Noncontrolling Interests Redeemable Noncontrolilng Interests Rollforward (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Redeemable Noncontrolling Interest [Line Items]
Redeemable noncontrolling interests at beginning of year	$ 20,905
Nonredeemable Noncontrolling Interest at beginning of year	386
Net income attributable to noncontrolling interests	1,229	1,236
Redeemable noncontrolling interests at end of period	19,911
Nonredeemable Noncontrolling Interest at end of period	2,601
Redeemable Noncontrolling Interest [Member]
Redeemable Noncontrolling Interest [Line Items]
Redeemable noncontrolling interests at beginning of year	20,905	19,468
Net income attributable to noncontrolling interests	1,080	1,204
Redeemable noncontrolling interest, decrease from distributions to redeemable noncontrolling interest holders	(1,055)	(1,061)
Redeemable Noncontrolling Interest Increase, Purchase of Additional Ownership Interest	0
Noncontrolling Interest, Increase from Subsidiary Equity Issuance	(1,652)
Amortization of Noncontrolling Interest Equity Compensation	0	0
Noncontrolling Interest, adjustment to fair value	633	1,163
Redeemable noncontrolling interests at end of period	19,911	20,774
Noncontrolling Interest [Member]
Redeemable Noncontrolling Interest [Line Items]
Nonredeemable Noncontrolling Interest at beginning of year	386	171
Net income attributable to noncontrolling interests	149	32
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	(123)	(133)
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests	419
Noncontrolling Interest, Increase from Subsidiary Equity Issuance	1,652
Amortization of Noncontrolling Interest Equity Compensation	118	24
Noncontrolling Interest, adjustment to fair value	0	16
Nonredeemable Noncontrolling Interest at end of period	$ 2,601	$ 110

Amortization of Noncontrolling Interest Equity Compensation

No definition available.

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- Definition

Decrease in redeemable noncontrolling interest balance from payment of dividends or other distributions to redeemable noncontrolling interest holders

+ References

No definition available.

+ Details

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- Definition

Redeemable Noncontrolling Interest Increase, Purchase of Additional Ownership Interest - Increase in balance of noncontrolling interest due to purchase of additional interest in subsidiary.

+ References

No definition available.

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- Definition

Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders.

+ References

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- Definition

Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 45

-Paragraph 23

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-Publisher FASB

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-Topic 810

-SubTopic 10

-Section 45

-Paragraph 24

-URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4616395-111683

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- Definition

Net Increase or Decrease in balance of noncontrolling interest in the subsidiary during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 45

-Paragraph 16

-URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4568740-111683

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- Definition

Amount of Net Income (Loss) attributable to noncontrolling interest.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 50

-Paragraph 1A

-URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 55

-Paragraph 4J

-URI http://asc.fasb.org/extlink&oid=31814832&loc=SL4591551-111686

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- Definition

Amount of increase in noncontrolling interest from subsidiary issuance of equity interests to noncontrolling interest holders.

+ References

No definition available.

+ Details

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- Definition

Portion of equity (net assets) in a subsidiary not attributable, directly or indirectly, to the parent entity which is not redeemable by the parent entity.

+ References

No definition available.

+ Details

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- Definition

As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 480

-SubTopic 10

-Section S99

-Paragraph 3A

-Subparagraph (16)(c)

-URI http://asc.fasb.org/extlink&oid=27011957&loc=SL6540498-122764

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 480

-SubTopic 10

-Section S99

-Paragraph 3A

-Subparagraph (12)(c)

-URI http://asc.fasb.org/extlink&oid=27011957&loc=SL6540498-122764

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 480

-SubTopic 10

-Section S99

-Paragraph 3A

-Subparagraph 15

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 480

-SubTopic 10

-Section S99

-Paragraph 3A

-Subparagraph 14

-URI http://asc.fasb.org/extlink&oid=27011957&loc=SL6540498-122764

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