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v3.20.1

Basis of Presentation and Other Information - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Apr. 01, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Mar. 31, 2019 | Dec. 31, 2019 | Mar. 11, 2020
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |
Prepaid expenses and other |  | $ 60,923 | $ 60,527 |  | $ 60,527 |
Retained earnings |  | 443,290 | 430,010 |  | 430,010 |
Property, plant and equipment, net |  | 695,920 | 701,514 |  | 701,514 |
Deferred income taxes |  | 137,674 | 137,567 |  | 137,567 |
Depreciation expense |  | 36,911 |  | $ 41,179 |  |
Income tax expense |  | 4,292 |  | 4,210 |  |
Net income |  | $ 13,280 |  | $ 13,910 |  |
Subsequent Event | Affiliated Entity |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Negotiation period | 90 days |  |  |  |  |
Option to purchase assets, period | 60 days |  |  |  |  |
Purchase option, value of business percentage | 90.00% |  |  |  |  |
Option to purchase network, period | 60 days |  |  |  |  |
COVID-19 |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |
Percentage of stores temporarily closed |  |  |  |  |  | 40.00%
Correction of Error | Prior Period Errors |  |  |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |
Prepaid expenses and other |  |  | 2,700 |  | 2,700 |
Deferred tax liabilities, net |  |  | 700 |  | 700 |
Retained earnings |  |  | 2,000 |  | 2,000 |
Property, plant and equipment, net |  |  | 1,400 |  | 1,400 |
Deferred income taxes |  |  | 400 |  | 400 |
Depreciation expense |  |  | (1,400) |  | (1,400) |
Income tax expense |  |  | 400 |  | 400 |
Net income |  |  | $ 1,000 |  | $ 1,000 |
Increase (decrease) in earnings per share, basic (in dollars per share) |  |  | $ 0.02 |  | $ 0.02 |
Increase (decrease) in earnings per share, diluted (in dollars per share) |  |  | $ 0.02 |  | $ 0.02 |

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