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v3.19.3.a.u2

Background and Business Description AMPS Exchange (Details) $ / shares in Units, $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2019 USD ($) shares | Dec. 31, 2018 USD ($) shares | Dec. 31, 2017 USD ($) | Aug. 03, 2018 USD ($) $ / shares shares | Jun. 30, 2018 USD ($) shares | May 01, 2013 $ / shares
Preferred Stock, Shares Issued | shares | 0 | 0 |  |  |  |
Stockholders' Equity Attributable to Noncontrolling Interest | $ 60,000 | $ 41,000 |  |  | $ 264,000 |
AMPS Liquidation Preference Value Per Share | $ / shares |  |  |  | $ 25,000 |  |
AMPS Exchange Surplus Notes Issued Per Share | $ / shares |  |  |  | $ 13,875 |  |
AMPS Exchange Shares Tendered | shares |  |  |  | 22,096 |  |
AMPS Exchange Cash Paid Per Share | $ / shares |  |  |  | $ 500 |  |
AMPS Exchange Warrants Issued Per Share | $ / shares |  |  |  | $ 37.3076 |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares |  |  |  |  |  | $ 16.67
AMPS Exchange Percent Acquired |  |  |  | 0.844 |  |
AMPS Exchange Shares Acquired | shares |  |  |  | 22,296 |  |
AMPS Exchange Aggregated Liquidation Preference |  |  |  | $ 557,000 |  |
AMPS Exchange Nominal Discount |  |  |  | 227,000 |  |
AMPS Exchange Nominal Discount at Fair Value |  |  |  | 253,000 |  |
AMPS Exchange Total Surplus Notes Issued |  |  |  | 213,000 |  |
AMPS Exchange Interest Included in Surplus Notes Issued |  |  |  | $ 98,000 |  |
AMPS Exchange Total Warrants Issued |  |  |  | 824,307 |  |
AMPS Exchange Cash Paid | 0 | 11,000 |  |  |  |
AMPS Exchange Loss Based on Carry Value | $ 0 | $ 82,000 | $ 0 |  |  |
Preferred Stock, Shares Outstanding | shares | 0 | 0 |  |  |  |
Ambac Assurance Corporation [Member] |  |  |  |  |  |
Preferred Stock, Shares Issued | shares | 1,386 |  |  |  |  |
Preferred Stock, Liquidation Preference, Value | $ 138,000 | $ 103,000 |  |  | $ 660,000 |
Preferred Stock, Shares Outstanding | shares | 5,501 | 4,115 |  |  | 26,411 |
AFG [Member] |  |  |  |  |  |
AMPS Exchange Aggregated Liquidation Preference |  |  |  | $ 35,000 |  |

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