COMMITMENTS AND CONTINGENCIES: (Tables)

3 Months Ended

Mar. 31, 2015

COMMITMENTS AND CONTINGENCIES:

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

As of March 31, 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 nine months of 2015	$	829		$	11,934
2016	512			10,485
2017	—			7,445
2018	—			4,480
2019	—			3,351
2020 and beyond	—			4,766
Total minimum lease payments	$	1,341		$	42,461
Less: Amount representing interest	(26		)
Present value of capital lease obligations	1,315
Less: Current portion	(1,098		)
Long-term portion of capital lease obligations	$	217