Commitments (Tables)

12 Months Ended

Dec. 31, 2014

Commitments And Contingencies Disclosure [Abstract]

Schedule of Future Minimum Lease Payments Under Operating Leases, Net of Amount to be Received Under Sub Leases

Future minimum lease payments under operating leases, net of amounts to be received under sub-leases, as of December 31, 2014 are as follows:

(U.S. Dollars in thousands)
2015	$	3,885
2016		3,558
2017		2,866
2018		2,671
2019		2,444
Thereafter		2,741
Total	$	18,165