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Exit Costs","description":"Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Includes, but is not limited to, one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and termination benefits associated with an ongoing benefit arrangement. Excludes expenses associated with special or contractual termination benefits, a discontinued operation or an asset retirement obligation.","units":{"USD":[{"start":"2011-07-01","end":"2011-09-30","val":618000,"accn":"0001437749-14-005565","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-31"},{"start":"2011-07-01","end":"2011-09-30","val":618000,"accn":"0001437749-15-004920","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-12","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":288000,"accn":"0001437749-14-005565","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-31","frame":"CY2011"},{"start":"2012-07-01","end":"2012-09-30","val":950000,"accn":"0001437749-14-005565","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-31","frame":"CY2012Q3"}]}},"CashAndCashEquivalentsAtCarryingValue":{"label":"Cash and Cash Equivalents, at Carrying Value","description":"Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. 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changes.","units":{"USD":[{"start":"2009-01-01","end":"2009-12-31","val":-73000,"accn":"0001437749-12-002311","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-14","frame":"CY2009"},{"start":"2010-01-01","end":"2010-06-30","val":711000,"accn":"0001437749-11-005267","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-01"},{"start":"2010-01-01","end":"2010-09-30","val":-393000,"accn":"0001437749-11-008437","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-10"},{"start":"2010-01-01","end":"2010-12-31","val":151000,"accn":"0001437749-12-002311","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-14"},{"start":"2010-01-01","end":"2010-12-31","val":151000,"accn":"0001437749-13-003018","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-15","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":643000,"accn":"0001437749-12-004543","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":1740000,"accn":"0001437749-11-005267","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-01"},{"start":"2011-01-01","end":"2011-06-30","val":1740000,"accn":"0001437749-12-007623","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-02"},{"start":"2011-01-01","end":"2011-09-30","val":3288000,"accn":"0001437749-11-008437","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-10"},{"start":"2011-01-01","end":"2011-09-30","val":3288000,"accn":"0001437749-12-011015","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2011-01-01","end":"2011-12-31","val":3772000,"accn":"0001437749-12-002311","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-14"},{"start":"2011-01-01","end":"2011-12-31","val":3772000,"accn":"0001437749-13-003018","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-15"},{"start":"2011-01-01","end":"2011-12-31","val":3772000,"accn":"0001437749-14-005565","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-31","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":-678000,"accn":"0001437749-12-004543","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-04"},{"start":"2012-01-01","end":"2012-03-31","val":-678000,"accn":"0001437749-13-005065","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-01","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":1830000,"accn":"0001437749-12-007623","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-02"},{"start":"2012-01-01","end":"2012-06-30","val":1830000,"accn":"0001437749-13-009810","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-02"},{"start":"2012-01-01","end":"2012-09-30","val":40000,"accn":"0001437749-12-011015","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"start":"2012-01-01","end":"2012-09-30","val":40000,"accn":"0001437749-13-013706","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-10-31"},{"start":"2012-01-01","end":"2012-12-31","val":1662000,"accn":"0001437749-13-003018","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-15"},{"start":"2012-01-01","end":"2012-12-31","val":1662000,"accn":"0001437749-14-005565","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-31"},{"start":"2012-01-01","end":"2012-12-31","val":1662000,"accn":"0001437749-15-004920","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-12","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":329000,"accn":"0001437749-13-005065","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-01"},{"start":"2013-01-01","end":"2013-03-31","val":329000,"accn":"0001437749-14-007794","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-02","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":2173000,"accn":"0001437749-13-009810","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-02"},{"start":"2013-01-01","end":"2013-06-30","val":2173000,"accn":"0001437749-14-014157","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-04"},{"start":"2013-01-01","end":"2013-09-30","val":1011000,"accn":"0001437749-13-013706","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-10-31"},{"start":"2013-01-01","end":"2013-09-30","val":1011000,"accn":"0001437749-14-019251","