Leases - (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease Practical Expedient Transition Approach	true
Lease, Practical Expedients, Package [true false]	true
Lease Practical Expedient Lease Capitalization	true
Lease Practical Expedient Separate Lease Non Lease Components	false
Lease Practical Expedient Land Easement	true
Right of use assets	$ 40,490
Lease payable obligation	40,490
Adjustment to retained earnings	0
Adjustment | Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right of use assets	42,800
Lease payable obligation	$ 42,800