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Fair Value Measurements (Fair Value Balance Sheet Long-Term Debt Grouping) (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2016 | Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Document Period End Date | Sep. 30, 2016 |
Parent |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt Instrument, Fair Value Disclosure |  | $ 2,309,725
Long-term Debt, Gross |  | 2,309,725
Long-term debt, net |  | 2,277,299
Parent | Carrying Value |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Long-term debt, net |  | 2,277,299
Parent | Estimate of Fair Value Measurement [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt Instrument, Fair Value Disclosure |  | 2,348,120
Subsidiary, Peninsula Gaming [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt Instrument, Fair Value Disclosure |  | 1,012,750
Long-term Debt, Gross |  | 1,012,750
Long-term debt, net |  | 992,250
Subsidiary, Peninsula Gaming [Member] | Carrying Value |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Long-term debt, net |  | 992,250
Subsidiary, Peninsula Gaming [Member] | Estimate of Fair Value Measurement [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt Instrument, Fair Value Disclosure |  | 1,018,131
Consolidated, Excluding Borgata [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt Instrument, Fair Value Disclosure | $ 3,041,635 | 3,322,475
Long-term Debt, Gross | 3,041,635 | 3,322,475
Long-term debt, net | 2,987,248 | 3,269,549
Consolidated, Excluding Borgata [Member] | Carrying Value |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Long-term debt, net | 2,987,248 | 3,269,549
Consolidated, Excluding Borgata [Member] | Estimate of Fair Value Measurement [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt Instrument, Fair Value Disclosure | 3,163,070 | 3,366,251
Level 1 | 9.00% Senior Notes Due 2020 | Fair Value, Measurements, Nonrecurring [Member] | Parent | Senior Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Long-term Debt, Gross |  | 350,000
Long-term debt, net |  | 342,956
Level 1 | 9.00% Senior Notes Due 2020 | Fair Value, Measurements, Nonrecurring [Member] | Parent | Senior Notes | Carrying Value |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Long-term debt, net |  | 342,956
Level 1 | 9.00% Senior Notes Due 2020 | Fair Value, Measurements, Nonrecurring [Member] | Parent | Senior Notes | Estimate of Fair Value Measurement [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt Instrument, Fair Value Disclosure |  | 372,750
Level 1 | 6.875 % Senior Notes Due 2023 | Fair Value, Measurements, Nonrecurring [Member] | Parent | Senior Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Long-term Debt, Gross | 750,000 | 750,000
Long-term debt, net | 738,352 | 737,066
Level 1 | 6.875 % Senior Notes Due 2023 | Fair Value, Measurements, Nonrecurring [Member] | Parent | Senior Notes | Carrying Value |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Long-term debt, net |  | 737,066
Level 1 | 6.875 % Senior Notes Due 2023 | Fair Value, Measurements, Nonrecurring [Member] | Parent | Senior Notes | Estimate of Fair Value Measurement [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt Instrument, Fair Value Disclosure | 811,875 | 772,500
Level 1 | 6.375% Senior Notes Due 2026 | Fair Value, Measurements, Nonrecurring [Member] | Parent | Senior Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Long-term Debt, Gross | 750,000 |
Long-term debt, net | 737,730 |
Level 1 | 6.375% Senior Notes Due 2026 | Fair Value, Measurements, Nonrecurring [Member] | Parent | Other | Estimate of Fair Value Measurement [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt Instrument, Fair Value Disclosure | 802,500 |
Level 2 | Bank Credit Facility [Member] | Fair Value, Measurements, Nonrecurring [Member] | Parent | Bank Credit Facility |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Long-term Debt, Gross | 1,541,000 | 1,209,725
Long-term debt, net | 1,510,531 | 1,197,277
Level 2 | Bank Credit Facility [Member] | Fair Value, Measurements, Nonrecurring [Member] | Parent | Bank Credit Facility | Carrying Value |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Long-term debt, net |  | 1,197,277
Level 2 | Bank Credit Facility [Member] | Fair Value, Measurements, Nonrecurring [Member] | Parent | Bank Credit Facility | Estimate of Fair Value Measurement [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt Instrument, Fair Value Disclosure | 1,548,060 | 1,202,870
Level 2 | Bank Credit Facility [Member] | Fair Value, Measurements, Nonrecurring [Member] | Subsidiary, Peninsula Gaming [Member] | Bank Credit Facility |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Long-term Debt, Gross |  | 662,750
Long-term debt, net |  | 648,607
Level 2 | Bank Credit Facility [Member] | Fair Value, Measurements, Nonrecurring [Member] | Subsidiary, Peninsula Gaming [Member] | Bank Credit Facility | Estimate of Fair Value Measurement [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt Instrument, Fair Value Disclosure |  | 661,131
Level 2 | Peninsula Senior Notes due 2018 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Subsidiary, Peninsula Gaming [Member] | Senior Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Long-term Debt, Gross |  | 350,000
Long-term debt, net |  | 343,643
Level 2 | Peninsula Senior Notes due 2018 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Subsidiary, Peninsula Gaming [Member] | Senior Notes | Estimate of Fair Value Measurement [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt Instrument, Fair Value Disclosure |  | $ 357,000
Level 3 | Other Debt [Member] | Fair Value, Measurements, Nonrecurring [Member] | Parent | Other Debt Obligations [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Long-term Debt, Gross | 635 |
Long-term debt, net | 635 |
Level 3 | Other Debt [Member] | Fair Value, Measurements, Nonrecurring [Member] | Parent | Other Debt Obligations [Member] | Estimate of Fair Value Measurement [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Debt Instrument, Fair Value Disclosure | $ 635 |

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