COMMITMENTS AND CONTINGENCIES: (Tables)

6 Months Ended

Jun. 30, 2016

Commitments and Contingencies Disclosure [Abstract]

Schedule of future minimum payments under non-cancelable operating and capital leases

At June 30, 2016, future minimum payments under non-cancelable operating leases are as follows:

	(in thousands)
2016 due in remaining six months	$	10,679
2017	18,299
2018	14,477
2019	11,046
2020 and thereafter	11,176
Total minimum lease payments	$	65,677

Purchase Commitment, Excluding Long-term Commitment

At June 30, 2016, the Company had the following non-cancelable purchase commitments:

	(in thousands)
2016 due in remaining six months	$	100,446
2017	9,230
2018	3,836
2019 and thereafter	25
	$	113,537