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Shares issued include shares outstanding and shares held in the treasury.","units":{"shares":[{"end":"2010-12-31","val":1468800,"accn":"0001171843-11-002505","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":1468800,"accn":"0001171843-11-003492","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":1468800,"accn":"0001171843-12-001085","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-29","frame":"CY2010Q4I"},{"end":"2011-06-30","val":1468800,"accn":"0001171843-11-002505","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1468800,"accn":"0001171843-11-003492","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1468800,"accn":"0001171843-12-001085","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-29"},{"end":"2011-12-31","val":1468800,"accn":"0001171843-12-001866","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-15"},{"end":"2011-12-31","val":1468800,"accn":"0001144204-15-031404","fy":2012,"fp":"Q2","form":"10-Q","filed":"2015-05-15"},{"end":"2011-12-31","val":1468800,"accn":"0001144204-15-031408","fy":2012,"fp":"Q3","form":"10-Q","filed":"2015-05-15"},{"end":"2011-12-31","val":1468800,"accn":"0001144204-15-031420","fy":2012,"fp":"FY","form":"10-K","filed":"2015-05-15","frame":"CY2011Q4I"},{"end":"2012-03-31","val":1468800,"accn":"0001171843-12-001866","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-15","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1468800,"accn":"0001144204-15-031404","fy":2012,"fp":"Q2","form":"10-Q","filed":"2015-05-15","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1468800,"accn":"0001144204-15-031408","fy":2012,"fp":"Q3","form":"10-Q","filed":"2015-05-15","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1468800,"accn":"0001144204-15-031420","fy":2012,"fp":"FY","form":"10-K","filed":"2015-05-15"},{"end":"2012-12-31","val":1468800,"accn":"0001144204-15-031434","fy":2013,"fp":"Q1","form":"10-Q","filed":"2015-05-15"},{"end":"2012-12-31","val":1468800,"accn":"0001144204-15-031443","fy":2013,"fp":"Q2","form":"10-Q","filed":"2015-05-15"},{"end":"2012-12-31","val":1468800,"accn":"0001144204-15-031523","fy":2013,"fp":"Q3","form":"10-Q","filed":"2015-05-15"},{"end":"2012-12-31","val":1468800,"accn":"0001144204-15-031645","fy":2013,"fp":"FY","form":"10-K","filed":"2015-05-15","frame":"CY2012Q4I"},{"end":"2013-03-31","val":1468800,"accn":"0001144204-15-031434","fy":2013,"fp":"Q1","form":"10-Q","filed":"2015-05-15","frame":"CY2013Q1I"},{"end":"2013-06-30","val":1468800,"accn":"0001144204-15-031443","fy":2013,"fp":"Q2","form":"10-Q","filed":"2015-05-15","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1468800,"accn":"0001144204-15-031523","fy":2013,"fp":"Q3","form":"10-Q","filed":"2015-05-15","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1468800,"accn":"0001144204-15-031645","fy":2013,"fp":"FY","form":"10-K","filed":"2015-05-15"},{"end":"2013-12-31","val":1468800,"accn":"0001144204-15-031666","fy":2014,"fp":"Q1","form":"10-Q","filed":"2015-05-15"},{"end":"2013-12-31","val":1468800,"accn":"0001144204-15-031700","fy":2014,"fp":"Q2","form":"10-Q","filed":"2015-05-15"},{"end":"2013-12-31","val":1468800,"accn":"0001144204-15-031749","fy":2014,"fp":"Q3","form":"10-Q","filed":"2015-05-15"},{"end":"2013-12-31","val":1468800,"accn":"0001144204-15-031754","fy":2014,"fp":"FY","form":"10-K","filed":"2015-05-15","frame":"CY2013Q4I"},{"end":"2014-03-31","val":1468800,"accn":"0001144204-15-031666","fy":2014,"fp":"Q1","form":"10-Q","filed":"2015-05-15","frame":"CY2014Q1I"},{"end":"2014-06-30","val":1468800,"accn":"0001144204-15-031700","fy":2014,"fp":"Q2","form":