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      ]
    },
    {
      "tag": "IncreaseDecreaseInInventories",
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      "label": "Change in inventories",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "The cash flow adjustment for the change in inventories during the period. A positive value under this concept means inventory grew and reduced operating cash flow.",
      "observations": [
        {
          "start": "2013-01-01",
          "end": "2013-12-31",
          "val": 1300000,
          "accn": "0001047469-14-001451",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -10918000,
          "accn": "0001047469-14-001451",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-01-01",
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          "val": -8226000,
          "accn": "0001047469-14-001451",
          "fy": 2013,
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          "filed": "2014-02-27",
          "frame": "CY2011",
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        },
        {
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          "fp": "FY",
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          "filed": "2013-02-27",
          "frame": "CY2010",
          "unit": "USD"
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        {
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          "val": 12720000,
          "accn": "0001047469-12-001714",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-28",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 13418000,
          "accn": "0001047469-11-001518",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-28",
          "frame": "CY2008",
          "unit": "USD"
        },
        {
          "start": "2007-01-01",
          "end": "2007-12-31",
          "val": 5336000,
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          "fy": 2009,
          "fp": "FY",
          "form": "10-K",
          "filed": "2010-03-01",
          "frame": "CY2007",
          "unit": "USD"
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    },
    {
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      "unitKind": "money",
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          "val": 25283000,
          "accn": "0001047469-14-001451",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-01-01",
          "end": "2012-12-31",
          "val": -1963000,
          "accn": "0001047469-14-001451",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2012",
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        },
        {
          "start": "2011-01-01",
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          "val": 2297000,
          "accn": "0001047469-14-001451",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-02-27",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-01-01",
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          "val": -2755000,
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          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-02-27",
          "frame": "CY2010",
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        },
        {
          "start": "2009-01-01",
          "end": "2009-12-31",
          "val": -5163000,
          "accn": "0001047469-12-001714",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-02-28",
          "frame": "CY2009",
          "unit": "USD"
        },
        {
          "start": "2008-01-01",
          "end": "2008-12-31",
          "val": 9635000,
          "accn": "0001047469-11-001518",
          "fy": 2010,
          "fp": "FY",
          "form": "10-K",
          "filed": "2011-02-28",
          "frame": "CY2008",
          "unit": "USD"
        },
        {
          "start": "2007-01-01",
          "end": "2007-12-31",
          "val": -2836000,
          "accn": "0001047469-10-001644",
          "fy": 2009,
          "fp": "FY",
          "form": "10-K",
          "filed": "2010-03-01",
          "frame": "CY2007",
          "unit": "USD"
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}
