| Dec 31,
2015 | Dec 31,
2016 | Dec 31,
2017 | Dec 31,
2018 | Dec 31,
2019 | Dec 31,
2020 | Dec 31,
2021 | Dec 31,
2022 | Dec 31,
2023 | Dec 31,
2024 |
|---|
| Net income | - | - | -22 | -37 | -4 | 16 | 16 | 37 | 24 | 20 |
|---|
| Depreciation | - | - | - | - | - | - | - | - | 12 | 13 |
|---|
| Amortization expense | - | - | - | - | - | - | 4 | 4 | 4 | 4 |
|---|
| Stock-based compensation expense | 10 | 4 | 2 | 1 | 0 | 0 | 1 | 3 | 8 | 9 |
|---|
| Amortization of debt issuance costs | 6 | 2 | 2 | 2 | 2 | 3 | 2 | 2 | 2 | 2 |
|---|
| Loss on early extinguishment of debt | - | - | - | - | - | - | - | - | - | 9 |
|---|
| Deferred income taxes and other, net | - | - | - | - | - | - | - | - | - | 4 |
|---|
| Accounts receivable, net | 10 | -20 | 5 | 6 | 1 | 12 | 6 | 20 | -7 | 12 |
|---|
| Inventories | 4 | -6 | -4 | 2 | 10 | 6 | 33 | 11 | 2 | 2 |
|---|
| Prepaid expenses and other assets | 1 | 1 | -1 | 2 | 1 | -0 | 4 | 3 | -2 | 20 |
|---|
| Income taxes, net | -5 | 5 | -8 | 3 | 1 | -6 | 10 | 0 | -1 | 1 |
|---|
| Accounts payable | 2 | -6 | 5 | 2 | 1 | 2 | 7 | -0 | -11 | 3 |
|---|
| Accrued expenses and other liabilities | - | - | - | - | - | - | - | 2 | -8 | 22 |
|---|
| Deferred revenue and customer deposits | - | - | - | 1 | -0 | 1 | -1 | 2 | -3 | 1 |
|---|
| Cash provided by operating activities | 44 | 60 | 2 | - | - | - | - | 31 | 34 | 43 |
|---|
| Capital expenditures for plant, equipment and leasehold improvements, net | 19 | 14 | 9 | 6 | 4 | 7 | 10 | 18 | 6 | 9 |
|---|
| Other | - | - | - | - | 0 | - | 0 | 0 | 0 | 0 |
|---|
| Cash used in investing activities | -14 | -14 | -9 | - | - | -7 | -10 | -18 | -6 | -9 |
|---|
| Principal payments on 2026 Senior Notes | 171 | - | - | - | - | - | - | 25 | 17 | 268 |
|---|
| Proceeds from 2029 Senior Notes | - | - | - | - | - | - | 310 | - | - | 285 |
|---|
| Payments on finance lease obligations | - | - | - | - | 2 | 3 | 2 | 3 | 4 | 5 |
|---|
| Common stock repurchased | - | 6 | - | - | - | - | - | - | 0 | 9 |
|---|
| Debt issuance costs | 18 | - | - | - | - | 3 | 9 | 0 | - | 7 |
|---|
| Payment for debt early redemption premium | - | - | - | - | - | - | 3 | 2 | 0 | 6 |
|---|
| Taxes withheld and paid on stock-based compensation awards | - | - | 0 | - | - | - | - | - | - | 4 |
|---|
| Cash used in financing activities | -29 | -22 | -8 | -1 | -2 | 24 | -47 | -23 | -26 | -13 |
|---|
| Net increase in cash and cash equivalents | - | - | - | -3 | -2 | 39 | -37 | -10 | 1 | 21 |
|---|
| Cash paid (refunded) during the period for: Interest | - | - | 18 | 21 | 23 | 23 | 22 | 28 | 26 | 26 |
|---|
| Income Taxes Paid | - | - | - | - | - | - | 10 | 13 | 10 | 10 |
|---|
| Cash paid (refunded) during the period for: Income taxes refunded | - | - | - | - | - | - | 10 | 0 | 0 | 0 |
|---|
| Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | - | - | - | - | 9 | 3 | 7 | 1 | 3 | 1 |
|---|
| Right-of-Use Asset Obtained in Exchange for Finance Lease Liability | - | - | - | - | 6 | 2 | 2 | 9 | 11 | 10 |
|---|
| Capital Expenditures Incurred but Not yet Paid | - | - | - | 1 | 0 | 1 | 3 | 0 | 0 | 1 |
|---|