"10-Q","filed":"2015-05-15","frame":"CY2014Q2I"},{"end":"2014-09-30","val":1468800,"accn":"0001144204-15-031749","fy":2014,"fp":"Q3","form":"10-Q","filed":"2015-05-15","frame":"CY2014Q3I"},{"end":"2014-12-31","val":1468800,"accn":"0001144204-15-031255","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-15"},{"end":"2014-12-31","val":1468800,"accn":"0001144204-15-031754","fy":2014,"fp":"FY","form":"10-K","filed":"2015-05-15"},{"end":"2014-12-31","val":1468800,"accn":"0001144204-15-049391","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-14"},{"end":"2014-12-31","val":1468800,"accn":"0001144204-15-066151","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-16","frame":"CY2014Q4I"},{"end":"2015-03-31","val":1468800,"accn":"0001144204-15-031255","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-15","frame":"CY2015Q1I"},{"end":"2015-06-30","val":1468800,"accn":"0001144204-15-049391","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-14","frame":"CY2015Q2I"},{"end":"2015-09-30","val":1468800,"accn":"0001144204-15-066151","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-16","frame":"CY2015Q3I"}]}},"CommonStockSharesOutstanding":{"label":"Common Stock, Shares, Outstanding","description":"Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.","units":{"shares":[{"end":"2010-12-31","val":1468800,"accn":"0001171843-11-002505","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":1468800,"accn":"0001171843-11-003492","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":1468800,"accn":"0001171843-12-001085","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-29","frame":"CY2010Q4I"},{"end":"2011-06-30","val":1468800,"accn":"0001171843-11-002505","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":1468800,"accn":"0001171843-11-003492","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":1468800,"accn":"0001171843-12-001085","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-29"},{"end":"2011-12-31","val":1468800,"accn":"0001171843-12-001866","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-15"},{"end":"2011-12-31","val":1468800,"accn":"0001144204-15-031404","fy":2012,"fp":"Q2","form":"10-Q","filed":"2015-05-15"},{"end":"2011-12-31","val":1468800,"accn":"0001144204-15-031408","fy":2012,"fp":"Q3","form":"10-Q","filed":"2015-05-15"},{"end":"2011-12-31","val":1468800,"accn":"0001144204-15-031420","fy":2012,"fp":"FY","form":"10-K","filed":"2015-05-15","frame":"CY2011Q4I"},{"end":"2012-03-31","val":1468800,"accn":"0001171843-12-001866","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-15","frame":"CY2012Q1I"},{"end":"2012-06-30","val":1468800,"accn":"0001144204-15-031404","fy":2012,"fp":"Q2","form":"10-Q","filed":"2015-05-15","frame":"CY2012Q2I"},{"end":"2012-09-30","val":1468800,"accn":"0001144204-15-031408","fy":2012,"fp":"Q3","form":"10-Q","filed":"2015-05-15","frame":"CY2012Q3I"},{"end":"2012-12-31","val":1468800,"accn":"0001144204-15-031420","fy":2012,"fp":"FY","form":"10-K","filed":"2015-05-15"},{"end":"2012-12-31","val":1468800,"accn":"0001144204-15-031434","fy":2013,"fp":"Q1","form":"10-Q","filed":"2015-05-15"},{"end":"2012-12-31","val":1468800,"accn":"0001144204-15-031443","fy":2013,"fp":"Q2","form":"10-Q","filed":"2015-05-15"},{"end":"2012-12-31","val":1468800,"accn":"0001144204-15-031523","fy":2013,"fp":"Q3","form":"10-Q","filed":"2015-05-15"},{"end":"2012-12-31","val":1468800,"accn":"0001144204-15-031645","fy":2013,"fp":"FY","form":"10-K","filed":"2015-05-15","frame":"CY2012Q4I"},{"end":"2013-03-31","val":1468800,"accn":"0001144204-15-031434","fy":2013,"fp":"Q1","form":"10-Q","filed":"2015-05-15","frame":"CY2013Q1I"},{"end":