Commitments and Contingencies (Tables) |
3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||
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Mar. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Commitments and Contingencies Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Future Minimum Rental Payments for Operating Leases | Minimum annual rental commitments associated with these leases during the next five years and thereafter are as follows:
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