Recently Adopted and Recently Issued Accounting Standards (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Mar. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right-of-use assets, net	$ 47,662			$ 0
Lease liabilities	$ 44,917
Stranded income tax effects in accumulated other comprehensive income		$ 21,000
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right-of-use assets, net			$ 34,000
Lease liabilities			$ 34,200