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This element is used when state law does not recognize treasury stock.","units":{"USD":[{"start":"2015-01-01","end":"2015-12-31","val":6869000,"accn":"0000910322-16-000015","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-29"},{"start":"2015-01-01","end":"2015-12-31","val":6869000,"accn":"0000910322-17-000003","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2015"},{"start":"2016-01-01","end":"2016-12-31","val":1913000,"accn":"0000910322-17-000003","fy":2016,"fp":"FY","form":"10-K","filed":"2017-02-28","frame":"CY2016"}]}},"StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased":{"label":"Stock Repurchase Program, Number of Shares Authorized to be Repurchased","description":"The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase 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Time deposit includes, but is not limited to, certificate of deposit. 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