Leases and Leases Commitments - Schedule of Maturities of Lease Liabilities (Details) $ in Thousands	Jun. 30, 2019 USD ($)
Leases [Abstract]
2019 (excluding six months ended June 30, 2019)	$ 17,079
2020	30,597
2021	28,702
2022	28,252
2023	28,236
2024	28,315
Thereafter	46,448
Total lease payments	207,629
Less: interest	(52,990)
Operating lease liabilities	154,639
Amounts recognized in unaudited Condensed Consolidated Balance Sheets:
Accrued liabilities	$ 19,697
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:AccruedLiabilitiesMember
Other liabilities	$ 134,942
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesMember
Total operating lease liability	$ 154,639