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v3.20.2

Fair Value Measurements - Narrative (Details) - USD ($) | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | May 31, 2020 | Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Level 1 to level 2 transfers | $ 0 |  | $ 0 |  |  | $ 0
Equity securities | 100,000 |  | 100,000 |  |  | 400,000
Realized gains | 0 | $ 0 | (100,000) |  |  |
Equity securities, unrealized gain (loss) | 0 | $ 0 | 0 | $ 0 |  |
Equity Securities without readily determinable fair value | 0 |  | 0 |  |  | 1,500,000
Impairment losses | 100,000 |  | 1,400,000 |  |  |
Debt Securities, held-to-maturity, restricted | 72,500,000 |  | 72,500,000 |  |  |
Held-to-maturity, allowance for credit loss | 1,000,000.0 |  | 1,000,000.0 |  |  |
Restricted cash | 1,200,000 |  | 1,200,000 |  |  |
Restricted investments, at fair value | 79,300,000 |  | 79,300,000 |  |  |
Long-term debt, gross | 1,336,300,000 |  | 1,336,300,000 |  |  | $ 1,257,800,000
Contingent consideration liability |  |  |  |  | $ 7,000,000.0 |
Variable Interest Rate |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Long-term debt, gross | 956,300,000 |  | 956,300,000 |  |  |
Senior Notes |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Long-term debt, gross | 300,000,000.0 |  | 300,000,000.0 |  |  |
Debt instrument, fair value | 296,600,000 |  | 296,600,000 |  |  |
Reported Value Measurement |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Finance lease obligations | 80,000,000.0 |  | 80,000,000.0 |  |  |
Estimate of Fair Value Measurement |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |
Finance lease obligations | $ 102,600,000 |  | $ 102,600,000 |  |  |

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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 3: 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=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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