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Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at beginning of period | $ 125,054 | $ 94,455 | $ 136,576
Charged to expense - additions | 48 | 33,238 | 2,124
Release of valuation allowance - deductions | (2,004) | (2,639) | (44,245)
Charged to expense - deductions | 0 | 0 | 0
Balance at end of period | 123,098 | 125,054 | 94,455
State Operating Loss Carry-Forwards |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at beginning of period | 81,202 | 47,964 | 61,560
Charged to expense - additions | 0 | 33,238 | 0
Release of valuation allowance - deductions | (2,004) | 0 | (13,596)
Charged to expense - deductions | 0 | 0 | 0
Balance at end of period | 79,198 | 81,202 | 47,964
Deferred Deductible Temporary Differences |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at beginning of period |  | 0 | 9,088
Charged to expense - additions |  |  | 0
Release of valuation allowance - deductions |  |  | (9,088)
Charged to expense - deductions |  |  | 0
Balance at end of period |  |  | 0
Charitable Contributions |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at beginning of period | 658 | 3,297 | 3,156
Charged to expense - additions | 48 | 0 | 141
Release of valuation allowance - deductions | 0 | (2,639) | 0
Charged to expense - deductions | 0 | 0 | 0
Balance at end of period | 706 | 658 | 3,297
162(m) Officers Compensation |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at beginning of period |  | 0 | 5,957
Charged to expense - additions |  |  | 0
Release of valuation allowance - deductions |  |  | (5,957)
Charged to expense - deductions |  |  | 0
Balance at end of period |  |  | 0
AMT Credit |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at beginning of period |  | 0 | 12,413
Charged to expense - additions |  |  | 1,983
Release of valuation allowance - deductions |  |  | (14,396)
Charged to expense - deductions |  |  | 0
Balance at end of period |  |  | 0
Foreign Tax Credits |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at beginning of period | 43,194 | 43,194 | 44,402
Charged to expense - additions | 0 | 0 | 0
Release of valuation allowance - deductions | 0 | 0 | (1,208)
Charged to expense - deductions | 0 | 0 | 0
Balance at end of period | $ 43,194 | $ 43,194 | $ 43,194

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- Definition Amount of increase (decrease) in valuation and qualifying accounts and reserves from adjustment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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