Accounts Payable, Accrued, and Other Liabilities (Tables)

12 Months Ended

Dec. 31, 2018

Payables and Accruals [Abstract]

Schedule of Accounts Payable and Accrued Liabilities

Accounts payable and accrued liabilities consist of the following (in thousands):

	December 31,
	2018		2017
Accounts payable	$	37,508	$	49,000
Payroll and employee benefits payable	143,803		120,278
Severance and retention bonus payable	28,292		44,685
Bonus payable	170,719		162,710
Commissions payable	126,844		108,969
Taxes payable	19,725		46,758
Other accrued liabilities	183,222		134,421
Total accounts payable and accrued liabilities	$	710,113	$	666,821

Schedule of Other Liabilities

Other liabilities consist of the following (in thousands):

	December 31,
	2018		2017
Non-current deferred revenue	$	21,194	$	16,205
Long-term taxes payable	66,304		66,386
Benefit plan-related liabilities	96,033		118,868
Lease-related matters	165,374		115,840
Non-current deferred tax liabilities	214,687		206,338
Other	50,081		54,362
Total other liabilities	$	613,673	$	577,999