Long-Term Debt - 6.75% Senior Secured Notes - Additional Information (Detail) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|
Mar. 31, 2019 |
Mar. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2018 |
May 19, 2017 |
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| Debt Instrument [Line Items] | |||||
| Interest payable, current | $ 5,238 | $ 1,375 | |||
| Debt related commitment fees and debt issuance costs | $ 6,300 | ||||
| Debt Instrument Redemption Period Two [Member] | |||||
| Debt Instrument [Line Items] | |||||
| Debt instrument, redemption, percentage of aggregate principal amount | 35.00% | ||||
| Debt instrument, redemption price, percentage of principal amount redeemed | 106.75% | ||||
| Debt Instrument Redemption Period Three [Member] | |||||
| Debt Instrument [Line Items] | |||||
| Debt instrument, redemption, percentage of aggregate principal amount | 10.00% | ||||
| Debt instrument, redemption price, percentage of principal amount redeemed | 103.00% | ||||
| Debt Instrument Redemption Period One [Member] | |||||
| Debt Instrument [Line Items] | |||||
| Debt instrument, redemption price, percentage of principal amount redeemed | 100.00% | ||||
| 6.75% Senior Secured Notes [Member] | |||||
| Debt Instrument [Line Items] | |||||
| Debt instrument, interest rate, stated percentage | 6.75% | 6.75% | |||
| Debt instrument, debt default, description of violation or event of default | The Indenture provides for the following events of default (each, an “Event of Default”): (i) default in payment of principal or premium on the Notes at maturity, upon repurchase, acceleration, optional redemption or otherwise; (ii) default for 30 days in payment of interest on the Notes; (iii) the failure by us or certain restricted subsidiaries to comply with other agreements in the Indenture or the Notes, in certain cases subject to notice and lapse of time; (iv) the failure of any guarantee by certain significant Subsidiary Guarantors to be in full force and effect and enforceable in accordance with its terms, subject to notice and lapse of time; (v) certain accelerations (including failure to pay within any grace period) of other indebtedness of ours or any restricted subsidiary if the amount accelerated (or so unpaid) is at least $15 million; (vi) certain judgments for the payment of money in excess of $15 million; (vii) certain events of bankruptcy or insolvency with respect to us or any significant subsidiary; and (vii) certain defaults with respect to any collateral having a fair market value in excess of $15 million. | ||||
| Debt instrument debt default percentage | 25.00% | ||||
| Interest expense, debt | $ 15,700 | ||||
| Interest payable, current | 5,200 | ||||
| Debt related commitment fees and debt issuance costs | $ 200 | $ 200 | |||
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- Definition Percentage of outstanding long-term debt or borrowing associated with any securities or credit agreement for which there has been a default in principal, interest, sinking fund, or redemption provisions, or any breach of covenant that existed at the end of the period and subsequently has not been cured. No definition available.
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- Definition Debt Instrument redemption percentage of aggregate principal amount. No definition available.
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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. No definition available.
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- Definition Percentage of principal amount of debt redeemed. No definition available.
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- Definition Represents the charge against earnings during the period for commitment fees and debt issuance expenses. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Discussion of the facts and amounts pertaining to each failure to comply with an affirmative or negative covenant of a long-term debt instrument, including violating payment terms or an inability to meet certain minimum financial requirements or achieve or maintain certain financial ratios. The discussion would generally be expected to also include whether or not the failure can and will be overcome and a description of the terms of any waivers, including the amount of the waiver and the period of time covered by the waiver, and if reclassification of long-term debt to current has been made in the current balance sheet. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of the cost of borrowed funds accounted for as interest expense for debt. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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