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v3.20.2

Debt - Additional Information (Detail) - USD ($) |  |  | 3 Months Ended | 9 Months Ended | 12 Months Ended | 43 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 15, 2020 | Aug. 06, 2019 | Jun. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2016 | Aug. 05, 2019 | Dec. 31, 2019 | Sep. 05, 2019 | Aug. 07, 2019 | Mar. 27, 2019
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loss on debt extinguishment |  |  |  |  | $ 28,500,000 | $ 20,200,000 |  |  |  |  |  |
Proceeds from capped call transactions |  |  |  |  | 0 | $ 7,200,000 |  |  |  |  |  |
The Notes | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount redeemed in full redemption | $ 440,000,000.0 |  |  |  |  |  |  |  |  |  |  |
Interest rate | 10.75% |  |  |  |  |  |  |  | 10.75% |  |  |
Redemption price, percent of principal amount of notes redeemed | 105.375% |  |  |  |  |  |  |  |  |  |  |
Redemption price paid | $ 487,300,000 |  |  |  |  |  |  |  |  |  |  |
Call premium | 23,650,000 |  |  |  |  |  |  |  |  |  |  |
Accrued interest | $ 23,650,000 |  |  |  |  |  |  |  |  |  |  |
Loss on debt extinguishment |  |  | $ 28,500,000 |  |  |  |  |  |  |  |  |
Premium |  |  | 23,650,000 |  |  |  |  |  |  |  |  |
Write off of unamortized discount and fees related to issuance of the Notes |  |  | $ 4,800,000 |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  |  | $ 440,000,000.0 |  |  |
Aggregate principal amount of convertible debt outstanding |  |  |  |  | $ 0 |  |  |  | 434,500,000 |  |  |
2021 Notes |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  | $ 1,000 |  |  |  |  |
2021 Notes | Senior Notes |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  | 5.50% |  | 5.50% |  |  |  |  |
Aggregate principal amount |  |  |  |  | $ 84,200,000 |  | $ 213,500,000 |  | 84,200,000 |  |  |
Effective interest rate |  |  |  |  |  |  | 9.50% |  |  |  |  |
Debt conversion rate (in shares) |  |  |  |  |  |  | 102.4249 |  |  |  |  |
Total number of convertible shares (in shares) |  |  |  |  |  |  | 21,867,716 |  |  |  |  |
Conversion price (in dollars per share) |  |  |  |  | $ 12.75 |  | $ 9.76 |  |  |  |  |
Payments for capped call transactions |  |  |  |  |  |  | $ 27,300,000 |  |  |  |  |
Conversion premium percentage |  |  |  |  | 60.00% |  | 22.50% |  |  |  |  |
Aggregate shares of common stock issued pursuant to exchange agreements (in shares) |  | 10,593,930 |  |  |  |  |  |  |  |  |  |
Cash paid in exchange for outstanding convertible debt |  | $ 59,400,000 |  |  |  |  |  |  |  |  |  |
Accrued and unpaid interest |  |  |  |  |  |  |  | $ 3,100,000 |  |  |  |
Aggregate principal amount of outstanding convertible debt included in debt conversion |  | 129,300,000 |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of convertible debt outstanding |  | 84,200,000 |  |  | $ 82,700,000 |  |  |  | $ 80,000,000.0 |  |  |
Proceeds from capped call transactions |  | $ 7,200,000 |  |  |  |  |  |  |  |  |  |
Number of shares of common stock covered by remaining capped call transactions (in shares) |  |  |  |  |  |  |  |  |  |  | 8,600,000 |
Charge recognized as a result of exchange |  |  |  | $ 20,200,000 |  |  |  |  |  |  |  |
Credit Agreement | Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  | 145,000,000.0 |  |  |  |  |  |  |
Accordion feature increase limit |  |  |  |  | 150,000,000.0 |  |  |  |  |  |  |
Borrowings outstanding |  |  |  |  | 0 |  |  |  |  |  |  |
Available borrowings |  |  |  |  | $ 71,200,000 |  |  |  |  |  |  |
Springing maturity date, period prior to maturity date of convertible debt |  |  |  |  | 91 days |  |  |  |  |  |  |
Credit Agreement | Letter of Credit |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  | $ 30,000,000.0 |  |  |  |  |  |  |
Letters of credit outstanding |  |  |  |  | $ 5,800,000 |  |  |  |  |  |  |
Credit Agreement | Line of Credit | Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Requirement to maintain minimum fixed charge coverage ratio, availability threshold, percent of lenders' commitments under facility |  |  |  |  | 10.00% |  |  |  |  |  |  |
Requirement to maintain minimum fixed charge coverage ratio, availability threshold |  |  |  |  | $ 15,000,000.0 |  |  |  |  |  |  |
Amount of aggregate default under other debt that would trigger event of default |  |  |  |  | 50,000,000.0 |  |  |  |  |  |  |
Installment Payment Agreement |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  |  |  |  |  | 7.00%
Aggregate principal amount |  |  |  |  |  |  |  |  |  |  |  | $ 27,700,000
Amount reported in current maturities of long-term debt |  |  |  |  | 6,300,000 |  |  |  |  |  |  |
Software Licenses Financing Agreement |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  |  |  | 5.47% |  |
Aggregate principal amount |  |  |  |  |  |  |  |  |  | $ 19,300,000 |  |
Amount reported in current maturities of long-term debt |  |  |  |  | $ 3,600,000 |  |  |  |  |  |  |

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- Definition Debt Instrument, Debt Default, Triggering Event Threshold, Amount + References No definition available. + Details
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- Definition Gain (Loss) On Exchange Of Debt + References No definition available. + Details
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- Definition Line of Credit Facility, Accordion Feature, Increase Limit + References No definition available. + Details
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- Definition Line of Credit Facility, Springing Maturity Date, Period Prior to Maturity Date of Convertible Debt + References No definition available. + Details
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- Definition Payments for Capped Call Transactions + References No definition available. + Details
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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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- 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=120520924&loc=SL6031898-161870 + Details
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- Definition The number of equity instruments that the holder of the debt instrument would receive if the debt was converted to equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21521-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644 Reference 4: 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(a)(5)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
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- Definition Increase for accrued, but unpaid interest on the debt instrument for the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6036836-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399 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(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: 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(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Percentage of principal amount of debt redeemed. + References No definition available. + Details
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- Definition Fair value amount of debt instrument that was repurchased. + References No definition available. + Details
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- Definition Face (par) amount of the original debt instrument that was repurchased. + References No definition available. + Details
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- Definition Gross amount of debt extinguished. + References No definition available. + Details
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- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=117329964&loc=d3e12355-112629 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=117329964&loc=d3e12317-112629 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details
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- Definition Reflects the difference between the fair value of payments made to legally extinguish a debt and its carrying value at that time. This item excludes the write-off of amounts previously capitalized as debt issuance costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=117329964&loc=d3e12317-112629 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=117329964&loc=d3e12355-112629 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: 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 2: 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 Reference 3: 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 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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