Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2018

Commitments and Contingencies Disclosure [Abstract]

Schedule of principal contractual commitments outstanding under capital leases

The following table summarizes our principal contractual commitments outstanding under our capital leases at September 30, 2018 for the next five years, and in total thereafter (in thousands):

Remainder of 2018	$	168
2019	671
2020	671
2021	670
2022	527
Thereafter	158
Total minimum lease payments	2,865
Less: Amount representing interest	(256)
Present value of capital lease obligations	2,609
Less current portion of capital lease obligations	(568)
Total long-term capital lease obligations	$	2,041

Rental expense

Rental expense was as follows for the periods indicated (in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2018		2017		2018		2017
Rental expense	$	2,869	$	2,874	$	8,291	$	9,332

Long-term non-cancelable operating leases and terminal arrangements for the next five years

At September 30, 2018, rental obligations under non-cancelable operating leases and terminal arrangements with terms in excess of one year for the next five years and thereafter are payable as follows (in thousands):

Remainder of 2018	$	1,536
2019	3,551
2020	1,780
2021	1,651
2022	1,570
Thereafter	2,966
Total operating lease payments	$	13,054

Schedule of expenses and losses incurred but not reported and accrued workers' compensation

The amount of pre-funded insurance premiums left to cover potential future losses and our accruals for automobile and workers’ compensation claims were as follows at the dates indicated (in thousands):

	September 30,		December 31,
	2018		2017
Pre-funded premiums for losses incurred but not reported	$	497	$	988
Accrued automobile and workers’ compensation claims	1,721		450

Schedule of accrued medical claims

Medical accrual amounts were as follows at the dates indicated (in thousands):

	September 30,		December 31,
	2018		2017
Accrued medical claims	$	1,100	$	1,329