"2013-06-30","val":1468800,"accn":"0001144204-15-031443","fy":2013,"fp":"Q2","form":"10-Q","filed":"2015-05-15","frame":"CY2013Q2I"},{"end":"2013-09-30","val":1468800,"accn":"0001144204-15-031523","fy":2013,"fp":"Q3","form":"10-Q","filed":"2015-05-15","frame":"CY2013Q3I"},{"end":"2013-12-31","val":1468800,"accn":"0001144204-15-031645","fy":2013,"fp":"FY","form":"10-K","filed":"2015-05-15"},{"end":"2013-12-31","val":1468800,"accn":"0001144204-15-031666","fy":2014,"fp":"Q1","form":"10-Q","filed":"2015-05-15"},{"end":"2013-12-31","val":1468800,"accn":"0001144204-15-031700","fy":2014,"fp":"Q2","form":"10-Q","filed":"2015-05-15"},{"end":"2013-12-31","val":1468800,"accn":"0001144204-15-031749","fy":2014,"fp":"Q3","form":"10-Q","filed":"2015-05-15"},{"end":"2013-12-31","val":1468800,"accn":"0001144204-15-031754","fy":2014,"fp":"FY","form":"10-K","filed":"2015-05-15","frame":"CY2013Q4I"},{"end":"2014-03-31","val":1468800,"accn":"0001144204-15-031666","fy":2014,"fp":"Q1","form":"10-Q","filed":"2015-05-15","frame":"CY2014Q1I"},{"end":"2014-06-30","val":1468800,"accn":"0001144204-15-031700","fy":2014,"fp":"Q2","form":"10-Q","filed":"2015-05-15","frame":"CY2014Q2I"},{"end":"2014-09-30","val":1468800,"accn":"0001144204-15-031749","fy":2014,"fp":"Q3","form":"10-Q","filed":"2015-05-15","frame":"CY2014Q3I"},{"end":"2014-12-31","val":1468800,"accn":"0001144204-15-031255","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-15"},{"end":"2014-12-31","val":1468800,"accn":"0001144204-15-031754","fy":2014,"fp":"FY","form":"10-K","filed":"2015-05-15"},{"end":"2014-12-31","val":1468800,"accn":"0001144204-15-049391","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-14"},{"end":"2014-12-31","val":1468800,"accn":"0001144204-15-066151","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-16","frame":"CY2014Q4I"},{"end":"2015-03-31","val":1468800,"accn":"0001144204-15-031255","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-15","frame":"CY2015Q1I"},{"end":"2015-06-30","val":1468800,"accn":"0001144204-15-049391","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-14","frame":"CY2015Q2I"},{"end":"2015-09-30","val":1468800,"accn":"0001144204-15-066151","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-16","frame":"CY2015Q3I"}]}},"CommonStockValue":{"label":"Common Stock, Value, Issued","description":"Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.","units":{"USD":[{"end":"2010-12-31","val":13296691,"accn":"0001171843-11-002505","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"end":"2010-12-31","val":13296691,"accn":"0001171843-11-003492","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14"},{"end":"2010-12-31","val":13296691,"accn":"0001171843-12-001085","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-29","frame":"CY2010Q4I"},{"end":"2011-06-30","val":13296691,"accn":"0001171843-11-002505","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2011Q2I"},{"end":"2011-09-30","val":13296691,"accn":"0001171843-11-003492","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-14","frame":"CY2011Q3I"},{"end":"2011-12-31","val":13296691,"accn":"0001171843-12-001085","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-29"},{"end":"2011-12-31","val":13296691,"accn":"0001171843-12-001866","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-15"},{"end":"2011-12-31","val":13296691,"accn":"0001144204-15-031404","fy":2012,"fp":"Q2","form":"10-Q","filed":"2015-05-15"},{"end":"2011-12-31","val":13296691,"accn":"0001144204-15-031408","fy":2012,"fp":"Q3","form":"10-Q","filed":"2015-05-15"},{"end":"2011-12-31","val":13296691,"accn":"0001144204-15-031420","fy":2012,"fp":"FY","