Summary of Significant Accounting and Reporting Policies - Reclassifications (Details) - USD ($) $ in Thousands	Jan. 01, 2019	Sep. 30, 2019	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease liabilities		$ 10,478	$ 0
Right-of-Use assets obtained in exchange for operating lease liabilities		$ 10,046	$ 0
Accounting Standards Update 2017-08
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect on Retained Earnings, before tax	$ (16,500)
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease liabilities	10,100
Right-of-Use assets obtained in exchange for operating lease liabilities	$ 9,800