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Revenue from Contracts with Customers (Capitalized Contract Cost) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
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Jun. 30, 2019 | Jun. 30, 2019 | Jan. 01, 2019
Revenue from Contract with Customer [Abstract] |  |  |
Contract costs capitalized during the period |  | $ 19,270 |
Costs amortized during the period | $ 13,600 | (25,496) |
Change in capitalized contract cost, other |  | 119 |
Balance of costs to obtain a contract | $ 15,204 | $ 15,204 | $ 21,311

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- Definition Change in capitalized contract cost, other + References No definition available. + Details
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- Definition Capitalized contract costs associated with new contracts entered into during the period. + References No definition available. + Details
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- Definition Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054 + Details
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- Definition Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054 + Details
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Period Type: | instant

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- References No definition available. + Details
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