [Member] | PNC Bank [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  | 1.50% |  |  |  |  |  |  |
Foreign Exchange Forward [Member] |  |  |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |  |  |
Derivative Asset, Notional Amount |  |  | 35,598,000 | $ 38,908,000 |  | ¥ 3.8 |  |  |
Derivative Asset, Fair Value, Gross Asset |  |  | $ 22,000 |  |  |  |  |  |

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