Acquisitions (Tables)

12 Months Ended

Dec. 31, 2013

Orko Silver Corporation [Member]

Business Acquisition [Line Items]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed

Total consideration paid for the asset acquisition (in thousands):

Common shares issued (11,572,918 at $14.98)	$	173,363
Cash	99,059
Warrants (1,588,768 valued at $3.64 per warrant)	5,777
Transaction advisory fees and other acquisition costs	17,642
Total purchase price	295,841
Current liabilities	2,616
Deferred income taxes	114,339
Total liabilities assumed	116,955
Total consideration	$	412,796

Schedule of Assets Acquired Through Business Combination at Fair Value

Estimated fair value of the assets acquired (in thousands):

Cash	$	3,487
Other current assets	635
Mineral interests	408,352
Other assets	322
Total assets acquired	$	412,796

Global Royalty Corp [Member]

Business Acquisition [Line Items]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed

Total consideration paid for the acquisition (in thousands):

Common shares issued (2,130,351 at $10.42)	$	22,198
Cash	3,849
Total purchase price	26,047
Current liabilities	679
Deferred income taxes	7,926
Total liabilities assumed	8,605
Total consideration	$	34,652

Schedule of Assets Acquired Through Business Combination at Fair Value

Estimated fair value of the assets acquired (in thousands):

Cash	$	165
Receivables	276
Metal and other inventory	111
Mineral interests	34,100
Total assets acquired	$	34,652