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Segment Information Segment Information (Land-Related Charges by Segment) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Restructuring Cost and Reserve [Line Items] |  |  |  |
Production Related Impairments or Charges | $ 2,422 | $ 125,573 | $ 5,841 | $ 129,108
Northeast |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Production Related Impairments or Charges | 498 | 49,820 | 1,683 | 49,918
Southeast |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Production Related Impairments or Charges | 689 | 491 | 1,731 | 958
Florida |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Production Related Impairments or Charges | 226 | 8,602 | 409 | 8,754
Midwest |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Production Related Impairments or Charges | 372 | 7,567 | 1,118 | 8,095
Texas |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Production Related Impairments or Charges | 220 | 589 | 270 | 847
West |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Production Related Impairments or Charges | 148 | 54,409 | 361 | 56,441
Other homebuilding |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Production Related Impairments or Charges | $ 269 | $ 4,095 | $ 269 | $ 4,095

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