New Accounting Pronouncements New Accounting Pronouncements (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Operating lease right-of-use assets	$ 232,996		$ 0
Operating lease liabilities, total	$ 245,134
Accounting Standards Update 2016-02 [Member]
Operating lease right-of-use assets		$ 220,200
Operating lease liabilities, total		$ 227,100