JHP Acquisition (Source and Use of Funds) (Details) (USD $)					0 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012	Feb. 20, 2014 JHP Group Holdings [Member]	Feb. 20, 2014 JHP Group Holdings [Member]		Feb. 20, 2014 Senior Secured Term Loan [Member] JHP Group Holdings [Member]
Business Acquisition [Line Items]
Senior secured term loan								$ 395,000,000
Sponsor equity contribution					110,000,000
Company cash on hand	108,677,000	130,080,000	103,919,000	36,794,000		1,133,000	[1]
Cash purchase of equity						487,429,000	[1]
Transaction costs						12,350,000
Accrued interest on Company debt					6,354,000
Total source and use of funds					$ 506,133,000

[1] Adjusted to reflect the finalization of working capital adjustments noted above.