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Recent Accounting Pronouncements - Narratives (Details) - USD ($) | Jan. 01, 2017 | Mar. 31, 2017
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Accounting Standards Update 2016-09 [Member] |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Cumulative Effect on Retained Earnings, Net of Tax | $ 69,000 |
Accounting Standards Update 2016-16 [Member] |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Cumulative Effect on Retained Earnings, Net of Tax | 1,400,000 |
Deferred Tax Assets, Net |  | $ 1,100,000
Deferred Tax Assets, Valuation Allowance |  | 2,100,000
Unamortized Tax Expense, Deferred |  | $ 300,000
Deferred Tax Assets Gross | Accounting Standards Update 2016-09 [Member] |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | 4,600,000 |
Net Deferred Tax Asset | Accounting Standards Update 2016-09 [Member] |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | $ 0 |

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