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-31"},{"start":"2013-01-01","end":"2013-12-31","val":-2108000,"accn":"0001437749-14-005565","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-31"},{"start":"2013-01-01","end":"2013-12-31","val":-2108000,"accn":"0001437749-15-004920","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-12"},{"start":"2013-01-01","end":"2013-12-31","val":-2108000,"accn":"0001437749-16-026600","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-03","frame":"CY2013"},{"start":"2014-01-01","end":"2014-03-31","val":-936000,"accn":"0001437749-14-007794","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-02"},{"start":"2014-01-01","end":"2014-03-31","val":-936000,"accn":"0001437749-15-009073","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-06","frame":"CY2014Q1"},{"start":"2014-01-01","end":"2014-06-30","val":36139000,"accn":"0001437749-14-014157","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-04"},{"start":"2014-01-01","end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accn":"0001437749-19-007341","fy":2018,"fp":"FY","form":"10-K","filed":"2019-04-16","frame":"CY2018"}]}},"CashCashEquivalentsAndShortTermInvestments":{"label":"Cash, Cash Equivalents, and Short-term Investments","description":"Cash includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the customer may deposit additional funds at any time and effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid Investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Short-term investments, exclusive of cash equivalents, generally consist of marketable securities intended to be sold within one year (or the normal operating cycle if longer) and may include trading securities, available-for-sale securities, or held-to-maturity securities (if maturing within one year), as applicable.","units":{"USD":[{"end":"2018-09-30","val":4000000,"accn":"0001437749-18-020097","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-08","frame":"CY2018Q3I"},{"end":"2018-12-31","val":2600000,"accn":"0001437749-19-007341","fy":2018,"fp":"FY","form":"10-K","filed":"2019-04-16","frame":"CY2018Q4I"}]}},"CertificatesOfDepositAtCarryingValue":{"label":"Certificates of Deposit, at Carrying Value","description":"A savings certificate entitling the Entity (that is, bearer) to receive interest at an established maturity date, based upon a fixed interest rate. A certificate of deposit may be issued in any denomination. Certificates of deposit are generally issued by commercial banks and, therefore, insured by the FDIC (up to the prescribed limit). Certificates of deposit generally restrict holders from withdrawing funds on demand without the incurrence of penalties. Generally, only certificates of deposit with original maturities of three months or less qualify as cash equivalents. Original maturity means original maturity to the entity holding the investment. As a related example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.","units":{"USD":[{"end":"2011-12-31","val":176000,"accn":"0001437749-12-007623","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-02"},{"end":"2011-12-31","val":176000,"accn":"0001437749-12-011015","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06"},{"end":"2011-12-31","val":176000,"accn":"0001437749-13-003018","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-15","frame":"CY2011Q4I"},{"end":"2012-06-30","val":176000,"accn":"0001437749-12-007623","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-02","frame":"CY2012Q2I"},{"end":"2012-09-30","val":177000,"accn":"0001437749-12-011015","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-06","frame":"CY2012Q3I"},{"end":"2012-12-31","val":177000,"accn":"0001437749-13-003018","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-15"},{"end":"2012-12-31","val":177000,"accn":"0001437749-13-005065","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-01"},{"end":"2012-12-31","val":177000,"accn":"0001437749-13-009810","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-02"},{"end":"2012-12-31","val":177000,"accn":"0001437749-13-013706","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-10-31"},{"end":"2012-12-31","val":177000,"accn":"0001437749-14-005565","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-31","frame":"CY2012Q4I"},{"end":"2013-03-31","val":177000,"accn":"0001437749-13-005065","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-01","frame":"CY2013Q1I"},{"end":"2013-06-30","val":177000,"accn":"0001437749-13-009810","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-02","frame":"CY2013Q2I"},{"end":"2013-09-30","val":177000,"accn":"0001437749-13-013706","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-10-31","frame":"CY2013Q3I"},{"end":"2013-12-31","val":177000,"accn":"0001437749-14-005565","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-31"},{"end":"2013-12-31","val":177000,"accn":"0001437749-15-004920","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-12","frame":"CY2013Q4I"},{"end":"2014-12-31","val":178000,"accn":"0001437749-15-004920","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-12","frame":"CY2014Q4I"}]}},"ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights":{"label":"Class of Warrant or Right, Exercise Price of Warrants or Rights (Deprecated 