Commitments and Contingencies - Contractual Obligations (Details) - Dec. 31, 2015 $ in Thousands, £ in Millions	GBP (£)	USD ($)
Material commitments
Total		$ 535,593
2016		136,741
2017-2018		36,884
2019-2020		13,719
More than Five Years		348,249
Credit Enhancement Guarantee
Third party debt collateralized by facilities, debt amount		98,000
Third party debt collateralized by facilities, asset carrying amount		366,000
Ground and other operating leases
Material commitments
Total		383,906
2016		7,870
2017-2018		14,068
2019-2020		13,719
More than Five Years		348,249
Construction loan commitments
Material commitments
Total		2,060
2016		2,060
Development commitments
Material commitments
Total		92,712
2016		92,712
HC-One Facility
Material commitments
Total	£ 39	56,915
2016		34,099
2017-2018		$ 22,816

No definition available.

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- Definition

The carrying value of facilities owned by the entity that are collateral for third party debt.

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The amount of debt owed by a third party for which the entity's facilities are collateral.

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Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

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No definition available.

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Amount of contractual obligation due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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No definition available.

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Amount of contractual obligation due in the fourth and fifth fiscal years following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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No definition available.

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Amount of contractual obligation due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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No definition available.

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Amount of contractual obligation due in the second and third fiscal years following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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No definition available.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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