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Accrued Liabilities (Loss Reserve Activity) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2016 | Dec. 31, 2015 | Jun. 30, 2016
Loss reserve on contractual lease commitments, beginning of period | $ 9,772 | $ 2,464 | $ 2,464
Additions | 0 |  | 8,165
Payments | (168) |  | (1,025)
Loss reserve on contractual lease commitments, end of period | $ 9,604 |  | $ 9,604
Loss Reserve On Contractual Lease Commitments [Member] |  |  |
Additions |  | $ 8,165 |

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