2014-01-31)","description":"Exercise price per share or per unit of warrants or rights outstanding.","units":{"USD/item":[{"end":"2009-12-31","val":2.29,"accn":"0001437749-14-005565","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-31","frame":"CY2009Q4I"},{"end":"2009-12-31","val":2.29,"accn":"0001437749-13-003018","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-15"}]}},"ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights":{"label":"Class of Warrant or Right, Number of Securities Called by Warrants or Rights","description":"Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.","units":{"shares":[{"end":"2009-12-31","val":120000,"accn":"0001437749-14-005565","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-31","frame":"CY2009Q4I"},{"end":"2009-12-31","val":120000,"accn":"0001437749-13-003018","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-15"}]}},"CommonStockCapitalSharesReservedForFutureIssuance":{"label":"Common Stock, Capital Shares Reserved for Future Issuance","description":"Aggregate number of common shares reserved for future 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Excludes capital lease obligations.","units":{"USD":[{"end":"2016-12-31","val":712000,"accn":"0001437749-17-004431","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-14"},{"end":"2016-12-31","val":712000,"accn":"0001437749-17-008444","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-09"},{"end":"2016-12-31","val":712000,"accn":"0001437749-17-013576","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-02"},{"end":"2016-12-31","val":712000,"accn":"0001437749-17-018880","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-09"},{"end":"2016-12-31","val":712000,"accn":"0001437749-18-005245","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-22","frame":"CY2016Q4I"},{"end":"2017-03-31","val":712000,"accn":"0001437749-17-008444","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-09","frame":"CY2017Q1I"},{"end":"2017-06-30","val":703000,"accn":"0001437749-17-013576","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-02","frame":"CY2017Q2I"},{"end":"2017-09-30","val":689000,"accn":"0001437749-17-018880","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-09","frame":"CY2017Q3I"},{"end":"2017-12-31","val":779000,"accn":"0001437749-18-005245","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-22"},{"end":"2017-12-31","val":779000,"accn":"0001437749-18-009436","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-10"},{"end":"2017-12-31","val":779000,"accn":"0001437749-18-015107","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-09"},{"end":"2017-12-31","val":779000,"accn":"0001437749-18-020097","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-08"},{"end":"2017-12-31","val":779000,"accn":"0001437749-19-007341","fy":2018,"fp":"FY","form":"10-K","filed":"2019-04-16","frame":"CY2017Q4I"},{"end":"2018-03-31","val":4584000,"accn":"0001437749-18-009436","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-10","frame":"CY2018Q1I"},{"end":"2018-06-30","val":928000,"accn":"0001437749-18-015107","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-09","frame":"CY2018Q2I"},{"end":"2018-09-30","val":1022000,"accn":"0001437749-18-020097","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-08","frame":"CY2018Q3I"},{"end":"2018-12-31","val":33115000,"accn":"0001437749-19-007341","fy":2018,"fp":"FY","form":"10-K","filed":"2019-04-16","frame":"CY2018Q4I"}]}},"LongTermDebtFairValue":{"label":"Long-term Debt, Fair Value","description":"The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.","units":{"USD":[{"end":"2016-12-31","val":26813000,"accn":"0001437749-17-004431","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-14","frame":"CY2016Q4I"},{"end":"2017-03-31","val":32875000,"accn":"0001437749-17-008444","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-09","frame":"CY2017Q1I"},{"end":"2017-06-30","val":37188000,"accn":"0001437749-17-013576","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-02","frame":"CY2017Q2I"},{"end":"2017-09-30","val":38000000,"accn":"0001437749-17-018880","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-09","frame":"CY2017Q3I"},{"end":"2017-12-31","val":37813000,"accn":"0001437749-18-005245","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-22","frame":"CY2017Q4I"},{"end":"2018-03-31","val":37625000,"accn":"0001437749-18-009436","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-10","frame":"CY2018Q1I"},{"end":"2018-06-30","val":33687000,"accn":"0001437749-18-015107","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-09","frame":"CY2018Q2I"},{"end":"2018-09-30","val":33500000,"accn":"0001437749-18-020097","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-08","frame":"CY2018Q3I"},{"end":"2018-12-31","val":33219000,"accn":"0001437749-19-007341","fy":2018,"fp":"FY","form":"10-K","filed":"2019-04-16","frame":"CY2018Q4I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths":{"label":"Long-Term Debt, Maturity, Year