Lease - Schedule of Reconciliation of Future Undiscounted Cash Flows to Operating Lease Liabilities After Adoption of 842 (Details) $ in Thousands	Mar. 31, 2019 USD ($)
Operating Lease Liabilities, Payments Due [Abstract]
2019 (excluding the three months ended March 31, 2019)	$ 7,469
2020	7,845
2021	5,608
2022	4,513
2023	3,950
Thereafter	8,809
Total future lease payments	38,194
Less: imputed interest	(5,139)
Total operating lease liabilities	33,055
Less: current portion of lease liabilities	(9,402)
Long-term portion of operating lease liabilities	$ 23,653