COMMITMENTS AND CONTINGENCIES: (Tables)

6 Months Ended

Jun. 30, 2015

COMMITMENTS AND CONTINGENCIES:

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

At June 30, 2015, future minimum lease payments under non-cancelable operating and capital leases were as follows:

Year Ended December 31,	Capital Leases			Operating Leases
	(in thousands)
Remaining six months of 2015	$	549		$	10,204
2016	513			11,979
2017	—			8,739
2018	—			5,244
2019	—			3,578
2020 and beyond	—			4,420
Total minimum lease payments	$	1,062		$	44,164
Less: Amount representing interest	(22		)
Present value of capital lease obligations	$	1,040