Recently Issued or Adopted Accounting Standards (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018	Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease assets	$ 385,225		$ 0
Operating lease liabilities	$ 251,196		0
Cumulative effect of new accounting principle in period of adoption			638	$ 30,643
Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of new accounting principle in period of adoption			$ 801	$ 30,643
Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lessee, operating lease, discount rate		6.15%
Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lessee, operating lease, discount rate		7.60%
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease assets		$ 361,700
Operating lease liabilities		216,900
Accounting Standards Update 2016-02 | Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of new accounting principle in period of adoption		$ 600