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Commitments and Contingencies (Tables)
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Dec. 31, 2013
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| Commitments and Contingencies [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Lease Expense |
We have various non-cancelable operating leases for facilities, equipment, and software with terms between two and fifteen years. The terms of the facilities leases typically provide for certain minimum payments as well as increases in lease payments based upon the operating cost of the facility and the consumer price index. Rent expense is recognized on a straight-line basis for rent agreements having escalating rent terms. Lease expense for the years ended December 31, 2013, 2012 and 2011 were as follows (in thousands):
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| Future Minimum Annual Non-cancelable Commitments - Leases |
Future minimum annual non-cancelable commitments as of December 31, 2013 are as follows (in thousands):
Future minimum annual non-cancelable commitments under our new headquarters lease as of December 31, 2013, which are not included in the table above, are as follows (in thousands):
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