Leases and Other - Schedule of Estimated Future Minimum Lease Payments Under Non-cancelable Leases Excluding Variable Leases and Variable Non-lease Components (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Operating Leases
Remainder of 2019	$ 17,844
2020	20,827
2021	10,917
2022	6,918
2023	4,744
Thereafter	12,303
Total future lease payments	73,553
Less: Amount representing interest	(10,375)
Present value of minimum lease payments	63,178
Current portion	21,080
Long-term portion	42,098
Finance Leases
Remainder of 2019	1,964
2020	2,108
2021	1,368
2022	997
2023	913
Thereafter	4,144
Total future lease payments	11,494
Less: Amount representing interest	(2,670)
Present value of minimum lease payments	8,824	$ 4,639
Current portion	2,023
Long-term portion	6,801
Total
Remainder of 2019	19,808
2020	22,935
2021	12,285
2022	7,915
2023	5,657
Thereafter	16,447
Total future lease payments	85,047
Less: Amount representing interest	(13,045)
Total lease liabilities	72,002
Current portion	23,103
Long-term portion	$ 48,899