One","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2012-12-31","val":165000,"accn":"0001437749-13-003018","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-15","frame":"CY2012Q4I"},{"end":"2013-12-31","val":3500000,"accn":"0001437749-14-005565","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-31","frame":"CY2013Q4I"},{"end":"2016-12-31","val":750000,"accn":"0001437749-17-004431","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-14","frame":"CY2016Q4I"},{"end":"2017-12-31","val":844000,"accn":"0001437749-18-005245","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-22","frame":"CY2017Q4I"},{"end":"2018-12-31","val":33219000,"accn":"0001437749-19-007341","fy":2018,"fp":"FY","form":"10-K","filed":"2019-04-16","frame":"CY2018Q4I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive":{"label":"Long-Term Debt, Maturity, Year Five","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2016-12-31","val":22875000,"accn":"0001437749-17-004431","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-14","frame":"CY2016Q4I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour":{"label":"Long-Term Debt, Maturity, Year Four","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2016-12-31","val":1219000,"accn":"0001437749-17-004431","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-14","frame":"CY2016Q4I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree":{"label":"Long-Term Debt, Maturity, Year Three","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2012-12-31","val":30000,"accn":"0001437749-13-003018","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-15","frame":"CY2012Q4I"},{"end":"2016-12-31","val":1125000,"accn":"0001437749-17-004431","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-14","frame":"CY2016Q4I"}]}},"LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo":{"label":"Long-Term Debt, Maturity, Year Two","description":"Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).","units":{"USD":[{"end":"2012-12-31","val":175000,"accn":"0001437749-13-003018","fy":2012,"fp":"FY","form":"10-K","filed":"2013-03-15","frame":"CY2012Q4I"},{"end":"2016-12-31","val":844000,"accn":"0001437749-17-004431","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-14","frame":"CY2016Q4I"},{"end":"2017-12-31","val":36969000,"accn":"0001437749-18-005245","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-22","frame":"CY2017Q4I"}]}},"LongTermDebtNoncurrent":{"label":"Long-term Debt, Excluding Current Maturities","description":"Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.","units":{"USD":[{"end":"2016-12-31","val":25921000,"accn":"0001437749-17-004431","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-14"},{"end":"2016-12-31","val":25921000,"accn":"0001437749-17-008444","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-09"},{"end":"2016-12-31","val":25921000,"accn":"0001437749-17-013576","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-02"},{"end":"2016-12-31","val":25921000,"accn":"0001437749-17-018880","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-09"},{"end":"2016-12-31","val":25921000,"accn":"0001437749-18-005245","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-22","frame":"CY2016Q4I"},{"end":"2017-03-31","val":31955000,"accn":"0001437749-17-008444","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-09","frame":"CY2017Q1I"},{"end":"2017-06-30","val":36380000,"accn":"0001437749-17-013576","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-02","frame":"CY2017Q2I"},{"end":"2017-09-30","val":37190000,"accn":"0001437749-17-018880","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-09","frame":"CY2017Q3I"},{"end":"2017-12-31","val":36921000,"accn":"0001437749-18-005245","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-22"},{"end":"2017-12-31","val":36921000,"accn":"0001437749-18-009436","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-10"},{"end":"2017-12-31","val":36921000,"accn":"0001437749-18-015107","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-09"},{"end":"2017-12-31","val":36921000,"accn":"0001437749-18-020097","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-08"},{"end":"2017-12-31","val":36921000,"accn":"0001437749-19-007341","fy":2018,"fp":"FY","form":"10-K","filed":"2019-04-16","frame":"CY2017Q4I"},{"end":"2018-03-31","val":32860000,"accn":"0001437749-18-009436","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-10","frame":"CY2018Q1I"},{"end":"2018-06-30","val":32604000,"accn":"0001437749-18-015107","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-09","frame":"CY2018Q2I"},{"end":"2018-09-30","val":32349000,"accn":"0001437749-18-020097","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-08","frame":"CY2018Q3I"}]}},"LongTermLineOfCredit":{"label":"Long-term Line of Credit, Noncurrent","description":"The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.","units":{"USD":[{"end":"2016-03-31","val":5000000,"accn":"0001437749-16-030933","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-05","frame":"CY2016Q1I"},{"end":"2016-06-30","val":18000000,"accn":"0001437749-16-037280","fy":2016,"fp":"Q2","form":"10-Q/A","filed":"2016-08-12","frame":"CY2016Q2I"},{"end":"2016-09-30","val":25000000,"accn":"0001437749-16-040762","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-01","frame":"CY2016Q3I"}]}},"LongTermNotesPayable":{"label":"Notes Payable, Noncurrent","description":"Carrying value as of the balance sheet date of notes payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current 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