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Earnings Per Share - Additional Information (Detail) - 4.50 % Convertible Senior Notes $ / shares in Units, $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2021 USD ($) d $ / shares shares | Dec. 31, 2020 $ / shares
Earnings Per Share Disclosure [Line Items] |  |
Interest rate | 4.50% |
Common stock, strike price | $ 18.65 |
Debt instrument convertible conversion, percentage | 130.00% |
Exercise price |  | $ 14.35
Common shares issued | shares | 32,051 |
Convertible senior note, if-converted value in excess of outstanding principal value | $ | $ 180,842 |
Debt Instrument, Convertible, Threshold Trading Days | d | 30 |
Minimum |  |
Earnings Per Share Disclosure [Line Items] |  |
Debt Instrument, Convertible, Threshold Trading Days | d | 20 |
Warrant |  |
Earnings Per Share Disclosure [Line Items] |  |
Common stock, strike price | $ 22.08 |

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- Definition The price per share of the conversion feature embedded in the debt instrument. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123466204&loc=SL6031898-161870 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 + Details
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- Definition The amount by which the convertible debt's if-converted value exceeds its principle amount at the balance sheet date, regardless of whether the instrument is currently convertible. This element applies to public companies only. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123466204&loc=SL6031898-161870 + Details
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