Other Assets Other Assets (Tables)

3 Months Ended

Mar. 31, 2019

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Schedule of other assets

Other assets consist of the following (in thousands): 

	March 31, 2019			December 31, 2018
Costs to obtain contracts- customer agreements	$	232,567		$	219,307
Costs to obtain contracts- incentives	2,481			—
Accumulated amortization of costs to obtain contracts	(27,641		)	(24,992		)
Unbilled receivables	90,578			81,703
Operating lease right-of-use assets	38,051			20,257
Other assets	31,915			39,410
Total	$	367,951		$	335,685