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v3.3.1.900

Commitments and Contingencies (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 USD ($) ft² | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
Operating ground leases [Abstract] |  |  |
Rental property expense | $ 3,400 | $ 3,400 | $ 2,800
Operating ground leases, scheduled future minimum payments [Abstract] |  |  |
Operating leases, future minimum payments, 2016 | 3,033 |  |
Operating leases, future minimum payments, 2017 | 3,067 |  |
Operating leases, future minimum payments, 2018 | 3,103 |  |
Operating leases, future minimum payments, 2019 | 3,140 |  |
Operating leases, future minimum payments, 2020 | 3,179 |  |
Operating leases, future minimum payments, thereafter | 109,157 |  |
Operating leases, total future minimum payments due | 124,679 |  |
Lease and Contractual Commitments [Abstract] |  |  |
Lease and contractual commitments | 340,000 |  |
Accrued amount of lease and contractual commitments | 55,900 |  |
Contingent Consideration [Abstract] |  |  |
Asset acquisition, contingent consideration liability | $ 900 | 3,300 | $ 0
Other Commitments [Abstract] |  |  |
Rentable square feet of commercial real estate (in square feet) | ft² | 32,486,000 |  |
Rentable square feet of commercial real estate under development (in square feet) | ft² | 1,454,200 |  |
Asset Acquisition Contingent Consideration [Member] |  |  |
Contingent Consideration [Abstract] |  |  |
Acquisition purchase price | $ 5,200 | 15,800 |
Asset acquisition, contingent consideration liability | $ 900 | $ 3,300 |
Contingent consideration expiration date | Jun. 30, 2019 | Mar. 31, 2020 |
Accrued Severance Costs [Member] |  |  |
Other Commitments [Abstract] |  |  |
Expected severance costs to be incurred | $ 1,600 |  |
Total Severance Costs [Member] |  |  |
Other Commitments [Abstract] |  |  |
Expected severance costs to be incurred | $ 2,600 |  |
Office Property [Member] |  |  |
Other Commitments [Abstract] |  |  |
Rentable square feet of commercial real estate (in square feet) | ft² | 468,000 |  |
Office Property [Member] | Closure of Division Office [Member] |  |  |
Other Commitments [Abstract] |  |  |
Rentable square feet of commercial real estate (in square feet) | ft² | 468,000 |  |
Retail Property [Member] |  |  |
Other Commitments [Abstract] |  |  |
Rentable square feet of commercial real estate (in square feet) | ft² | 776,000 |  |
Rentable square feet of commercial real estate under development (in square feet) | ft² | 28,000 |  |
Retail Property [Member] | Closure of Division Office [Member] |  |  |
Other Commitments [Abstract] |  |  |
Rentable square feet of commercial real estate (in square feet) | ft² | 776,000 |  |
Rentable square feet of commercial real estate under development (in square feet) | ft² | 28,000 |  |

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