|
Commitments and Contingencies - Narrative (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Loss Contingencies [Line Items] | |||
| Operating Leases, Rent Expense | $ 6.0us-gaap_LeaseAndRentalExpense | $ 5.8us-gaap_LeaseAndRentalExpense | $ 5.8us-gaap_LeaseAndRentalExpense |
| Purchase commitments to complete construction | 80.3us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted | ||
| Partnership Interest [Member] | |||
| Loss Contingencies [Line Items] | |||
| Purchase commitments to complete construction |
$ 33.5us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = us-gaap_PartnershipInterestMember |
||
| X | ||||||||||
|
- Definition
Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|