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v3.19.3

Long-Term Debt - Additional Information (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018
Debt Instrument [Line Items] |  |  |  |
Long-term debt | $ 794,171,000 | $ 794,171,000 |  | $ 456,900,000
Amortization of debt discount |  | 6,038,000 | $ 0 |
Loans Payable |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term debt, gross | 258,400,000 | 258,400,000 |  |
Long-term debt | 256,748,000 | 256,748,000 |  | 144,064,000
Loans Payable | Amended and Restated Senior Credit Agreement |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Face amount | 265,000,000.0 | 265,000,000.0 |  |
Revolving line of credit |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term debt | 247,000,000 | 247,000,000 |  | 312,000,000
Remaining borrowing capacity | 335,500,000 | 335,500,000 |  |
Revolving line of credit | Amended and Restated Senior Credit Agreement |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum borrowing capacity | 585,000,000.0 | 585,000,000.0 |  |
Letter of Credit |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Letters of credit outstanding, amount | 2,500,000 | 2,500,000 |  |
Convertible Notes Payable | 2.625% Convertible Notes Due 2024 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Face amount | $ 345,000,000.0 | $ 345,000,000.0 |  |
Interest rate, stated percentage | 2.625% | 2.625% |  |
Interest rate, effective percentage | 6.14% | 6.14% |  |
Debt Instrument, Convertible, Gross Amount of Equity Component | $ (51,600,000) | $ (51,600,000) |  |
Amortization of debt discount | 2,300,000 | 6,000,000.0 |  |
Interest expense, debt | $ 2,300,000 | $ 6,000,000.0 |  |
Initial conversion rate |  | 11.2608 |  |
Conversion price (in dollars per share) | $ 88.80 | $ 88.80 |  |
Option indexed to issuer's equity, strike price (in dollars per share) |  | $ 114.92 |  |
Equity component of convertible debt | $ 39,100,000 | $ 39,100,000 |  |
Long-term Debt | Amended and Restated Senior Credit Agreement |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Interest rate, effective percentage | 3.813% | 3.813% |  |
Mortgage notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Long-term debt | $ 0 | $ 0 |  | $ 836,000
London Interbank Offered Rate (LIBOR) | Long-term Debt | Amended and Restated Senior Credit Agreement |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable rate |  | 1.75% |  |
Federal Funds Effective Swap Rate | Long-term Debt | Amended and Restated Senior Credit Agreement |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable rate |  | 0.50% |  |
Eurodollar | Long-term Debt | Amended and Restated Senior Credit Agreement |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable rate |  | 1.00% |  |
Call Option |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Hedge and warrant transactions, net cash paid |  | $ 21,000,000.0 |  |

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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=109500613&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=119400593&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=6877327&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=6876686&loc=d3e534808-122878 + Details
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