Organization - Narrative (Details) - shares					1 Months Ended	3 Months Ended
	Jul. 09, 2014	Jul. 02, 2013	Mar. 12, 2012	Feb. 29, 2012	Mar. 31, 2012	Jun. 30, 2014	Jul. 03, 2013	Jul. 01, 2013	Mar. 15, 2013
SIR
Organization
Equity investments, number of shares sold (in shares)	22,000,000
Issuance of shares, net (in shares)		10,500,000				10,000,000
Ownership percentage							44.20%
Ownership Percentage	0.00%	56.00%				36.70%
Equity investments, common shares owned (in shares)		22,000,000					22,000,000
GOV
Organization
Ownership Percentage									18.20%
Equity investments, common shares owned (in shares)									9,950,000
SIR
Organization
Less than wholly owned subsidiary, common shares owned (in shares)	22,000,000					22,000,000		22,000,000
Equity investments, number of shares sold (in shares)	22,000,000
Ownership percentage prior to initial public offering			100.00%	100.00%
Issuance of shares, net (in shares)		10,500,000	9,200,000		9,200,000
Ownership Percentage	0.00%	44.20%				36.70%
SIR | Previously reported
Organization
Ownership percentage								56.00%