form":"10-K","filed":"2015-05-15","frame":"CY2011Q4I"},{"end":"2012-03-31","val":13296691,"accn":"0001171843-12-001866","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-15","frame":"CY2012Q1I"},{"end":"2012-06-30","val":13296691,"accn":"0001144204-15-031404","fy":2012,"fp":"Q2","form":"10-Q","filed":"2015-05-15","frame":"CY2012Q2I"},{"end":"2012-09-30","val":13296691,"accn":"0001144204-15-031408","fy":2012,"fp":"Q3","form":"10-Q","filed":"2015-05-15","frame":"CY2012Q3I"},{"end":"2012-12-31","val":13296691,"accn":"0001144204-15-031420","fy":2012,"fp":"FY","form":"10-K","filed":"2015-05-15"},{"end":"2012-12-31","val":13296691,"accn":"0001144204-15-031434","fy":2013,"fp":"Q1","form":"10-Q","filed":"2015-05-15"},{"end":"2012-12-31","val":13296691,"accn":"0001144204-15-031443","fy":2013,"fp":"Q2","form":"10-Q","filed":"2015-05-15"},{"end":"2012-12-31","val":13296691,"accn":"0001144204-15-031523","fy":2013,"fp":"Q3","form":"10-Q","filed":"2015-05-15"},{"end":"2012-12-31","val":13296691,"accn":"0001144204-15-031645","fy":2013,"fp":"FY","form":"10-K","filed":"2015-05-15","frame":"CY2012Q4I"},{"end":"2013-03-31","val":13296691,"accn":"0001144204-15-031434","fy":2013,"fp":"Q1","form":"10-Q","filed":"2015-05-15","frame":"CY2013Q1I"},{"end":"2013-06-30","val":13296691,"accn":"0001144204-15-031443","fy":2013,"fp":"Q2","form":"10-Q","filed":"2015-05-15","frame":"CY2013Q2I"},{"end":"2013-09-30","val":13296691,"accn":"0001144204-15-031523","fy":2013,"fp":"Q3","form":"10-Q","filed":"2015-05-15","frame":"CY2013Q3I"},{"end":"2013-12-31","val":13296691,"accn":"0001144204-15-031645","fy":2013,"fp":"FY","form":"10-K","filed":"2015-05-15"},{"end":"2013-12-31","val":13296691,"accn":"0001144204-15-031666","fy":2014,"fp":"Q1","form":"10-Q","filed":"2015-05-15"},{"end":"2013-12-31","val":13296691,"accn":"0001144204-15-031700","fy":2014,"fp":"Q2","form":"10-Q","filed":"2015-05-15"},{"end":"2013-12-31","val":13296691,"accn":"0001144204-15-031749","fy":2014,"fp":"Q3","form":"10-Q","filed":"2015-05-15"},{"end":"2013-12-31","val":13296691,"accn":"0001144204-15-031754","fy":2014,"fp":"FY","form":"10-K","filed":"2015-05-15","frame":"CY2013Q4I"},{"end":"2014-03-31","val":13296691,"accn":"0001144204-15-031666","fy":2014,"fp":"Q1","form":"10-Q","filed":"2015-05-15","frame":"CY2014Q1I"},{"end":"2014-06-30","val":13296691,"accn":"0001144204-15-031700","fy":2014,"fp":"Q2","form":"10-Q","filed":"2015-05-15","frame":"CY2014Q2I"},{"end":"2014-09-30","val":13296691,"accn":"0001144204-15-031749","fy":2014,"fp":"Q3","form":"10-Q","filed":"2015-05-15","frame":"CY2014Q3I"},{"end":"2014-12-31","val":13296691,"accn":"0001144204-15-031255","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-15"},{"end":"2014-12-31","val":13296691,"accn":"0001144204-15-031754","fy":2014,"fp":"FY","form":"10-K","filed":"2015-05-15"},{"end":"2014-12-31","val":13296691,"accn":"0001144204-15-049391","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-14"},{"end":"2014-12-31","val":13296691,"accn":"0001144204-15-066151","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-16","frame":"CY2014Q4I"},{"end":"2015-03-31","val":13296691,"accn":"0001144204-15-031255","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-15","frame":"CY2015Q1I"},{"end":"2015-06-30","val":13296691,"accn":"0001144204-15-049391","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-14","frame":"CY2015Q2I"},{"end":"2015-09-30","val":13296691,"accn":"0001144204-15-066151","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-16","frame":"CY2015Q3I"}]}},"ComprehensiveIncomeNetOfTax":{"label":"Comprehensive 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